Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 724c5d4bb1366a1b…

MALICIOUS

Office (OLE) / .DOC

176.4 KB Created: 2020-10-20 15:27:00 Authoring application: Microsoft Office Word
MD5: 416118f4538278ec35116cb06b8ba81b SHA-1: 03d8020a4aaad3bbbacc252de9d3e24b1f4ddcfe SHA-256: 724c5d4bb1366a1bfd8d8982ea39bc45e5943710760201cb77a7a126a4ebc56b
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file is a Microsoft Word document containing VBA macros, specifically a Document_Open macro that utilizes CreateObject to execute code. ClamAV identifies this as Emotet. The VBA code is heavily obfuscated but the presence of a Document_Open macro and CreateObject calls strongly suggests it's designed to download and execute a secondary payload, a common Emotet tactic. The heuristic firings and ClamAV signature directly point to Emotet.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9781039-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9781039-0
  • 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
4ae9206e4b66c21807f47ed3b7c5982ab29db0a36a53a5da071ac077a7c0588d		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 18780 bytes

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