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

Static analysis result for SHA-256 d9722181aaf37215…

MALICIOUS

Office (OLE) / .XLSX

158.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel First seen: 2024-08-14
MD5: 4564e23b039ae724349e99e5588f5b9f SHA-1: f72fd5591cde7e1f64e9c88c991deef1b17a0a84 SHA-256: d9722181aaf37215230b484b8dd47c0d7bb90485afc6fa606d88052d55397278
62 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.001 Malicious Link T1059 Command and Scripting Interpreter T1059.001 PowerShell

The sample exploits CVE-2017-0199, a known vulnerability for remote code execution. It leverages a URL moniker to download a secondary payload from the external URL 'https://jiourl.com/BdMKxP'. This indicates a downloader or dropper functionality, aiming to fetch and execute further malicious content.

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://jiourl.com/BdMKxP

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