Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 66dee1c531293e20…

MALICIOUS

Office (OLE) / .DOCX

159.5 KB Created: 2020-12-29 13:14:00 Authoring application: Microsoft Office Word
MD5: eb28f54926ef8bcb47bf29eb7aa11e9a SHA-1: 714df371e6e149979c32d6a744191899110849f1 SHA-256: 66dee1c531293e20e26da0ffd7b7d4825876218dc4a90d537af904966fbb7db5
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for Emotet. The script attempts to open and read binary files from specific local paths, suggesting it's part of a larger payload delivery mechanism. The ClamAV detection explicitly names this as Emotet, increasing confidence in the family attribution.

Heuristics 6

  • ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
f0a26dbda37cee5a9e56f370f4faad071837ea1fd898646f154d0f1b66a66162		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 8375 bytes

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