Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 5bd34d1330d8e4ca…

MALICIOUS

Office (OLE)

11.5 KB Created: 1996-05-14 08:34:00 Authoring application: Microsoft Word for Windows 95 First seen: 2015-09-18
MD5: 3cc2229153d06ee6c0843312f7891ae0 SHA-1: 741fda15ee108357706946a527ddf7333535c160 SHA-256: 5bd34d1330d8e4ca37ff236c0a1232dac71e6355ae26e80ea91610fd2392eaca
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 macro triggered by the AutoOpen subroutine. This macro is indicative of older malware designed to execute malicious code upon document opening. ClamAV detection as Win.Trojan.W-285 further confirms its malicious nature, suggesting it likely downloads and executes a secondary payload.

Heuristics 2

  • ClamAV: Win.Trojan.W-285 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.W-285
  • 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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