Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 9441c64607ce7496…

MALICIOUS

Office (OLE) / .DOCX

101.9 KB Created: 2020-09-29 17:52:00 Authoring application: Microsoft Office Word
MD5: e645a531d75ce7b38128514960c1e5df SHA-1: b9390d4cb641cf1e74fcf7585bad5a010db8e6e3 SHA-256: 9441c64607ce749604dff7e3f2080dc43eff5cf59ab51c17e8e276ae8f9a24d6
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The critical ClamAV detection and high-severity heuristics for VBA macros, including Document_Open auto-execution and CreateObject calls, strongly indicate a malicious downloader. The presence of a VBA macro named 'macros.bas' further supports this. The document body's obfuscated content does not provide direct clues, but the overall pattern is consistent with Emotet's typical delivery mechanism.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9769356-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9769356-0
  • 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
77f0fc2bd0d5c985be4d4cb3501afb191ffadc98be204ef2c40c091585c5d90a		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10395 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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