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

Static analysis result for SHA-256 fdef36a477101546…

MALICIOUS

Office (OLE) / .XLSX

664.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: 9e041819ca201bd4750fa61ec1f33e08 SHA-1: 1704637ebca3eeb350c3b9d289769f134d56c265 SHA-256: fdef36a4771015461fa01873a4c9fffee4afa5c6995156443cccc2dfdacd8ae2
60 Risk Score

Malware Insights

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

The sample is an OLE file that exploits CVE-2017-0199 via a URL moniker to load a remote resource. The extracted URL points to a potentially malicious PHP file, indicating a likely downloader or initial access vector. The exploit targets a known vulnerability for remote code execution.

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.