Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 4492b695c7499191…

MALICIOUS

Office (OLE)

13.5 KB Created: 1999-01-25 17:09:00 Authoring application: Microsoft Word for Windows 95 First seen: 2012-06-14
MD5: d5eff6fc427f4d69512874926a67be6c SHA-1: dc0bf9580dd01b6a0d3a2f8147913bda90a432d9 SHA-256: 4492b695c7499191a3d847f4201f34477f86815e9b2ebb6639b31a90b4486f05
80 Risk Score

Malware Insights

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

The file is a legacy Word document containing a WordBasic macro named 'AutoOpen', which is a known auto-execution marker. This heuristic firing, combined with the ClamAV detection of 'Win.Trojan.Alliance-1', strongly suggests the macro is malicious and intended to download and execute a secondary payload. The macro's presence indicates a likely spearphishing attachment delivery method.

Heuristics 2

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