Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 1a3adc428644ce61…

MALICIOUS

Office (OLE)

372.0 KB Created: 2003-04-25 08:18:33 Authoring application: Microsoft Excel First seen: 2015-10-05
MD5: 76691853ec6b75fbd5fbc0de6715fc60 SHA-1: b388c361becf8a8542a924af17c0f65aa31af23a SHA-256: 1a3adc428644ce611a6619aac5235ff2b786d51154e9f9b66757ea0e5afb3a5a
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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