Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 a6f6334ad1895cd0…

MALICIOUS

Office (OLE) / .DOCX

142.1 KB Created: 2020-09-25 16:17:00 Authoring application: Microsoft Office Word
MD5: 826cd77050aeb8409cc00b9cbee17673 SHA-1: 346a0e1181a839d38cea35bea5fed0394353c587 SHA-256: a6f6334ad1895cd0887eec4d195b2adf178f0b2173ff4f862b16534906b9e232
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

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' further supports this. The ClamAV signature 'Doc.Downloader.Emotet-9768415-1' directly attributes this file to the Emotet family, known for its downloader capabilities. The document body appears to be heavily obfuscated or corrupted, preventing a clear understanding of its lure, but the macro execution is the primary threat.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9768415-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9768415-1
  • 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.
  • 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
24dc32bb0bf265d759acaab1be69526609f3f4e182439affcdf3ab2add969ffb		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 17320 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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