Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 ff954aabba6a98a9…

MALICIOUS

Office (OLE) / .DOCX

172.5 KB Created: 2020-10-26 07:07:00 Authoring application: Microsoft Office Word
MD5: 09d8e5fb12d478a1fd4db1fe4bb31560 SHA-1: 8706d2c7ee30067f406f64fb1c8654a7de6ea073 SHA-256: ff954aabba6a98a93a3e714a0043dc95e352d61ac86dc2b921ddcf1b5b7b2bb2
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 within the document, identified as macros.bas, suggests it is designed to download and execute a secondary payload. The ClamAV signature 'Doc.Downloader.Emotet-9783942-0' directly attributes this file to the Emotet family, known for its downloader capabilities.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9783942-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9783942-0
  • 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
c68bd7af3cf9a50b88bbe135228cd5b393b6d0143e5a959d6b377f6063b17e65		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15733 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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