Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 0ee1ce81f79f4e12…

MALICIOUS

Office (OLE) / .DOCX

203.5 KB Created: 2020-10-28 12:00:00 Authoring application: Microsoft Office Word
MD5: 8d104a1887a9bb07685055d2b1092072 SHA-1: 0e7e856ef9be0c7f0c957e0a003ed127b28ec767 SHA-256: 0ee1ce81f79f4e12be6fc393adbbad681b95b1e0254796e73027c7c273beb515
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1140 Deobfuscate/Decode Files or Information

The sample was detected 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 constructing strings and executing code, consistent with a downloader or droppper functionality. The ClamAV signature strongly suggests the Emotet family.

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
b98bc6262a06d3ed5a9ef1ffbdbcd180eadae66998aa40fa38b234fae6ec34b7		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 17061 bytes

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