Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 f451bc339ad2ad7b…

MALICIOUS

Office (OLE) / .DOCX

143.3 KB Created: 2020-09-25 16:17:00 Authoring application: Microsoft Office Word
MD5: 41ce2c29d1cfb8cc4008ad157508444b SHA-1: 96b945045809f02f68e66f09b2a6be22129c1cdd SHA-256: f451bc339ad2ad7bb1366a798f42a7379e36daffc355ebee246f55e2621e61f9
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The critical ClamAV heuristic identifies this file as Doc.Downloader.Emotet-9768415-1. High-severity heuristics confirm the presence of VBA macros, specifically a Document_Open auto-execution macro that utilizes CreateObject. This indicates the macro is designed to download and execute a second-stage payload. The presence of VBA macros and the Emotet family attribution strongly suggest a malicious intent to compromise the user's system.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9768415-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9768415-1
  • 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
24dc32bb0bf265d759acaab1be69526609f3f4e182439affcdf3ab2add969ffb		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 17320 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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