Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 8def9a536a409883…

MALICIOUS

Office (OLE)

14.0 KB Created: 1999-02-18 17:45:00 Authoring application: Microsoft Word for Windows 95 First seen: 2012-06-14
MD5: 7ab68ef789745016c313750c9c6a23ea SHA-1: 018153582af01c6785a2ea57049e7f0917dc5fea SHA-256: 8def9a536a4098830e9bf7d2c238dc1ccfd664c06039141e7d454f0d78cb8565
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 and the 'OLE_LEGACY_WORDBASIC_AUTOEXEC' heuristic. The presence of 'infectdoc', 'encrypt1', and 'infectnorm' suggests the macro's intent is to infect or encrypt the user's system. The ClamAV detection further confirms its malicious nature.

Heuristics 2

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