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

Static analysis result for SHA-256 e88b4f0cc0a62af8…

MALICIOUS

Office (OLE) / .XLS

674.0 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel First seen: 2024-06-12
MD5: ab906524ec7fe6fb60907b137918a9b2 SHA-1: c3eb7adfbbc751398ba35f1bd3978f16e2ecdb3d SHA-256: e88b4f0cc0a62af8f58794dbe1dfd2a514e78254b0431f0ec111638a469cb324
62 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.001 Malicious Link: Embedded Link T1059 Command and Scripting Interpreter T1059.001 Command and Scripting Interpreter: PowerShell T1190 Exploit Public-Facing Application

The critical heuristic firing indicates exploitation of CVE-2017-0199 via an OLE2Link object, which is designed to load remote content. The embedded URL, https://gf.to/LGyVINNuS, is the likely source of the secondary payload. This exploit pattern is commonly used to download and execute further malicious stages.

Heuristics 2

  • 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.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://gf.to/LGyVINNuS

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