Malicious Office (OLE) / .XLS — malware analysis report

Static analysis result for SHA-256 bdde1f931fd60981…

MALICIOUS

Office (OLE) / .XLS

1.12 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 282fe3bcb1355a0f07900b10e9b13ca1 SHA-1: eb135b16383180c3e3ea1229cf91fb01fbb9fa20 SHA-256: bdde1f931fd609815a6c69e4087a089e5190463efad18c1b9f32e80bb41fc730
60 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.001 PowerShell

The critical heuristic firing indicates exploitation of CVE-2017-0199, a known vulnerability used to download and execute remote content. The extracted URL points to a remote loader, suggesting the file's purpose is to fetch and run a secondary malicious payload. No VBA or script content was extracted, but the OLE structure and the CVE exploit are sufficient indicators.

Heuristics 1

  • OLE2Link / URL Moniker → remote loader — CVE-2017-0199 critical CVE likely CVE_2017_0199
    Document contains an embedded OLE link object whose URL Moniker points to a remote URL. When the host file is opened, Office follows the link, downloads the URL, and processes the response based on its Content-Type (HTA -> mshta.exe, RTF → Word, etc.) — the documented CVE-2017-0199 primitive. The URL extension is not a reliable filter; servers can return different payloads to Office's user agent.