Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 b74063353bf2fcca…

MALICIOUS

Office (OLE) / .DOCX

162.1 KB Created: 2020-12-29 20:50:00 Authoring application: Microsoft Office Word
MD5: 9ac4aed6bc3bf35427250ef023504727 SHA-1: d267eab2f21b6152879bd3ebbfa9ccc2f2b031a7 SHA-256: b74063353bf2fccaa3e2072c2e02dec2c760ab480f73a069277bc389ecd4c929
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic for Applications T1059.001 PowerShell T1105 Ingress Tool Transfer

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically an auto-executing Document_Open macro using CreateObject, strongly indicate a downloader. The presence of VBA macros and the detection signature 'Doc.Downloader.EmotetRed02224-9938637-0' point to the Emotet family. The macro likely downloads and executes a second-stage payload, a common Emotet delivery technique.

Heuristics 7

  • ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
  • 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
e5f9549007a41fec3f244ce297cfb2983cfeb314035104f84c750e8267247398		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 8311 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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