Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 6f97e477cfcbafb0…

MALICIOUS

Office (OLE)

1.50 MB Created: 1999-01-04 16:37:18 Authoring application: Microsoft Excel First seen: 2015-09-15
MD5: 0e648cd643deb7f5c33b883056cd8960 SHA-1: 3571510ca42a727cb9324144c7c600b5e6b7f4ab SHA-256: 6f97e477cfcbafb027ecbb2f7d86114c152457e8e0e728442ea4668f244133aa
60 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The sample is identified as a legacy Excel formula macro virus, specifically 'Poppy by VicodinES' and 'Narkotic Network'. The document body, disguised as a construction cost estimate, contains embedded text related to infecting new workbooks and saving them as 'Book1.xls' or 'ÿÿÿÿÿ.xls' in the 'xlstart' directory, indicating an attempt to establish persistence or spread.

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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