Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 4b4a027043787f04…

MALICIOUS

Office (OLE) / .DOCX

159.3 KB Created: 2020-12-30 06:54:00 Authoring application: Microsoft Office Word
MD5: d1eed6e1c5ebdec7517389e5b7ab9378 SHA-1: 22f129a4543a89d4dee88831907d918cc5e40b2f SHA-256: 4b4a027043787f04e0d665a21f42640ee3d9390181dd148c20fc75e08e406c5e
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 indicate this is a malicious document. Specifically, the presence of a 'Document_Open' macro that uses 'CreateObject' strongly suggests it's designed to download and execute a second-stage payload. The ClamAV signature 'Doc.Downloader.EmotetRed02224-9938637-0' directly points to the Emotet family, known for its downloader capabilities.

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
fc9b7a9f11f0a4e47faea056f75313ff851165b484950d0cb4c39e2ab0b63bfb		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 6667 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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