Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 64b295d16bdacc46…

MALICIOUS

Office (OLE) / .DOCX

163.0 KB Created: 2020-10-27 13:32:00 Authoring application: Microsoft Office Word
MD5: da9c6f2e2683ef2088d45e83fe57de0d SHA-1: 62eaf7a34aa9469d11b8e30dc032b195f82f6fb6 SHA-256: 64b295d16bdacc46b3fcd5e6c94c46b078fe76819ed6f38eb394aeb82276f7c6
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The sample is identified as malicious by ClamAV with the signature 'Doc.Downloader.Emotet-9784225-0', strongly indicating the Emotet family. Heuristics confirm the presence of VBA macros, specifically a 'Document_Open' macro that utilizes 'CreateObject', a common pattern for downloading and executing secondary payloads. The obfuscated VBA script further supports this, as it likely contains logic to fetch and run additional malicious code.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9784225-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9784225-0
  • 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
aaf531f7a5bc5489efc2142934ae4807c7a8fc52a02b1483f9210c80918c01e7		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 16228 bytes

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