Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 67f4df16676f96c8…

MALICIOUS

Office (OLE) / .DOCX

188.5 KB Created: 2020-09-16 12:20:00 Authoring application: Microsoft Office Word
MD5: c6c0aa05da31deb67fde55d5560013a2 SHA-1: 34323a198e3caa3aafc133b0a231010a80a8c9a4 SHA-256: 67f4df16676f96c8cfa3a559c02da5273a422494f01a4d34588de943b4fe8e03
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The sample is identified as malicious by ClamAV with the signature 'Doc.Malware.Emotet-9762404-0', indicating a high likelihood of the Emotet family. Static analysis reveals the presence of VBA macros, specifically a 'Document_Open' macro that utilizes 'CreateObject' for execution. This suggests the macro is designed to download and execute a secondary payload, a common Emotet tactic. The obfuscated script content and the nature of the heuristics strongly support this conclusion.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9762404-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9762404-0
  • 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
49b4ebbf014fb7982286797412148a9d5a2325fbd8b23512b4e2381b987c3c86
vba-macro oletools.olevba.extract_macros (decoded VBA source) 21867 bytes