Office (OLE) / .XLSX malware analysis — malicious · 45971f014df6d607

MALICIOUS

Office (OLE) / .XLSX

1.26 MB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel

MD5: 9395f29bf9aa98cdfc7be58656b0c436 SHA-1: bb011d3f299d379fe2e55fb9afc34ed29b89f484 SHA-256: 45971f014df6d607611e96131089cf154c8842aa2154bd8382badf844dbe96b1

60 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The sample is an Office document that exploits CVE-2017-0199, a known vulnerability for remote code execution. The heuristic explicitly identifies the exploit and provides a URL from which a secondary payload is likely to be loaded. This indicates a classic downloader pattern aiming to fetch and execute further malicious content from the internet.

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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