Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 83c85fdbda7e7b21…

MALICIOUS

Office (OLE)

300.0 KB Created: 1996-12-27 11:27:00 Authoring application: Microsoft Word 6.0 First seen: 2012-06-14
MD5: d9bb30faa2bbda16be8b2aa76c449b1d SHA-1: 235fa51e61fa386a7f79da3ba7b63b674e459fb9 SHA-256: 83c85fdbda7e7b211bc7cacb1161978693429990248f3ad4cf791ae0f8617ca5
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-execution markers like 'AutoOpen'. This indicates an attempt to run embedded macros when the document is opened. The ClamAV heuristic further confirms its malicious nature, classifying it as Win.Tool.WM-11. The presence of 'AutoOpen' suggests the macro is designed to execute automatically, likely to download and execute a secondary payload.

Heuristics 2

  • ClamAV: Win.Tool.WM-11 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Tool.WM-11
  • 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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