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

Static analysis result for SHA-256 e2f8064a2b3a3b4a…

MALICIOUS

Office (OLE) / .XLS

301.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 51a384c21f19b18a4fd736d1d8411136 SHA-1: 169111b03452eb28cc3e1b131676af646d5778a3 SHA-256: e2f8064a2b3a3b4a04f874a8666cddc6cfdf1159e487f88f225baa22f0c2efef
60 Risk Score

Malware Insights

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

The critical heuristic firing indicates the exploitation of CVE-2017-0199 via an OLE2Link object. This technique is commonly used to download and execute remote payloads from a specified URL. The extracted URL, https://slug.vercel.app/r5x0z3b, is highly suspicious and likely serves as the initial download source for a secondary stage. The file's structure and the nature of the exploit suggest a downloader or dropper functionality.

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.