Win.Trojan.Laroux-12 — Office (OLE) malware analysis

Static analysis result for SHA-256 ed3415c25392f764…

MALICIOUS

Office (OLE)

47.5 KB Authoring application: Microsoft Excel First seen: 2012-06-14
MD5: 350be50dc157dd3b166891117d6ba7ff SHA-1: 99e0ffcbda0c0ea6f74d64d106373d67a7f53b58 SHA-256: ed3415c25392f764b1f8759e1e16d049dadc7d25d15dfeeab35e0de4a43c7240
120 Risk Score

Malware Insights

Win.Trojan.Laroux-12 · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic

The file is identified as a malicious Excel 5 macro-virus, specifically Win.Trojan.Laroux-12. Heuristics indicate the presence of macro markers commonly associated with the Laroux family, including auto_open and various workbook/module manipulation functions. The document body contains garbled text, suggesting potential obfuscation or corruption, but the core functionality points to macro execution.

Heuristics 2

  • ClamAV: Legacy.Trojan.Agent-34818 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Legacy.Trojan.Agent-34818
  • Excel 5 Laroux/Larou-CV macro-virus marker cluster critical OLE_XLS5_LAROUX_MACRO_VIRUS
    Legacy Excel workbook contains a Laroux/Larou-CV macro-virus marker cluster including auto_open execution and workbook/module replication strings. This is a narrow indicator for an infected legacy Excel macro workbook.

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