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

Static analysis result for SHA-256 510106a34eda3c3a…

MALICIOUS

Office (OLE)

19.0 KB Created: 1997-03-17 21:01:00 Authoring application: Microsoft Word for Windows 95 First seen: 2012-06-14
MD5: 75a91e079c14eb923ecb1a89610ad599 SHA-1: 94fd4a2bb1c13e6da32808ca8494a095b55c6d25 SHA-256: 510106a34eda3c3a5bd9d769e8fd78000fbbb852e7220cdf0e66a19d5e62684c
100 Risk Score

Malware Insights

Win.Trojan.Mark-1 · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic

The critical ClamAV detection and the presence of legacy WordBasic macro virus markers strongly indicate malicious intent. The macro likely executes a payload, as suggested by the 'ToolsMacro' heuristic firing. The extracted document body contains references to potential macro entry points and file paths, which are included as IOCs.

Heuristics 2

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