Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 cc893eeed02465c7…

MALICIOUS

Office (OLE) / .DOCX

173.0 KB Created: 2020-10-26 07:07:00 Authoring application: Microsoft Office Word
MD5: 6a27430d01d89af47add3ea754192e53 SHA-1: ffb680f39aecf84006b15e76691eb0da6128e67e SHA-256: cc893eeed02465c72ddc6837a915957f91f098a3ab183b0e72629bb49c2a3a11
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate malicious intent. The presence of a VBA macro named 'macros.bas' and the detection signature 'Doc.Downloader.Emotet-9783942-0' are consistent with Emotet's known behavior of downloading and executing further stages. The obfuscated document body text does not provide direct clues to the lure, but the technical indicators are clear.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9783942-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9783942-0
  • 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
c68bd7af3cf9a50b88bbe135228cd5b393b6d0143e5a959d6b377f6063b17e65		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15733 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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