Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 50bef11268e4a6c5…

MALICIOUS

Office (OLE) / .DOCX

134.3 KB Created: 2020-09-28 07:04:00 Authoring application: Microsoft Office Word
MD5: ef41eafc10e25e64011afb31718a91c5 SHA-1: 542fb692929a777b23373e1c7a8602e28b0d8a0a SHA-256: 50bef11268e4a6c5d13e83800177e1957fad3d991f8ceea729166bac747f69fa
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 file named 'macros.bas' further supports this. The ClamAV signature 'Doc.Downloader.Emotet-9768657-0' directly attributes this sample to the Emotet family, which is known for its downloader capabilities. The document body content appears to be obfuscated or corrupted, providing no direct clues to the lure.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9768657-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9768657-0
  • 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
e75df2f1d58eb5949c0678a2356db3178c4d0bfd05af2a59d3cebacf3557baf1		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 6244 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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