Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 7714e3154fb85ac5…

MALICIOUS

Office (OLE)

13.0 KB Created: 1997-03-11 11:42:00 Authoring application: Microsoft Word for Windows 95 First seen: 2012-06-14
MD5: e1d8f1ce3c946cc3aa429326f22f7daa SHA-1: e8f0691ecb1dd830f5d3ff78e6190f0bf407a98e SHA-256: 7714e3154fb85ac574bb9202c22a50452951734bb9da5409159298bdc56b0be0
80 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The sample is an OLE document containing legacy WordBasic macros, indicated by the AUTOOPEN marker. ClamAV identified it as Win.Trojan.MacroKiller-1. The presence of AUTOOPEN suggests an attempt to automatically execute code when the document is opened, a common technique for malware delivery.

Heuristics 2

  • ClamAV: Win.Trojan.MacroKiller-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.MacroKiller-1
  • Legacy WordBasic auto-exec macro marker medium OLE_LEGACY_WORDBASIC_AUTOEXEC
    OLE Word document contains a legacy WordBasic auto-execution marker such as AutoOpen, but no modern VBA project was recovered and no stronger macro-virus family marker was present. This is analyst-facing evidence for old Word macro execution surface, not a downloader or parser-CVE attribution by itself.

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