Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 43a057c879611d01…

MALICIOUS

Office (OLE)

49.0 KB Created: 2010-09-26 02:48:13 Authoring application: Microsoft Excel First seen: 2015-10-04
MD5: dda5b9187b05d8bf6fffd2ac345f361a SHA-1: 7ed58cb57ce773d37489f2a9ce5ece37138d0e65 SHA-256: 43a057c879611d01f2d15cd4c3415b8b55e525930b87215bc1f634964a1281ee
140 Risk Score

Heuristics 3

  • 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.
  • Legacy XLM macro-virus family marker critical OLE_XLM_LEGACY_MACRO_VIRUS
    Workbook contains an Excel 4.0 macro sheet and legacy macro-virus family or workbook-replication strings. This is a narrow indicator for infected XLM workbooks rather than ordinary formula use.
  • 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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