Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6fa6e20d7ec107f6…

MALICIOUS

Office (OLE) / .DOCX

181.5 KB Created: 2020-10-27 09:55:00 Authoring application: Microsoft Office Word
MD5: 37825521eb64065f53486039761614b0 SHA-1: e570280c69e356ac0bc3e2a26e54759f27aa073a SHA-256: 6fa6e20d7ec107f63284a312ab290e80286e32c497a623e5002f111ce34dee75
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1203 Exploitation for Client Execution

The sample is identified as malicious by ClamAV with the signature Doc.Downloader.Emotet-9784225-0, indicating a known Emotet downloader. The presence of a Document_Open macro and CreateObject calls strongly suggests that the VBA code is designed to execute arbitrary code, likely downloading and running a secondary payload. The obfuscated VBA script, while difficult to fully deobfuscate, contains constructs typical of Emotet's execution chains.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9784225-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9784225-0
  • 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
d266e0e433b4f1ca206b8db182ee793bd3229a389f65ad6b52e9aace0436fd0a		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15938 bytes

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