Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 2360c2be57f66612…

MALICIOUS

Office (OLE)

2.03 MB Created: 2008-11-12 00:25:56 Authoring application: Microsoft Excel
MD5: a590dfb8ecdf6d760a73c7dc8515eb18 SHA-1: 4fa46846092410ff735b70a6525ae782643ff431 SHA-256: 2360c2be57f66612bc6c1c1dde12ee10e10d77d86d4f7ff4008121209cf84b9f
80 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell

The file is an Excel 4.0 macro sheet, indicated by the OLE_XLM_AUTOOPEN heuristic. The document body presents a fabricated invoice or request for payment related to vehicle maintenance, a common social engineering tactic. The presence of markers like 'Poppy by VicodinES' and 'Excel Formula Macro Virus' suggests a known, albeit older, macro-based malware delivery mechanism. No specific URLs or executable payloads were extracted, but the macro sheet itself is the primary malicious component.

Heuristics 2

  • Legacy Excel formula macro virus marker critical OLE_XLS_FORMULA_MACRO_VIRUS
    Workbook stream contains self-identifying legacy Excel formula macro virus markers. This indicates the document carries formula macro virus content even when no VBA project or modern XLM macro-sheet structure is present.
  • Excel 4.0 (XLM) macro sheet present medium OLE_XLM_AUTOOPEN
    Workbook contains an Excel 4.0 macro sheet sub-stream — XLM is rarely seen in modern legitimate workbooks and was a major Office malware vector during 2020-2022.

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