Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 098897d4d3c482f9…

MALICIOUS

Office (OLE) / .DOCX

161.5 KB Created: 2020-09-14 06:44:00 Authoring application: Microsoft Office Word
MD5: d122017d99510ee53434095ffb6a4ee5 SHA-1: 6daa9d6947cf475e8285d7f0fadbaec15227e490 SHA-256: 098897d4d3c482f9c893a2e5e57a45d28eae55a43d34b828145c427ec86d8145
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is identified as malicious by ClamAV with a specific Emotet signature. High-severity heuristics indicate the presence of VBA macros, specifically a Document_Open auto-execution macro that uses CreateObject. The VBA script itself is heavily obfuscated but appears to be designed to download and execute a secondary payload, a common Emotet behavior. The presence of VBA macros points to the T1059.005 (Visual Basic) technique, and the overall delivery method is likely T1566.001 (Spearphishing Attachment).

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9762310-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9762310-0
  • 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
94aa0eae3715e5e4c777d8559a3d12a3d055d6c09f9bd5aa9415cdba60070681		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 25226 bytes

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