Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 5704de861cd887e6…

MALICIOUS

Office (OLE) / .DOCX

154.5 KB Created: 2020-10-19 08:55:00 Authoring application: Microsoft Office Word
MD5: 0ae629ed54861663c884c54f6fbf7a08 SHA-1: 2d2f343dc27c9a2604e7f93549a013f8d8966ac2 SHA-256: 5704de861cd887e620c5d4091b7e0281b1a3936c0d3d1e60403dd76a755fad6f
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate a malicious document. The presence of a VBA macro named 'macros.bas' and the ClamAV signature 'Doc.Downloader.Emotet-9780414-0' point to the Emotet family. The document body, though heavily obfuscated, likely serves as a lure to enable macros, which then execute the malicious VBA code.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9780414-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9780414-0
  • 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.
  • Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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
e05e00e5695f255205cdf8f3c815d1b7180582c720372a44ffa69b0bf5e004ae		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15558 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.

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