Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 a2bdc474a5f371ca…

MALICIOUS

Office (OLE) / .DOCX

163.0 KB Created: 2020-10-01 15:57:00 Authoring application: Microsoft Office Word
MD5: 370096e8e7bc844f13f45cfb7db90ee7 SHA-1: 24e1a837d29a0423c582d969a89589ef617de124 SHA-256: a2bdc474a5f371cab83004e856bcabe60d9eab2ea3c70babfb04a5d7c4d126fa
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1566.001 Spearphishing Attachment 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 VBA macros, combined with the ClamAV signature, points to the Emotet family. The primary function appears to be the execution of VBA code that likely downloads and executes a secondary payload.

Heuristics 7

  • ClamAV: Doc.Malware.Emotet-9770197-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9770197-0
  • 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
34626713db5720b3147c8823fb8dfd0fe34a12fce4df5a0aa65f24e3eab9d078		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10368 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 53 Chr/ChrW string-construction calls. Carved macro source contains an auto-exec entry point and execution/download terms.

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