Malware

Analysis

Microsoft OLE2 Files

OLE2 is the format for Microsoft Office files. Use oletools to find macros and other things inside OLE files:

GitHub - decalage2/oletools: oletools - python tools to analyze MS OLE2 files (Structured Storage, Compound File Binary Format) and MS Office documents, for malware analysis, forensics and debugging.GitHub

Online Sandboxes

For detecting/reversing malware try these online sandboxes:

• www.hybrid-analysis.com

• www.reverse.it

• https://cuckoosandbox.org/

Creation

Evading Antivirus

For hiding your executable from AV, shellter is better than msfvenom. Also you can use Veil along with iexpress.exe

You can use PS2EXE to convert a powershell script to an executable - makes it easy to download a payload from the internet and execute it.

Meta-twin is a tool that copies the metadata (including the signature, though it will no longer be valid) from an application to your payload. For example, before using this tool, 95% of antiviruses detected the PS2EXE executable as malware. After using this tool, the number dropped significantly (for example windows defender couldnt detect anymore)

Invoke-obfuscation is a powershell command obfuscator.

Persistence

To have persistence on a machine, you could use WMI-persistence from github. It uses WMI events for fileless persistence

Drop Vectors

Windows Settings Shortcut RCE

June 2018 - getting a victim to download and execute a Windows Settings Shortcut file leads to RCE. This can be placed in an Office file, as it’s new and thus not in the blacklist (it is, however, blocked from Microsoft office365 since 11. July 2018).

Windows Settings Shortcuts Can Be Abused for Code Execution on Windows 10BleepingComputer