Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 0de43abd8d4f8877…

MALICIOUS

Office (OLE) / .DOCX

174.5 KB Created: 2020-10-27 21:28:00 Authoring application: Microsoft Office Word
MD5: a366df3195267ed652eec64a78e38d9d SHA-1: ea69b706a109e3e3a50feda6e9fb95f658f62e0c SHA-256: 0de43abd8d4f8877ff865f52486cf10fdc2c9c8c627562969e32f6b00ebb36f5
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file is identified as malicious by ClamAV with a specific Emotet signature. High-severity heuristics indicate the presence of VBA macros, specifically a Document_Open macro that uses CreateObject to execute obfuscated code. The VBA script itself is heavily obfuscated but appears to be designed to download and execute a second-stage payload, likely leveraging PowerShell based on common Emotet techniques. The embedded URL is benign.

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
8e0ab8816d43bd5ad9c1c0011689607d8d62edfed4931a09dce2c4955c56dadb		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 16529 bytes

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