Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 8480e663d0a05819…

MALICIOUS

Office (OLE) / .DOCX

176.0 KB Created: 2020-10-27 21:28:00 Authoring application: Microsoft Office Word
MD5: 1d617ac179d36e59d04134f29e5fe123 SHA-1: 204dc1b128d7e76856c3339b6e18e28d0454770d SHA-256: 8480e663d0a058194b6a6eb9701872e426d2039988a82de35c226dd13cf012fc
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample contains VBA macros, including a Document_Open auto-execution macro, and uses CreateObject, indicating it's designed to run malicious code. The ClamAV detection explicitly names Emotet. The VBA script is heavily obfuscated but appears to be designed to download and execute a second-stage payload, likely using PowerShell given the heuristic firings.

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
8e0ab8816d43bd5ad9c1c0011689607d8d62edfed4931a09dce2c4955c56dadb		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 16529 bytes

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