Win.Trojan.Laroux-61 — Office (OLE) malware analysis

Static analysis result for SHA-256 382a806008e14604…

MALICIOUS

Office (OLE)

28.0 KB Created: 1998-09-23 02:11:45 Authoring application: Microsoft Excel First seen: 2012-06-14
MD5: e1a5df808b1acc423e4499f40e53d6e3 SHA-1: 0b129583b9e4d76d0bb3eb8da58b26f4f198e070 SHA-256: 382a806008e146047d85e629867a3555802ba2a1d6cb7eb4c9e8592b38502517
120 Risk Score

Malware Insights

Win.Trojan.Laroux-61 · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic

The file contains markers indicative of the Excel 5 Laroux macro-virus, specifically mentioning 'laroux' and 'auto_open'. This family is known for its ability to execute arbitrary code within the Excel environment. The presence of these markers strongly suggests malicious intent and a classic macro-based attack.

Heuristics 2

  • ClamAV: Win.Trojan.Laroux-61 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Laroux-61
  • 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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