Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 364db2b2bcb220d0…

MALICIOUS

Office (OLE)

52.5 KB Created: 2009-05-06 01:21:24 Authoring application: Microsoft Excel
MD5: 89fe3ddd8bda0ff72224c652d24dc3b3 SHA-1: cbc987153178876214b0d8aa50befd4e01cd7bd2 SHA-256: 364db2b2bcb220d05fe11dbbef6c04cc3a45234a62e33a6cb39c381edef3569f
120 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 'XF.Classic'. It contains an Auto_Open macro which is designed to infect other workbooks and save them as Book1.xls in the xlstart directory, indicating an attempt to establish persistence. The embedded text also mentions 'Hydrocodone/APAP 10-650 For Your Computer', suggesting a potential lure related to pharmaceuticals.

Heuristics 3

  • 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.
  • Auto_Open macro high OLE_VBA_AUTO
    Auto_Open macro
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
670fec4b4661578525f534bcf529ac02ecce89038916df60a8cc7e7a894578e2		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2440 bytes

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