Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6e31c3ec9f97261c…

MALICIOUS

Office (OLE) / .DOCX

200.0 KB Created: 2020-10-21 21:54:00 Authoring application: Microsoft Office Word
MD5: 6f8d61d9664e06821c477dc728aea770 SHA-1: 574ef00ac6ebe91c498f0bc5b8ec40c17798a9db SHA-256: 6e31c3ec9f97261ccaa0df6af6c8492d10d748514620ec9c351beb1436269e0b
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 contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for malware delivery. The ClamAV detection name 'Doc.Dropper.EmotetBlueUpdate1020-9780531-0' strongly suggests the Emotet family. The VBA code is heavily obfuscated, indicating an attempt to deobfuscate and execute a payload, likely from a URL or embedded resource.

Heuristics 6

  • ClamAV: Doc.Dropper.EmotetiBlueUpdate1020-9780531-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Dropper.EmotetiBlueUpdate1020-9780531-0
  • 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
6c391991df0deaab71158b56a42728fa6cc0fa0f9cdacd00457125ab6d1e3e9d		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 23148 bytes

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