Obfuscate word macro

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Click the GREEN RUN ARROW on the toolbar, or press F5 key, or select Run > Run Sub/User Form from the menu to run the subprocedure. Dropping and starting an executable is a big chance to trigger AV, create a suspicious file and process, and possibly leave more logs to clean up. file. This in This may or may not be a real word. The Office Telemetry Agent must be configured to obfuscate the file name, file path, and title of Office documents before uploading telemetry data to the shared folder. In this step, we’re going to use usestager type macro to create the malicious macro: >>> usestager macro projectData . In the IT context, obfuscation is used to protect the intellectual property of a software in making its source code incomprehensible (for human thought) while keeping it compilable or interpretable for a computer. As best as I can tell, fields existed before macros. How To Create & Obfuscate a Virus Inside of a Microsoft Word Document. In the Macros in list, click Word Commands. It executes PowerShell command. 2. There are two types of procedures in Word VBA: Step 4: Create Macro. docm or Word Macro-Enabled Document in a folder on the computer. to make (something) unclear to the understanding Synonyms: becloud, befog, blur… A lot of find/replace. I have managed to find the payload by decrypting the Chr() values, but the rest of the code is unrecongnisable. To start, we define a listener, Perhaps as VBA code in Excel or Word for example. xls -p plugin_http_heuristics, Find obfuscated URLs in file. I used the awesome tool olevba, a part of the oletools project, that allows you to query VBA macro source code directly from the malicious file on a *nix system using The Word macro uses WMI (Windows Management Instrumentation) to detect the presence of a VM. Jan 8, 2019 It was a Microsoft Word document and, after some inspection, it became clear that it contained a malicious macro. This macro is heavily obfuscated with junk code and random variable/function name. ) that have embedded VBA macros on our malware analysis service , which try to drop Dridex or similar. 3. If we send We insert the macro inside a word file and we use EvilClippy. Malicious Word macro. Macros could be used maliciously to drop malware, download malware, etc. To Keep Prying eyes away from your code you can right click on your project in VBA then select VBA Project Properties. Also known as document  Macro Pack can generate several kind of MS office documents and scripts formats. Toretto Macro Word & Excel Exploit Builder %100 FUD Free FUD Update Unlitimed Security Full Random Code Obfuscate Shell Code All Office Version Working Skype Deobfuscate a VB Macro in Word Doc (self. Feb 29, 2016 Maybe the similarity to VBA scripts and possible use in macros is responsible So some of them have tried some obfuscation methods to make it harder . So, we open a Word document go to “View” tab and select “Macros”. This is a built-in macro function that triggers when the document file is opened. What is another word for macro? Deobfuscate office VBA code (malware) [closed] I have been sent a malicious email and I am trying to figure out what the malicious code does. When triggered, the macro will download and install malware from a compromised website. Sha1: 4C7C8B1897CA22E4E477C361DAF676D471A4F4AF Sha256: EBDA287F6B33A0C7A689E1D8FDE7ABC708C9DFBCA2759A56CD055868B2CC0911 MD5: 35756ECC87405E42F62DEEEEF18FD43A. Deobfuscating the VBA Macro We extracted the VBA code of the macro using oledump. Let's say it is. And then  Protect a VBA code (Excel): obfuscation is the only effective solution to protect a An effective solution to protect VBA code is obfuscation, in other words, the  Dec 19, 2017 Dive deep into Word and you'll find a feature called fields. It is very simple to use: No configuration. py: The macro_pack is a tool used to automatize obfuscation and generation of retro formats such as MS Office documents or VBS like format. New Word malware attacks infect systems without using macros. com/office/word/2003/wordml}}\n"  Jan 6, 2016 are obfuscated and avoid a significant percentage of detection. Macro Pack The macro_pack is a tool used to automatize obfuscation and generation of MS Office documents for pentest, demo, and social engineering assessments. excel word vba programm software code macro obfuscator obfuscating obfuscation schutz schützen sicherung passwort I have a MS Word document I need to share with a third party that I need to obfuscate. The file modMacros484. When executed the VBA macro writes 3 files on disk. Additionally, a collection of anti-sandbox  The first macro virus to be spread in the wild through Microsoft Word was Concept, which Learn how obfuscated macro malware can be located and removed. 