Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 81d16147723f262c…

MALICIOUS

Office (OLE)

208.5 KB Created: 2006-04-13 08:12:35 Authoring application: Microsoft Excel First seen: 2012-07-06
MD5: ed4b20c242d74068b45ef292db4f3b13 SHA-1: dffb17538b68c3bc98a338e802b5ac464e78ba11 SHA-256: 81d16147723f262c9d9cebebd9762ef81249ca1e05f2db634a9b7fd298e926d3
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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