Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6fbded5702d0539f…

MALICIOUS

Office (OLE) / .DOCX

158.8 KB Created: 2020-10-20 04:30:00 Authoring application: Microsoft Office Word
MD5: e4299d142994a58dde226f6acf49d970 SHA-1: 4749d0411ba971751842f547c2ebd81ef1c4bba3 SHA-256: 6fbded5702d0539f9849e8daf7a3c5d017e03faefa23d711bb82b15c7250ad8f
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The file is identified as malicious by ClamAV with a specific detection name indicating it's a downloader for Emotet. High-severity heuristics confirm the presence of VBA macros, specifically a Document_Open auto-execution macro that uses CreateObject, a common technique for executing payloads. The obfuscated VBA script likely attempts to download and execute a second-stage payload, aligning with Emotet's typical behavior.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9780400-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9780400-0
  • 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
bec182db065394791f950a49edfb2bfa66cb6693b62758841681c782964c8b6d		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15615 bytes

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