Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 be8eff5238b1b4c5…

MALICIOUS

Office (OLE) / .DOCX

170.8 KB Created: 2020-09-22 18:42:00 Authoring application: Microsoft Office Word
MD5: 873729a39ff427f4cb5f25e8811551ba SHA-1: 80d0f4cf0b8cc82ae3e9f722bf789a9fb2911505 SHA-256: be8eff5238b1b4c55eaf6bf5399d71b18bc093dbf2344c41e86f192173e1a5ef
280 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-9765458-0' directly attributes this file to the Emotet family, which is known for its downloader capabilities. The script likely downloads and executes a second-stage payload.

Heuristics 8

  • ClamAV: Doc.Downloader.Emotet-9765458-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9765458-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • GetObject call high OLE_VBA_GETOBJ
    GetObject 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
4c1d45ab400998e9849e03fb488749a88ec1375f45fc179ad034e6ee3d25ecfd		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 21065 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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