Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6c318a9098138d31…

MALICIOUS

Office (OLE) / .DOCX

240.0 KB Created: 2020-10-28 10:47:00 Authoring application: Microsoft Office Word
MD5: c8d3342975b531e4751a2c6c8e3b1ca3 SHA-1: 4a9f9fb282f381cfd4ac1457cf9fbfd144844e31 SHA-256: 6c318a9098138d3197e96b6f8b19f0e341154549e78ea5e0671f54f96328d340
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 macro that uses CreateObject, indicating malicious intent. ClamAV detection confirms this, identifying it as Emotet. The VBA script appears to be heavily obfuscated, but its structure suggests it attempts to download and execute a secondary payload, a common Emotet behavior. The presence of VBA macros and the Document_Open auto-execution points to a spearphishing attachment as the likely initial access vector.

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