Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 4334cd9034034a01…

MALICIOUS

Office (OLE) / .DOCX

156.6 KB Created: 2021-01-12 17:56:00 Authoring application: Microsoft Office Word
MD5: 4b8de400162ee1c0eacb710a1ed7c02d SHA-1: 87ded1d5e4ddc4b22c0b7226562b63d0caf39a26 SHA-256: 4334cd9034034a010c16d6a513c49609e86abc21febccab0c0994b720c4c8bee
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic for Applications 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 a macro-based downloader. The ClamAV signature 'Doc.Downloader.EmotetRed02224-9938637-0' directly points to the Emotet family, known for its downloader capabilities. The embedded URL, though marked as benign, is likely a placeholder or part of a larger obfuscation scheme, and the primary threat comes from the macro's execution.

Heuristics 7

  • ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
  • 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
4eb2f1bd4f83b8d42d810ea94c6b146c20ccf37b8d5d53b11fcf53c71b96e42e		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 7385 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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