Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6eb67022c07e3f32…

MALICIOUS

Office (OLE) / .DOCX

176.3 KB Created: 2020-10-20 20:18:00 Authoring application: Microsoft Office Word
MD5: bd087ddfb48ba5ba0647e6086c7b2110 SHA-1: 31bdfeb8029bf4ab46f773ff04ad0f57d9584447 SHA-256: 6eb67022c07e3f32436afc6e89eddb132a4c5d34d733c824ab3dabf51b7c712a
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is a Microsoft Office document containing VBA macros, specifically a Document_Open macro that uses CreateObject to execute code. ClamAV detection confirms this is Emotet malware. The VBA macro code is heavily obfuscated but appears to be designed to download and execute a second-stage payload, a common Emotet behavior.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9781039-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9781039-0
  • 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
3a0ea03d0cd0ea456810f4542b81cbd362ee0487bda83ef13f410b115b67e727		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 18739 bytes

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