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

Static analysis result for SHA-256 f89ff3565fa711b9…

MALICIOUS

Office (OLE) / .XLSX

1.17 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: eb2fe858feaa4595e7bdb0949926a5dc SHA-1: a0369d920034af28bdf51149f2b194636f790f1e SHA-256: f89ff3565fa711b9a69c2c1196906e0839c49becae858af259e8ed1892bf6d9b
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 via an OLE2Link object with a URL moniker. This technique is used to download and execute a remote payload from the provided URL. The extracted URL is the primary indicator of compromise.

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.

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