Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 39c75ae4bc33f6c8…

MALICIOUS

Office (OLE) / .DOCX

153.8 KB Created: 2020-10-19 09:55:00 Authoring application: Microsoft Office Word
MD5: 46c8ad786bd4a2a1a56fc6525e4629c0 SHA-1: 6829bc4f20a03a58b00272cdf30a3b809b6dc4df SHA-256: 39c75ae4bc33f6c874f3021134591a8f123502dfc28e57ffc746ec33aa7a1785
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically an auto-executing Document_Open macro using CreateObject, strongly indicate Emotet. The obfuscated document body text, containing strings like "PowerShell" and "ENCODE", suggests a lure to encourage macro execution. The Document_Open macro likely downloads and executes a second-stage payload, a common Emotet behavior.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9780434-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9780434-0
  • 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
1480f6f3dc12ae5544443e21682a29de409fc914bcdbfb39f5c72e71174c3bfb		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15487 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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