Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 0cf82bd2a650438c…

MALICIOUS

Office (OLE) / .DOCX

240.0 KB Created: 2020-10-28 10:47:00 Authoring application: Microsoft Office Word
MD5: 51b91ec3ff807312a8a2e5e7d91dabf7 SHA-1: ea2d684aa3351585539742264a4fb5dced791a60 SHA-256: 0cf82bd2a650438c7818a19c6fe0732ac0c004c56b13d070417bb70bfe3b75cc
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for Emotet. The macro uses CreateObject, indicating it's designed to execute code. The ClamAV detection explicitly names Emotet. The macro's obfuscated nature and use of CreateObject suggest it downloads and executes a second-stage payload.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9784450-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9784450-1
  • 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
46faaf06a16ada9e49d018565258705c67fc1202bb8b7fa1b6772e3ca9589e8c		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 17107 bytes

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