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

Static analysis result for SHA-256 eb263a4d86f82c2d…

MALICIOUS

Office (OLE)

51.0 KB Authoring application: Microsoft Excel First seen: 2012-06-14
MD5: ba18ef6380b9dcb5c77a4f9f8f39df27 SHA-1: 16d2a68eeeffb061c9e3e4cb96bad647c2850d3e SHA-256: eb263a4d86f82c2d433775f0929d0cde86e415bac62184e422d971722341c7a1
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-479 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Legacy.Trojan.Agent-479
  • 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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