1. Jun 13, 2018 After extracting the script, which I gave you a peek at in the last post, I decided to load the thing into the MS Word macro library. There are two types of procedures in Word VBA: Subroutines — just like a macro, a subroutine does something (opens a window, triggers a menu item, etc. These Word macro virus documents are currently very effective at evading Dec 11, 2014 The file contains a macro which will automatically run if the file is opened. Jun 30, 2017 FIN8 has regularly used obfuscation and WMI to remotely launch their an additional payload hidden in the phishing document by use of the Word. This was commonly a problem in the days of assembly code when it was very hard to tell what the code was going to do unless you were familiar with it. Aug 2, 2016 The Word macro is heavily obfuscated, making it difficult for traditional antivirus products to detect it. Combined with a little social engineering The macro_pack is a tool used to automatize obfuscation and generation of retro formats such as MS Office documents or VBS like format. It makes declaring variables quicker. it has base64 used to obfuscate the string. What methods can I use to decrypt/decode the below code in order to understand what it does. It is a sandboxed environment that lets a user read the contents of a document. Feb 19, 2018. This means we have to personally confirm the operation every time we open a Word document containing a macro, which is not convenient. De-obfuscating malicious Vbscripts. MS Word Macro Exploit 1 minute read Description: The following is an article I read on generating an exploit for MS Word and using it to attack a LAN user. The macro_pack is a tool used to automatize obfuscation and generation of MS Office documents for pentest, demo, and social engineering assessments. Let's break down some code obfuscation techniques found in a Word macro. Other methods we could've used to analyze this malware includes: opening the malicious office doc and enabling macros while running system monitoring/network sniffing tools, or debugging the malicious document in developer mode in Microsoft word. The file name was “Auditor-of-State-Notification-of-EFT-Deposit” with hash values of. The goal of macro_pack is to simplify antimalware solutions bypass and automatize the process from vba generation to final Office document generation. Called Microsoft Office VBA Macro Obfuscation via Metadata, Mertens found a way to run macros where the bulk of the bad part is hidden inside a spreadsheet’s metadata. The cybercriminals have obfuscated the strings such as the drop folder, malware filename, and URL download link. May 22, 2015 In order for this obfuscated macro to work, the above variables are my coworker and I analyzed another macro-based Word exploit that we  Word macro's are being used a lot recently for TorrentLocker, Dridex and now Pingback by Dealing With Numeric Obfuscation – Didier Stevens Videos  Dec 15, 2017 Figure 1: OfficeMalScanner extracting embedded macros from Word be a little overwhelming as it is 80 lines of heavily obfuscated VBA code. Malicious word macro - what next? - posted in General Security: I received a suspicious email about a cancelled bpay transaction. After getting the location of the Word document and downloading it. VBad is a tool that allows you to obfuscate (and encrypted) in many diffrent ways pieces of VBA code and integrated directly into a list of generated MS Office document. (We're using a tool from them which seems to have problems with the format of the document, not the contents, and the document is confidential information. This approach has some advantages, such as that the shell will not die when the program is closed, but it not ideal for a number of reasons. List of characters which could be use in names of macros, functions and variables : copy/paste it back into word. Locate the first line of the macro beginning with the “Sub” command listing the macro name. They are having a better success rate of infecting with Excel because more Excel users have macros two main functions we will focus on, first the generation of a Microsoft Word macro that will ultimately launch a PowerShell based agent, which will beacon to the Command and Control server. The macro_pack is a tool used to automatize obfuscation and generation of retro formats such as MS Office documents or VBS like format. com/blog/2017/macro-less-code-exec-in-msword/. Protect or lock VBA code in Excel. This results in polymorphic malware, with evolving obfuscation patterns and multiple obfuscated variants of the same malicious macro. Examine the document for anomalies, such as risky tags, scripts, or other anomalous aspects. News by The HTA file contains VBScript with obfuscated code. It creates text file. This cheat sheet outlines tips and tools for analyzing malicious documents, such as Microsoft Office, RTF and Adobe Acrobat (PDF) files. To get a little more technical about it, macros are also called “procedures” in MS WORD VBA terminology. When performing something such as a mass mailer attack on a company, sending executables usually isn't the best option. This policy setting configures the Office Telemetry Agent to disguise, or obfuscate, certain file properties that are reported in telemetry data. [1] https ://sensepost. May 23, 2016 At this point, you may want to obfuscate the code, but many people don't even know how to get to the macro's section of Word, muchless what  Sep 6, 2017 To print it, use the one-page PDF version; you can also edit the Word version to If relevant, deobfuscate and examine JavaScript or macro code. Invoke-MacroCreator is a powershell Cmdlet that allows for the creation of an MS-Word document embedding a VBA macro with various payload delivery and execution capabilities. txt is a the output of a proof-of-concept model for obfuscation. See more. Find another word for obfuscate. Regardless of the particular Office The HTA file contains VBScript with obfuscated code. Malware) submitted 3 years ago by D8ulus I have a Word document from a phishing e-mail with a couple of embedded macros that are obfuscated in a way I've not seen before (not that I see a lot of this anyways, just a sysadmin here). Locate embedded code, such as shellcode, VBA macros, JavaScript or other suspicious objects. The macro is password protected. 7 synonyms of obfuscate from the Merriam-Webster Thesaurus, plus 21 related words, definitions, and antonyms. The macro uses simple obfuscation by inserting garbage characters into real strings. Range. On the Protection Tab check off Lock Project for Viewing and enter a password. In this paper, we summarize the obfuscation techniques and propose an obfuscated macro code detection method using Macro Creator - PowerShell VBA macro for MS-Word December 14, 2017 docx , exploitation tools , macro , powershell , vba , word I nvoke-MacroCreator is a powershell Cmdlet that allows for the creation of an MS-Word document embedding a VBA macro with various payloa Office Macro Viruses are a growing threat, that use social engineering to try to get end-users to trigger an auto-running macro in a Word, Excel or PowerPoint document. By decoding each  Aug 6, 2014 After going out of fashion for a number of years, malicious macros inside Office files have recently experienced a revival. To view a list of built-in macros, on the Developer tab, in the Code group, click Macros. Malicious macro files usually are received in Word documents or Excel spreadsheets but other formats do exist though I have never encountered them. Re: VBA obfuscation When performing something such as a mass mailer attack on a company, sending executables usually isn't the best option. obfuscated VBA code will run in both 32/64 bit Office 2010/2013 versions, if your original code was designed to do so. And it creates two bat files which will execute PowerShell script. It was tied to an email address of mine that has NEVER been used MS-Word Payload Delivery: Macro Creator CyberPunk » Exploitation Tools Invoke-MacroCreator is a powershell Cmdlet that allows for the creation of an MS-Word document embedding a VBA macro with various payload delivery and execution capabilities. The obfuscation techniques of macro malware can hide it from detection by virtual machines. Macro Creator - PowerShell VBA macro for MS-Word December 14, 2017 docx , exploitation tools , macro , powershell , vba , word I nvoke-MacroCreator is a powershell Cmdlet that allows for the creation of an MS-Word document embedding a VBA macro with various payloa Office Macro Viruses are a growing threat, that use social engineering to try to get end-users to trigger an auto-running macro in a Word, Excel or PowerPoint document. usually implement obfuscation techniques in their source code. See those detected object names - isn't that awful? iconedit is a small project, there could be hundreds if not thousands of objects listed in there. Ima Learnin'. Excel-VBA applications are particularly concerned by this issue : VBA source code is embedded in CrunchCode – the obfuscator for Excel–VBA. I ran them through the VBA Code Cleaner to strip comments and white space. The word document uses a standard phishing trick: It claims it is “protected” and requests the user to activate macros to be able to see the document contents: 2. Perhaps as VBA code in Excel or Word for example. You can find and insert VBA, Access VBA / ADO / DAO and Excel VBA source code from the logically organized menu. The MS Word macro runs a command prompt invoking powershell with the parameter -ec, used to  Dec 16, 2016 Recently, Fortinet spotted a malicious document macro designed to victim is instructed to enable Microsoft Word's macro execution. Agreeing with and adding to Auric's reply. Apr 18, 2017 n" print " -x 0|1 (RTF only) Generate obfuscated RTF file. . Update You can do real blurring as an artistic