Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 076ae7a0e376d0b0…

MALICIOUS

Office (OLE) / .DOCX

204.0 KB Created: 2020-10-28 12:00:00 Authoring application: Microsoft Office Word
MD5: d3f3524d0d640d572d5ac6f2d3bbf4ea SHA-1: c5aef0bb3a97161b47da7607eb9d8fcda7be49e9 SHA-256: 076ae7a0e376d0b0b80a251de193909b815b7427ec037911f37c72fb4db10c14
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a strong indicator of malicious intent. The ClamAV detection explicitly names Emotet, a known malware family. The VBA script is heavily obfuscated but its structure and the presence of CreateObject suggest it is designed to download and execute a secondary payload, likely leveraging the embedded URL.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9784450-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9784450-1
  • 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
b98bc6262a06d3ed5a9ef1ffbdbcd180eadae66998aa40fa38b234fae6ec34b7		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 17061 bytes

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