Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6d3d32f94e8c4963…

MALICIOUS

Office (OLE) / .DOCX

197.2 KB Created: 2020-09-24 13:34:00 Authoring application: Microsoft Office Word
MD5: ede01e38b308bd23c693339b34a81f38 SHA-1: 97b1b3d1821a5d49baacbd56cf9511ca7c41be2f SHA-256: 6d3d32f94e8c49634c93ac96bf0b6ef4bb3dc49696aef545f990d19752a027e5
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file is a Microsoft Office document containing VBA macros, specifically triggering on Document_Open. Heuristics indicate the use of CreateObject and p-code execution, consistent with malicious macro behavior. The ClamAV detection name 'Doc.Downloader.EmotetRed02224-9938637-0' strongly suggests the Emotet family and a downloader function. The VBA script itself is heavily obfuscated but appears to construct and execute PowerShell commands, a common tactic for Emotet to download further stages.

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
a837a74c15cb3b2b06d70805c30f06a3d350fde6faccbab7be73edc42a69bb80		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 25402 bytes

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