Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 9238a4518565e39a…

MALICIOUS

Office (OLE)

181.5 KB Created: 1996-12-17 01:32:42 Authoring application: Microsoft Excel First seen: 2015-10-05
MD5: bc91ea36fbe6e07f9f735c9c80bdff30 SHA-1: 09dc9dffd29261b1fd3549756d55bbcf7d8e902b SHA-256: 9238a4518565e39a18ce628bd5e1601141132ee2346ef8cd51ffa4c79f980b07
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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