Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 83ee33b1ad8816b5…

MALICIOUS

Office (OLE)

25.5 KB Created: 1997-10-04 09:14:00 Authoring application: Microsoft Word for Windows 95 First seen: 2012-06-14
MD5: 8401bfd7b558638b9c74eb290ad1b040 SHA-1: 4b721232ce2c3d31d1e7e1600fbc9564ae97e299 SHA-256: 83ee33b1ad8816b5f7796bf28a9ca5c8314cf1c32540386ca197e310b264a3b8
80 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file is an OLE document containing legacy WordBasic auto-exec macros, specifically an AUTOOPEN macro. This indicates an attempt to automatically execute malicious code when the document is opened. The ClamAV detection as Win.Trojan.Ammy-1 further supports its malicious nature. The presence of an AUTOOPEN macro suggests it's likely delivered as a spearphishing attachment.

Heuristics 2

  • ClamAV: Win.Trojan.Ammy-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Ammy-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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