Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 66f6619e3ccff38b…

MALICIOUS

Office (OLE) / .DOCX

163.2 KB Created: 2020-10-01 15:57:00 Authoring application: Microsoft Office Word
MD5: eed5ee11207c7f6abe9e65eeaa064ebb SHA-1: 2662a3e2548ddb6871f6d654f87f5a1f2ffa2e44 SHA-256: 66f6619e3ccff38b9f434602c906bbbe2c810b70162405d08ad13fa3094fdc9d
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1204.002 Malicious File

The sample contains VBA macros, specifically a Document_Open auto-execution macro, which is a strong indicator of malicious intent. The macro utilizes CreateObject, a common technique for executing arbitrary code or downloading additional payloads. ClamAV detection further confirms its malicious nature, identifying it as Emotet. The obfuscated nature of the VBA code suggests an attempt to evade detection and analysis.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9770197-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9770197-0
  • 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
34626713db5720b3147c8823fb8dfd0fe34a12fce4df5a0aa65f24e3eab9d078		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10368 bytes

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