Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 1eb6ed451a1b0f77…

MALICIOUS

Office (OLE)

12.5 KB Created: 1997-05-29 01:17:00 Authoring application: Microsoft Word for Windows 95 First seen: 2012-06-14
MD5: 0cd56cf67399bb382d620ecd751a89e6 SHA-1: c301adf101e6341950eacbebab6b8c57c5e5d0b3 SHA-256: 1eb6ed451a1b0f77dda28473ad9f949ffd4a554183ef3487e085d0e337fcaabf
80 Risk Score

Malware Insights

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

The critical ClamAV heuristic indicates this file is malicious, specifically identified as Win.Trojan.Nop-10. The presence of a legacy WordBasic macro marker 'AutoOpen' strongly suggests an automated execution upon document opening. This macro is likely intended to perform malicious actions, such as system infection or payload delivery, aligning with the characteristics of a trojan.

Heuristics 2

  • ClamAV: Win.Trojan.Nop-10 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Nop-10
  • 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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