effect but that seems to be for the entire picture only. . Instead of selecting three or four items in a row each time, we can write a macro in VBE (Visual Basic Editor) screen, save the macro, go back to Word, and run the macro. I took two macros from my Under-The-Hood suite “SaveAsParagraph†and “SaveAsSelection†with their associated procedures. That's why, in this tutorial, I'll be teaching you how to code a VBA script macro into a Word document in order to compromise a system. Let’s dive into the macro. ClamAV provides an assistance command line component to facilitate signature creation: sigtool which extracts the macro text from a Microsoft Office document file. Macro source codes are easy to obfuscate, and a plethora of free tools are available for attackers to automatically do this. Dec 16, 2017 Yesterday, I found a cool Microsoft Office document which uses its metadata to obfuscate the malicious macro. Invoke-Obfuscation challenges all assumptions these in-memory PowerShell AV signatures have been making. You would be able to : Encrypt all strings present in your VBA code; Encrypt data from your python Script in VBA code (domain names or paths for example); Just a quick post about a problem that security analysts are facing daily… For a while, malicious Office documents are delivered with OLE objects containing VBA macros. Here is a list of most of the characters that can be used to set date and time formats: To print it, use the one-page PDF version; you can also edit the Word version to customize it for you own needs. What happens next? The malicious document contains a VBA macro. So the malware appears to call out over port 80 to download an executable, drop it in the temp directory, and then run it. Note: If you give a new macro the same name as a built-in macro in Office Word 2007, the new macro actions will replace the built-in macro. 2018 School project - PoC of malware code obfuscation in Word macros - bonnetn/vba-obfuscator. The second portion we will focus on during the Macro generation is the Obfuscation option, which will help us avoid detection. Code VBA is a plugin that lets you write VBA code faster. Add the word “Private” at the beginning of the “Sub” line with a space between the word and the name of the macro. Protected View is a feature that has been available in Word, Excel, and PowerPoint since Office 2010. Final year school project, obfuscate Word macros. microsoft. This macro uses the StrReverse and Mid function on different strings to build the malicious PowerShell code. In this article, we will give you detailed instructions of how to digitally sign your Word macro project. bin file. Support is really bad (no email replies whatsoever over a few . some cheerful Thanksgiving words in the email's we have observed,  Mar 8, 2017 A macro is a feature that allows users to create automated processes inside of a document used by software like Microsoft Word, Excel,  Aug 2, 2017 Regardless of the security solution you use to scan macro documents, we've found that cybercriminals often re-obfuscate them, in order to prevent such as the macro enabled word documents, are simply used as an aid to  Mar 20, 2019 The initial document invites the user to enable MACRO execution to This technique, include part of the payload into a Word Label object or cells, After that, it starts a new obfuscated Powershell script which looks like that:. ) when it is “called,” that is, triggered; activated. Let’s create a simple macro that is executed automatically when you open a Word document (using the “Autopen()” subroutine). Firstly, the obfuscation of the variable names and function names is  Jun 1, 2014 We also want to be able to obfuscate the write() , so we'll throw in a getattr() : getattr(__import__("os"), In other words, the following sum:. If you would like to ship your Excel spreadsheet or Word document with your code in it, but don't like that your, so well written code, could be reused without your consent, you could have your code obfuscated, or 'Mushed' I like to call it, making it extremely difficult to read and follow. Press Alt + F11 keys to open your existing code, and in the Microsoft Visual Basic for Applications window, click Tools > VBAProject Properties, see screenshot: 2. VBA project password. To identify the macros, we decompressed all of the DOTM archives and targeted the included . Bad guys are always using obfuscation techniques to make the analysis more difficult and (try to) bypass basic filters. Normally this is hard work for an analyst, but with the aid of the function log extracted by the VMRay analysis, it is much easier. So some of them have tried some obfuscation methods to make it harder for researchers. Macro Pack The macro_pack is a tool used to automatize obfuscation and generation of MS Office documents for pentest, demo, and social engineering assessments. Obfuscate Empire stager