Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 7bf49f1cde144927…

MALICIOUS

Office (OLE)

27.0 KB Created: 1997-03-30 13:27:00 Authoring application: Microsoft Word for Windows 95 First seen: 2012-06-14
MD5: b036a6bf09dee9d332c42a42dc57d454 SHA-1: 2fbbd243e1669ed8d6cc49842dd3df3865706603 SHA-256: 7bf49f1cde14492794472d02ff807023ebb6b0696a241acade2360c1a1edf6ea
80 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The file is identified as malicious by ClamAV with the signature Win.Trojan.Slow-4. A legacy WordBasic macro named 'AutoClose' was detected, which is a known marker for auto-execution of malicious code upon document closure. The presence of this marker and the legacy nature of the macro suggest a downloader or other malicious payload execution.

Heuristics 2

  • ClamAV: Win.Trojan.Slow-4 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Slow-4
  • 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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