Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 665ca5b6b8e24008…

MALICIOUS

Office (OLE) / .DOCX

186.5 KB Created: 2020-10-30 04:19:00 Authoring application: Microsoft Office Word
MD5: 226859c63559875058106dc552ca2f63 SHA-1: 10994af8a4560d33fecb2cfe7685eb956a61084c SHA-256: 665ca5b6b8e24008d94bd73e8fc3862a558d2074f35ab952eb016e2ecfb2c125
202 Risk Score

Malware Insights

Emotet · confidence 90%

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

The file is identified as malicious by ClamAV with a specific Emotet signature. Static analysis reveals the presence of VBA macros, including a Document_Open auto-execution macro and CreateObject calls, indicative of Emotet's typical behavior. The obfuscated VBA script strongly suggests it's designed to download and execute a secondary payload, a common tactic for Emotet to establish a foothold and spread.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9785300-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9785300-0
  • 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
f7e154fbc1687723523f4f201e3a1591c84897657fe14056a01af3060d347cbe		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 17509 bytes

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