Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6893c63684acdfc9…

MALICIOUS

Office (OLE) / .DOCX

171.1 KB Created: 2020-10-02 08:05:00 Authoring application: Microsoft Office Word
MD5: a2f1a591876b2a8cb33337de3e0bf85a SHA-1: bbfeb762438d23ddf3d3b80aed6f7eb4ce4850a3 SHA-256: 6893c63684acdfc93e711bc5d420c6e0432faa03b52b65fd64d9d6d255f39150
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file contains VBA macros, specifically a Document_Open auto-execution macro, which is a common technique for Emotet. The macro utilizes CreateObject, a known indicator of malicious activity, and the ClamAV detection explicitly names it as an Emotet downloader. The obfuscated nature of the VBA code suggests an attempt to hide its malicious functionality, which is to download and execute a secondary payload.

Heuristics 6

  • 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.
  • 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
7051a023ff8c92545e9437031d326fa9393a821a4be28f0566a57a8f3610dd93		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10600 bytes

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