Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 265a3431ecf5fe8b…

MALICIOUS

Office (OLE) / .DOCX

187.7 KB Created: 2020-09-16 12:20:00 Authoring application: Microsoft Office Word
MD5: d7b549447e15cd154406755d3066f629 SHA-1: 00123d77fe2b364226930868c7701d82d22978b3 SHA-256: 265a3431ecf5fe8b1065a6a3ac3ebff79012db1f94339b3aee00029c9c5b6423
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file contains VBA macros, specifically a Document_Open macro that utilizes CreateObject, indicating an auto-execution mechanism. ClamAV detection identifies it as Emotet. The presence of VBA macros and the Emotet family strongly suggest the document is designed to download and execute a secondary payload.

Heuristics 7

  • ClamAV: Doc.Malware.Emotet-9762404-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9762404-0
  • 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.
  • 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
49b4ebbf014fb7982286797412148a9d5a2325fbd8b23512b4e2381b987c3c86		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 21867 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.

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