Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 7862369f401d84f4…

MALICIOUS

Office (OLE) / .DOCX

174.0 KB Created: 2020-10-27 21:28:00 Authoring application: Microsoft Office Word
MD5: 7ef879ca13a4fba3921dbc166ad96d8b SHA-1: 6e9c44218e8a1803e9b2c3817df089c4bdd5cf2e SHA-256: 7862369f401d84f41b94003a00d8fe6b36e51c435f35a8e996138a0f52fa1893
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample contains a critical ClamAV detection for Emotet and high-severity heuristics indicating the presence of a Document_Open VBA macro that uses CreateObject to execute code. The VBA macro is heavily obfuscated but appears to be designed to execute PowerShell commands, a common tactic for Emotet to download and run additional malicious content. The presence of the Document_Open macro and the Emotet detection strongly suggest this is a malicious document intended for phishing.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9784450-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9784450-1
  • 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
8e0ab8816d43bd5ad9c1c0011689607d8d62edfed4931a09dce2c4955c56dadb
vba-macro oletools.olevba.extract_macros (decoded VBA source) 16529 bytes