Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 7a4c2dd4728f0590…

MALICIOUS

Office (OLE)

14.0 KB Created: 1997-01-03 16:09:00 Authoring application: Microsoft Word 6.0 First seen: 2012-06-14
MD5: 5e36f107b9da087fd680c09fcaafa6cc SHA-1: 110b8004cd42054de4e642db7b8a6df470cb0f6f SHA-256: 7a4c2dd4728f05906eff65ba0e7cf8a7ef77c993973fc54efd7f43ff50f8c9f8
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.Nop-2. Static analysis revealed a legacy WordBasic AutoOpen macro, which is a common technique for executing malicious code when a document is opened. The presence of the 'AutoOpen' marker and the 'NOP virus! Nightmare Joker (SLAM)' text strongly suggests an attempt to execute a malicious script.

Heuristics 2

  • ClamAV: Win.Trojan.Nop-2 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Nop-2
  • 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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