Malicious Office (OLE) / .XLS — malware analysis report

Static analysis result for SHA-256 1f9eb0d4f3a5b43d…

MALICIOUS

Office (OLE) / .XLS

620.0 KB Created: 2002-01-18 02:38:26 Authoring application: Microsoft Excel
MD5: 2d115a4e5095779174753a8914172906 SHA-1: b871a7c14e6920909ab84a0ea5c4317d987a7760 SHA-256: 1f9eb0d4f3a5b43d575991cdc4a1c6df8e2745115f01f2539b4fd51e4cca28c7
60 Risk Score

Malware Insights

MITRE ATT&CK
T1059 Command and Scripting Interpreter

The critical heuristic 'OLE_XLS_FORMULA_MACRO_VIRUS' indicates this is a legacy Excel formula macro virus. The document body contains strings like 'Classic.Poppy by VicodinES', 'An Excel Formula Macro Virus (XF.Classic)', and 'Hydrocodone/APAP 10-650 For Your Computer', suggesting a malicious intent. It also contains instructions to 'Add New Workbook, Infect It, Save It As Book1.xls' and specifies a path 'C:\PROGRAM FILES\MICROSOFT OFFICE\OFFICE\xlstart\Book1.xls', indicating its self-propagation mechanism.

Heuristics 1

  • 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.

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