Win.Trojan.Cap-1 — Office (OLE) malware analysis

Static analysis result for SHA-256 a63fc1aef534efcb…

MALICIOUS

Office (OLE)

30.5 KB Created: 1997-06-26 11:29:00 Authoring application: Microsoft Word for Windows 95 First seen: 2015-09-18
MD5: 2a89ac46bbd8813f7405af24e36dcb90 SHA-1: 2c2d8504ef30bde2b36b31034a4b41f73568d30d SHA-256: a63fc1aef534efcbcb3b16ef1bec000831f844ef1a203c4dfe55e250a29af19b
100 Risk Score

Malware Insights

Win.Trojan.Cap-1 · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic

The sample exhibits legacy WordBasic macro virus markers, specifically 'ToolsMacro', indicating the presence of potentially malicious macros. ClamAV detection confirms this, identifying the file as Win.Trojan.Cap-1. The presence of these markers and the confirmed detection strongly suggest the file is a malicious macro-based document.

Heuristics 2

  • ClamAV: Win.Trojan.Cap-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Cap-1
  • 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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