Win.Trojan.Laroux-70 — Office (OLE) malware analysis

Static analysis result for SHA-256 eed778640b98c35c…

MALICIOUS

Office (OLE)

970.0 KB Created: 1998-10-31 04:11:10 Authoring application: Microsoft Excel First seen: 2012-06-14
MD5: 45ec504f4eb5e0c0e30beddc0f14f93a SHA-1: 67501a9a634ee29d3a0b3dd11c971e201d9ee2cb SHA-256: eed778640b98c35c6cb044c3e2a15f7aa31be021c08d2644b1f7bf33419f2c93
120 Risk Score

Malware Insights

Win.Trojan.Laroux-70 · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic

The file is identified as a malicious Excel 5 macro virus, specifically Win.Trojan.Laroux-70. The presence of macro virus markers and the ClamAV detection strongly indicate malicious intent. The document body, while containing seemingly legitimate business-related text, is likely a lure to disguise the macro's execution. The primary function of this type of malware is to execute arbitrary code, often for downloading additional payloads or stealing information.

Heuristics 2

  • ClamAV: Win.Trojan.Laroux-70 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Laroux-70
  • 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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