Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 1ec84df00d36a347…

MALICIOUS

Office (OLE)

163.5 KB Created: 2014-05-14 09:09:41 Authoring application: Microsoft Excel First seen: 2015-09-20
MD5: 148ff91fb042a80d7c4df925ce35a5f0 SHA-1: 31c2a82e02f55fccdb9618cb6f4c10b7b5f7f0fc SHA-256: 1ec84df00d36a347bc8025793c04f6a43f1689a1d15811bc4a52bbcd0265c71d
80 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The critical heuristic firing indicates the presence of a legacy Excel Formula Macro Virus, specifically mentioning 'Poppy by VicodinES' and 'Narkotic Network'. The document body contains what appears to be educational task data, likely a lure. The presence of XLM macros suggests an attempt to infect other workbooks or execute arbitrary code, potentially delivering a secondary payload.

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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