Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 34754f71c9d37d96…

MALICIOUS

Office (OLE) / .DOCX

209.0 KB Created: 2020-12-22 21:50:00 Authoring application: Microsoft Office Word
MD5: fe0a44817c802dc4020157216af720f2 SHA-1: 7ab10351ff4ab7140881f0853fa735453c415622 SHA-256: 34754f71c9d37d965839231746871e3afcd7cc6d4a4515dffcf6fff4c8e7b739
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File T1105 Ingress Tool Transfer

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate a downloader. The presence of a VBA macro named 'macros.bas' further supports this. The ClamAV signature 'Doc.Downloader.EmotetRed02224-9938637-0' directly points to the Emotet family and its downloader capabilities. The document body, though heavily obfuscated, contains strings that appear to be part of obfuscated VBA code, reinforcing the malicious macro 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
b559ca2a4b6431779fe74d7481a6f916cab3c2b891432c5ee8c97f5a35ecea25		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15388 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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