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https://github.com/mgeeky/RobustPentestMacro

This is a rich-featured Visual Basic macro code for use during Penetration Testing assignments, implementing various advanced post-exploitation techniques.
https://github.com/mgeeky/RobustPentestMacro

macro office penetration pentest testing vbscript

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This is a rich-featured Visual Basic macro code for use during Penetration Testing assignments, implementing various advanced post-exploitation techniques.

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## RobustPentestMacro



This is a rich-featured Visual Basic macro code for use during Penetration Testing assignments, implementing various advanced post-exploitation techniques like sandbox evasion, WMI persistence and ~~page substitution~~. Intended to be able to infect both Windows and Mac OS X Office platforms by implementing platform-detection logic.



Created to make it possibly to simply _Paste Payload then Copy & Paste entire macro_ into phished document.



For list of example Macro generation and usage scenarios one can check out author's gist here:



[Various-Macro-Based-RCEs.md](https://gist.github.com/mgeeky/9dee0ac86c65cdd9cb5a2f64cef51991)



---



### SYNOPSIS:



This is a skeleton code for the malicious Macro that could

be used during Penetration Testing assignments (or for education

purposes), in order to embed it within Phishing documents as a

Microsoft Office macro.



There are following features implemented:



- **Platform detection logic (Windows/MacOS X)** - All the penetration tester has to do, is to generate both Windows and Mac OS X commands and put them into appropriate macro's functions: `WindowsMalware()` and `MacMalware()`

- **Sandbox detection** (Windows) - allowing to exit macro when being scanned

- **WMI Subscription persistence** (Windows) - allowing to survive system restart

- **Social Engineering trick by shape removing** - for hiding fake "Enable Content" warning.

- **Supporting both MSWORD and EXCEL startup routines**



> One should definitely feed this script into some kind of 

> Visual Basic obfuscator, like the author's one:

>	[VisualBasicObfuscator](https://github.com/mgeeky/VisualBasicObfuscator)



The macro's code has been built up from other author's building blocks:

- [WMIPersistence.vbs](https://gist.github.com/mgeeky/d00ba855d2af73fd8d7446df0f64c25a)

- [MacroDetectSandbox.vbs](https://gist.github.com/mgeeky/61e4dfe305ab719e9874ca442779a91d)



---



### CONFIGURATION



The most essential configuration here is filling up functions like `MalwareWindows()` and `MalwareMac()`.

One can for instance leverage **Empire** stager's functionality and obtain two payloads - for:

- `windows/macro`

- `osx/macro`



Then one have to put this way generated macros into aforementioned `Malware*()` functions. The penetration tester also can use buil-in primitives like:

- `ExecuteCommand(command)`

- `ExecuteCommandAndPersist command, startupTaskName`



For instance, such modifications to the script could look like:



```

Private Sub WindowsMalware()

	[...]

	str = "powershell -noP -sta -w 1 -enc  ABCDEFGHIJKLMNOPQ"

    str = str + "ABCDEFGHIJKLMNOPQRSTUWXYZ0123456789"

    ' Rest of the powershell command cut for brevity

    ' [...]

    str = str + "ABCDEFGHIJKLMNOPQRSTUWXYZ0123456789"

    

    ExecuteCommandAndPersist str, ""

End Sub



Private Sub MacMalware()  

	[...]

	cmd = "abcdefghijlmnopqrstuxwyz012345678990"

    cmd = cmd + "abcdefghijlmnopqrstuxwyz012345678990"

    ' Rest of bash command cut for brevity

    ' [...]

    cmd = cmd + "abcdefghijlmnopqrstuxwyz012345678990"

    

    Dim fullCommand As String

    fullCommand = "echo ""import sys,base64;exec(base64.b64decode(\"" " & cmd & " \""));"" | python &"



    ExecuteCommandAndPersist fullCommand, ""

```



Also, there are `Const` options documented within code's CONFIGURATION section that are self-explanatory and left to be reviewed by the user.



---



### SOCIAL ENGINEERING SHAPE REMOVAL:



In order to leverage this feature, one has to prepare a fake "_Enable Content_" warning message

like for instance Microsoft Office compatibility issues, AV scanned flag or something imaginary,

and then to create a shape consisting of TextBox (via INSERT -> Shapes... -> TextBox). Then cover

the document with this shape. Having that, one has to rename that shape using the path:

	

`(Ribbon -> HOME -> Editing -> Select... -> Selection Pane -> give it a name, like "**warning-div**")`



After that, the shape can be further modified to be floating and cover up entire document by clicking:

		

`Right click on shape -> Move selected shape -> then setting up Position and Size to 100%, Left-Top aligned.`



Among various _Social Engineering_ shapes that could be used - two of them had been attached to this repository:



![Example shape](1.png "Example Shape")



---



### TODO:



- Add **OpenOffice** platform detection and autorun logic (`OnOpen`), then modify OS detection if's to support `getGUItype` method offered by OpenOffice.

- Add document layout switching functionality, like the original page subsitute function did.

- Implement host reconnaissance and situation exfil functionality

- Refactor the code to make it a bit less detectable by AVs

- Add architecture bitness detection logic and specific payload usage

- ~~Add macOS related function for platform indepency~~

- Add macOS X persistence functionality (`MacPersistence()`) in form of for instance per-user _LaunchAgents_ PLIST

- Prepare builder-script customizing script's backbone as needed by user and offering instant obfuscation

- Add more Sandbox evasion and avoidance techniques, as documented in [pafishmacro](https://github.com/joesecurity/pafishmacro/blob/master/code.vba), [here](https://securingtomorrow.mcafee.com/mcafee-labs/macro-malware-employs-advanced-obfuscation-to-avoid-detection/), [here](https://securingtomorrow.mcafee.com/mcafee-labs/macro-malware-adds-tricks-uses-maxmind-to-avoid-detection/) and [here](https://phishme.com/macro-based-anti-analysis/)



---



### KNOWN BUGS:



- The routine: `DeleteWarningShape` doesn't support Excel sheets at the moment (`ActiveWorkbook`)



---



### DISCALIMER:



The author of this code is not taking any responsibilities of

any illegal usage of it. The code had been created solely for 

Penetration Testing purposes.



---



### ☕ Show Support ☕



This and other projects are outcome of sleepless nights and **plenty of hard work**. If you like what I do and appreciate that I always give back to the community,

[Consider buying me a coffee](https://github.com/sponsors/mgeeky) _(or better a beer)_ just to say thank you! 💪 



---



## Author



```   

   Mariusz Banach / mgeeky, '17

   

   (https://github.com/mgeeky)

```