Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 4f3f37c24032dcf1…

MALICIOUS

Office (OLE)

87.0 KB Created: 1997-02-04 13:58:00 Authoring application: Microsoft Word for Windows 95 First seen: 2012-06-14
MD5: 201153d3fa4891edecc39c99eea2905b SHA-1: 7b9731a4569f23b3caa04b809f06e81eed7e4fab SHA-256: 4f3f37c24032dcf1bd87ffcadbcaa54ee4ae1287a82e8754d1bac3a87547b699
100 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The sample is identified as a legacy WordBasic macro virus by heuristics, specifically noting the 'TOOLSMACRO' marker. ClamAV also detects it as Win.Trojan.Box-7. The presence of legacy macro functions like AUTOOPEN and AUTOCLOSE strongly indicates malicious intent, likely to execute arbitrary code upon opening the document.

Heuristics 2

  • ClamAV: Win.Trojan.Box-7 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Box-7
  • Legacy WordBasic macro-virus markers high OLE_LEGACY_WORDBASIC_MACRO_VIRUS
    OLE Word document contains legacy WordBasic auto-execution macro markers such as AutoOpen plus ToolsMacro/MacroFile/fileMacro/globMacro or named historical macro-virus strings. These old Word 6/95 macro forms are not exposed as a modern VBA project, so normal VBA source extraction can miss them.

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