Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 3f046626d961cb82…

MALICIOUS

Office (OLE) / .DOCX

153.1 KB Created: 2020-10-19 12:20:00 Authoring application: Microsoft Office Word
MD5: 4eff7cd3f21819752b5bde3d35be1ce9 SHA-1: abcfd0edd1246f35b713711580b794c7d1a4da18 SHA-256: 3f046626d961cb82a07beec8983b8b401e9998ad3bcf832856f6c562ab1f7852
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate a malicious macro downloader. The presence of a VBA macro in the 'macros.bas' file, combined with the Emotet family detection, suggests this document is designed to execute malicious code. The obfuscated document body content, while not directly readable, likely serves as a lure to encourage macro execution.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9780400-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9780400-0
  • 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
1b934c7a6a945d183f556fc460816db0116e14a6233b4c84dca18770500f607e		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15515 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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