Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 8724edb2ff5cb242…

MALICIOUS

Office (OLE)

154.5 KB Created: 1996-12-17 01:32:42 Authoring application: Microsoft Excel First seen: 2015-09-24
MD5: 6a1e98de88557f4a96012d3e655e5782 SHA-1: 8754bda16005db7813af139ef0b3acb5cec86316 SHA-256: 8724edb2ff5cb24260cf3be4d7c6cce57365d67bcd6ffb2b5a7a1368cdcad3ec
80 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The file contains legacy Excel 4.0 (XLM) macro sheet markers, indicating the presence of macro code. The heuristics identify this as a potential Excel Formula Macro Virus, specifically mentioning 'Poppy by VicodinES' and 'The Narkotic Network'. The document body contains strings related to macro infection and persistence, including a path that suggests it attempts to infect the Excel startup directory.

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.

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