Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 9bd0e68a4d1b0b3f…

MALICIOUS

Office (OLE) / .DOCX

175.5 KB Created: 2020-10-27 21:28:00 Authoring application: Microsoft Office Word
MD5: e40f90b6a5eff0784be173c50ae3921b SHA-1: 632bdc90975d755e98f59cd9955042b579a811b4 SHA-256: 9bd0e68a4d1b0b3fa07441324dbc77574a04628efd26d801f15105057255e5fc
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate malicious intent. The presence of a VBA macro in the 'macros.bas' file, combined with the 'OLE_VBA_PCODE_AUTOEXEC_EXEC' firing, suggests the macro is designed to run automatically and execute code. While the document body text is heavily obfuscated, the overall pattern aligns with Emotet's typical delivery mechanism of using macro-enabled documents to download and execute further stages.

Heuristics 7

  • 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.
  • Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.