Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 2672f565dcb6895d…

MALICIOUS

Office (OLE)

426.5 KB Created: 1996-12-17 01:32:42 Authoring application: Microsoft Excel First seen: 2015-09-30
MD5: 8a1f202e7db8c8a6bc99ca739a8d6e50 SHA-1: b7833a451bad4c15bda7aa6a5501f5725b23877f SHA-256: 2672f565dcb6895d15270f4efd93d48c7184657f213ee466bd14098bb799045a
80 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The critical heuristic firing for 'OLE_XLS_FORMULA_MACRO_VIRUS' and the medium firing for 'OLE_XLM_AUTOOPEN' indicate the presence of legacy Excel 4.0 macros. The script explicitly mentions infecting workbooks and saving them as 'Book1.xls', suggesting a macro-based infection or payload delivery mechanism.

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.

Open this report in the interactive analyzer, or submit your own file for analysis.