Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 0406910d3c48dbd1…

MALICIOUS

Office (OLE) / .DOCX

185.8 KB Created: 2020-10-30 04:19:00 Authoring application: Microsoft Office Word
MD5: cfa8c2b553c91f17697c76b16a4e8889 SHA-1: fcf1e72d3c035d9038c24dfd1ba12a676bbc5f5f SHA-256: 0406910d3c48dbd18d57086dcab9b4f73a8081dae9fac3010f0ae90b73c7c34f
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 a VBA macro with a Document_Open auto-execution function, indicative of malicious intent. The macro utilizes CreateObject and obfuscated code, strongly suggesting it's designed to download and execute a secondary payload. ClamAV detection further confirms its malicious nature, identifying it as Emotet.

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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