Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 7864011d471f6027…

MALICIOUS

Office (OLE) / .DOCX

164.0 KB Created: 2020-10-01 15:57:00 Authoring application: Microsoft Office Word
MD5: 4c01b2dc3dbb72da83f272a8f84a197c SHA-1: 18cfc898dcc632f23d265062daab054fa5362973 SHA-256: 7864011d471f60276a1a8f1f3d6e7578a2aa50df32a139c796cdb0ea92b311af
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 sample was detected as Emotet by ClamAV and exhibits high-severity heuristics for VBA macros, specifically a Document_Open auto-execution macro that uses CreateObject. The VBA script is heavily obfuscated but contains calls to CreateObject, indicating it likely attempts to download and execute a second-stage payload. The presence of a Document_Open macro strongly suggests this document was delivered via spearphishing.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9770197-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9770197-0
  • 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
34626713db5720b3147c8823fb8dfd0fe34a12fce4df5a0aa65f24e3eab9d078		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10368 bytes

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