Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 65ca688afc9a4a35…

MALICIOUS

Office (OLE) / .DOCX

169.0 KB Created: 2020-10-27 18:11:00 Authoring application: Microsoft Office Word
MD5: a4c43a361fe1fcd09b0c61ae4866762d SHA-1: c0e6f9cb069d7c2c5222ae633f94697e4639706f SHA-256: 65ca688afc9a4a3542b3f24aec0d15a23d4ff309adc0aec528c289ed1630fee2
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, which is a strong indicator of malicious intent. The VBA code uses CreateObject to execute obfuscated commands, likely to download and run a secondary payload. The ClamAV detection explicitly names Emotet, a well-known banking trojan and downloader.

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
89a7392bd1c1f3fe3b1a4c5e97fc737fc9e550b299f3eb72f43817655c9c1c0c		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 16436 bytes

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