Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6b4fb14750d0e1e1…

MALICIOUS

Office (OLE) / .DOCX

204.0 KB Created: 2020-10-28 12:00:00 Authoring application: Microsoft Office Word
MD5: f99a72881bc823860657686d6ff5e7a4 SHA-1: 80dd07995daed6ded9b61ffeab71adf5b6abf063 SHA-256: 6b4fb14750d0e1e1c3df56c0f68cb7fc5a6948fe55922a91b25268df8d3d19fb
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1140 Deobfuscate/Decode Files or Information

The file is identified as malicious by ClamAV with a signature indicating Emotet. Heuristics confirm the presence of VBA macros, specifically a Document_Open macro that uses CreateObject, suggesting an attempt to execute code upon opening. The VBA script itself is heavily obfuscated, but the overall pattern and the Emotet detection strongly indicate it's designed to download and execute a secondary payload. The embedded URL is benign and likely a false positive.

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
b98bc6262a06d3ed5a9ef1ffbdbcd180eadae66998aa40fa38b234fae6ec34b7
vba-macro oletools.olevba.extract_macros (decoded VBA source) 17061 bytes