vba file and generate a MS Word document:. Analyzing obfuscated VBA macros to extract C2 IP/URLs regardless of runtime behavior Introduction Lately, we have been seeing quite a lot of Office documents (or XML files with embedded Office documents, etc. Obfuscation is a set of techniques that hides the intent of your Excel VBA program without changing its runtime behavior e. dynamoo Mar 24th, 2015 349 Never Not a member of Pastebin yet? Sign Up, it unlocks many cool features! raw Macro will execute on opening file. Below screenshots of word document. The idea behind a field is simple  Malware authors often distribute malware through code macros in Microsoft Office documents such as Word, Excel, or PowerPoint. Macro code is embedded in Office documents written in a programming language known as Visual Basic for Applications (VBA). Macros are great for pentesters, since they don't rely on a specific version, and The Metasploit generated macro code looks like this: . The macro then starts the executable with the Shell function. A lot of find/replace. End To evade detection, malware needs to hide intent. This utility Decompiles and Compacts Microsoft® Visual Basic® for Application (VBA) code saved by Microsoft Access®, Excel®, PowerPoint®, or Word, reducing the file size and the compilation conflict probability between different Microsoft® Office versions while also cleaning compilation garbage accumulated during the project phase that frequently generates errors and slows loading. If Word displays a macro selecting dialog box, select the macro and click Run. CrunchCode – the obfuscator for Excel–VBA. Trace the interaction of H6mg Word docs and PDFs are the most common carriers of malware. By and large, Word disables all macros and pops up notifications whenever we show the intention to run one. VBad: VBA Obfuscation Tools combined with an MS office document generator by do son · Published June 29, 2017 · Updated August 2, 2017 VBad is fully customizable VBA Obfuscation Tool combined with an MS Office document generator. Do you have any idea why running this with meterpreter/reverse_https as the payload might crash word 2007 on a You could try obfuscating the shellcode by different techniques, e. This option which is available in the VBA editor prevents access to the source code providing the password is not known. To extract this behavior, we have to de-obfuscate the Visual Basic code in the macro. When I clicked on Enable Editing and Edit Macro, A pop came up and asking for password. Macros and all other active content are disabled within Protected View, and so James is protected from such attacks so long as he chooses to stay in Protected View. Document"?>) contains #vba macro: Exec #obfuscated  This post provides details of the obfuscation methods used in the VBA macro and the PowerShell script contained within the Word documents. The number one obfuscation technique is to strip out all semantics and reduce the likelihood that any context will be inferred. I would like to identify them and replace each with some random name to obfuscate my code (O0011011010100101 for example), replace part is much easier. By decoding  Nov 20, 2018 in mid-November with upgraded macro obfuscation and formatting. The language being easy to interpret is also a bit of a problem for malware authors as researchers have no problems interpreting what they are up to. Hide Macros. g. Not sure if this is what you're looking for, but hope it helps. python-oletools is a package of python tools to analyze Microsoft OLE2 files (also called Structured Storage, Compound File Binary Format or Compound Document File Format), such as Microsoft Office documents or Outlook messages, mainly for malware analysis, forensics and debugging. ' Macro for MS Word converting parts of text in a special color (here: green) ' into MS Word footnotes Do While Not ActiveDocument. For example: Sub Mw8s() is called only once on line 134, so replace line 134 with the contents of the sub (from Sub Mw8s() to End Sub) The next sub (Sub YpJhS1A9wEZJWVu(H6mgsZsIeeQ As Long)) is also only called once, with the parameter 1. Once you switch to the stager/macro mode, type Options to list all the associated options: >> options . The linked domains seem to be websites with hacked CMS software. In order to be  Jun 6, 2019 Next, we insert the new obfuscated macro inside a new excel file. (4) Type the following subprocedure code in your Code Pane: (5) Save the code (CTRL + S). The protection can be bypassed using a hex editor and replacing the password hash with a known password hash to see its contents. ) So, I was trying to write a macro to text substitute words, but haven't quite gotten there yet. macro_pack – Tool Used To Automatize Obfuscation And Generation Of Ms Office Documents For Pentest, Demo, And Social Engineering Assessments feedly January 20, 2018 Cyber criminals are continuing to use macro embedded Excel and Word docs to spread malware. There are also many methods that infect word and excel documents. Open the VBA macro that you wish to hide from a workbook user's sight when the macro list is chosen. Macros save us time. What you will need: Microsoft Word The Social-Engineer Toolkit (preinstalled on Kali) Apache web server (preinstalled on Kali) The Metasploit Framework (also preinstalled on Kali) To Resolve: Save the document as a .   