Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 666d05098b345bb5…

MALICIOUS

Office (OLE) / .DOCX

194.8 KB Created: 2020-09-16 06:48:00 Authoring application: Microsoft Office Word
MD5: ce066b1b02880b8399d6d172e01cf55b SHA-1: b2c41a8cc8d1abfdf33f0e42637192ad4c9a4b6f SHA-256: 666d05098b345bb5374001d7c7c2ad8c368a9116dd1baec9fea6372eed063195
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 contains VBA macros, including a Document_Open auto-execution macro, which is a common Emotet infection vector. The presence of CreateObject calls and the ClamAV detection signature 'Doc.Malware.Emotet-9762408-0' strongly indicate Emotet activity. The macro's primary function appears to be downloading and executing a second-stage payload, though the exact URL is obfuscated within the script.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9762408-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9762408-0
  • 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
df4fb732414a2f9f369567b5a31d1b266832fcbd15a8b5f56fa79c20074a71e7		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 25460 bytes

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