Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 5c71196db464c625…

MALICIOUS

Office (OLE)

288.0 KB Created: 1996-12-17 01:32:42 Authoring application: Microsoft Excel First seen: 2015-09-27
MD5: 4279b1f4a72782557fcfdb58c0db2cb0 SHA-1: 7ce70168cb59a81cc2f6b411ee545831666ad58f SHA-256: 5c71196db464c6255e5090ce90803f1ac9b6cb8beb6f4d3d7a504cca035f50d9
80 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1203 Exploitation for Client Execution

The critical heuristic firing for 'OLE_XLS_FORMULA_MACRO_VIRUS' indicates the presence of legacy Excel formula macros, often used for malicious purposes. The 'OLE_XLM_AUTOOPEN' heuristic further confirms the use of XLM macros, which are known to be exploited for client execution. The document body, disguised as sales data, likely serves as a lure for this macro-based execution.

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.