Concept — Office (OLE) malware analysis

Static analysis result for SHA-256 10e39ba89241a829…

MALICIOUS

Office (OLE)

383.5 KB Created: 1996-12-27 04:35:00 Authoring application: Microsoft Word for Windows 95 First seen: 2012-06-14
MD5: f023766dd51594f66017517e2f9a6ae6 SHA-1: 613df6c3541ff9db2491724245c995fd4ec7a1f5 SHA-256: 10e39ba89241a829fc99d05d46718ce61bf48283b6ba49ef111aa7f0f7c81a36
100 Risk Score

Malware Insights

Concept · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic

The file is identified as a legacy WordBasic macro-virus, specifically flagged by ClamAV as Win.Trojan.Concept-19. The presence of legacy macro virus markers and the specific ClamAV detection strongly suggest this is a variant of the Concept virus, which historically spread via malicious Word documents. The document body contains obfuscated macro code and references to macro names like 'ToolsMacro' and 'AutoOpen', consistent with macro-based malware execution.

Heuristics 2

  • ClamAV: Win.Trojan.Concept-19 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Concept-19
  • 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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