Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 a0a1a69df49319c3…

MALICIOUS

Office (OLE)

11.0 KB Created: 1999-04-10 13:00:00 Authoring application: Microsoft Word for Windows 95 First seen: 2012-06-14
MD5: 73c1a167dd0ff9d737d2ea3d9e762618 SHA-1: fbe35b684b8402d8862ee3a835132ab406b88db6 SHA-256: a0a1a69df49319c307d3c00eef545e6cc06863046e789625c6521e9703503be8
80 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The file contains a legacy WordBasic macro named 'aUtOOpen' which is a known marker for auto-execution. This macro is likely intended to run malicious code when the document is opened, a common technique for initial execution. The ClamAV detection 'Win.Trojan.Minimal-31' further supports its malicious nature.

Heuristics 2

  • ClamAV: Win.Trojan.Minimal-31 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Minimal-31
  • 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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