Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 7280c3e2b153e05d…

MALICIOUS

Office (OLE) / .DOCX

188.8 KB Created: 2020-09-16 12:20:00 Authoring application: Microsoft Office Word
MD5: 145e8f2ffe3225d9620b9d00599ff9d0 SHA-1: 026ac7a4725651bde1c0d1759797ea05721d8089 SHA-256: 7280c3e2b153e05dfa4498796b2c2b3b7958063c0a0d85c59e7d46bf3ef42053
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample is a Microsoft Office document containing a VBA macro that is automatically executed when the document is opened (Document_Open). The macro utilizes CreateObject and appears to be designed to download and execute a secondary payload, consistent with Emotet's typical behavior. The ClamAV detection also explicitly names Emotet.

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

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