Oct 11, 2018 They have a range of techniques to obfuscate location, network traffic, or raw code. As the use of in-memory PowerShell malware has grown, implementation of in-memory AV scanning of PowerShell scripts has begun. In the VBAProject – Project Properties dialog box, please click Protection tab, and then check Lock project for viewing, finally, Invoke-Obfuscation is a PowerShell script obfuscator. For deobfuscation we just need to check if the variable/function is used in the program. excel word vba programm software code macro obfuscator obfuscating obfuscation schutz schützen sicherung passwort Macro source codes are easy to obfuscate, and a plethora of free tools are available for attackers to automatically do this. Aug 5, 2019 TIGOCDC) from distributed spam emails that contain a Microsoft Word document with enabled macro. You also spend less time looking for solutions on-line. "{\\*\\xmlnstbl {\\ xmlns1 http://schemas. Nov 19, 2018 Obfuscated macro found in the DOC file. Find out how your enterprise can weed out this kind of malware. adding innovative obfuscation at both the macro and command line levels. Macros are usually small pieces of code that are run when certain global conditions are met, like “AutoOpen” will be executed when you open a document. One pass by the Visual Basic Obfuscator and Garbage, just what you want it to look like. Next, type Execute: >> execute . xls macros. Even with macros disable many users allow the macro to execute. Although obfuscation is related to malicious code detection, little research has been conducted on obfuscation with regards to Visual Basic for Applications (VBA) macros. Feb 18, 2019 Using Microsoft Word to distribute malware is a common tactic used by as well as the ease of obfuscating a malicious macro script: what's not  Nov 20, 2018 Interesting #malicious #xml-based word #document (<?mso-application progid=" Word. Description Basically the script supports three types of payload that you MUST specify using the -t argument: Malicious macros have been around since the birth of WM/Concept which ran under Microsoft Word. Isolation Methodology. The key macro that triggers the payload is the function "AutoOpen()". Word docs and PDFs are the most common carriers of malware. Hide Passwords in Macro. Find over 15 synonyms for macro and other similar words that you can use instead based on 2 separate contexts from our thesaurus. To start, we define a listener, two main functions we will focus on, first the generation of a Microsoft Word macro that will ultimately launch a PowerShell based agent, which will beacon to the Command and Control server. Once executed, the macro will be created and saved in the tmp file. The transformations applied on the code allows the macros to evade signature scans from Antivirus softwares. You can use the Documents folder, but when you later execute it and interact with the victim in Metasploit you will end up in the Documents folder so it’s more elegant to put it somewhere else and not display it. I have bought CrunchCode and beware that it doesn't support 64-bit systems. /word/vbaProject. Office Macro Viruses are a growing threat, that use social engineering to try to get end-users to trigger an auto-running macro in a Word, Excel or PowerPoint document. And in Word you can do the same, place a rectangle with solid colour fill over the sensitive area. These macros are Visual  Jan 16, 2016 That's why, in this tutorial, I'll be teaching you how to code a VBA script macro into a Word document in order to compromise a system. Obfuscate definition, to confuse, bewilder, or stupefy. Once the document is clicked, it drops a  Aug 2, 2016 DOC files, used by MS Word prior to MS Office 2007 allowed numerous The analysis revealed a pattern of machine obfuscated macros being  May 12, 2015 Distribution of malware by email using malicious Word and Excel A simple measure of the macro obfuscation is the number of lines in the  Sep 24, 2018 (RAT), ReversingLabs details three new DDE obfuscation methods. Obtaining Macro Source Code. End - 1 = Selection. , it's a MS Word doc that appears to collect info for doing conversions and running Shell routines. The most common way that attackers do this is through code obfuscation. General Approach to Document Analysis. This program obfuscates the Visual Basic code from Microsoft Word macros. obfuscate word macro

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