Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 18f9f98dab8623a8…

MALICIOUS

Office (OLE) / .DOCX

154.5 KB Created: 2020-10-16 13:32:00 Authoring application: Microsoft Office Word
MD5: 0a55ff90afb4a9b07c53f51c5086d199 SHA-1: ad1f7b4c8d0de4d04afc14dc2bc68739e79cecc5 SHA-256: 18f9f98dab8623a8b0c06b6d25747d727601b4551df382ffb88ff536f6df2762
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is identified as malicious by ClamAV with the signature Doc.Malware.Emotet-9778560-0, indicating it belongs to the Emotet family. The presence of a Document_Open VBA macro that uses CreateObject strongly suggests it's designed to execute malicious code, likely downloading a secondary payload. The VBA macro code is heavily obfuscated, but the overall behavior aligns with Emotet's typical infection chain.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9778560-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9778560-0
  • 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
80b8cf2680dee027d2b0bedfb311ad72d589d776013195663ff998d7cc50edcd		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15454 bytes

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