Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 99a29cc317e552fb…

MALICIOUS

Office (OLE)

12.5 KB Created: 1997-09-07 18:18:00 Authoring application: Microsoft Word for Windows 95 First seen: 2012-06-14
MD5: a916bf1d7c2eca38dcf508149395bd1e SHA-1: 8281dfd29bcb96d3f1fa86ca5b7128cc764bcbf6 SHA-256: 99a29cc317e552fba0aa3466b50e19fb7472999998f8a2a4c1cab9746737c59b
80 Risk Score

Malware Insights

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

The sample is a legacy Word document containing a WordBasic AutoOpen macro, indicated by the OLE_LEGACY_WORDBASIC_AUTOEXEC heuristic. This macro likely executes malicious code when the document is opened, a common technique for initial access via spearphishing attachments. The ClamAV detection as Win.Trojan.Lord-1 further supports its malicious nature.

Heuristics 2

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