Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 e4cd2a6cd5ddb663…

MALICIOUS

Office (OLE) / .DOCX

288.3 KB Created: 2020-10-29 11:27:00 Authoring application: Microsoft Office Word
MD5: ec20d8ff8b93e479ac319bfa129d1e9e SHA-1: cf36c47832b1cd727f737be848a687992127a492 SHA-256: e4cd2a6cd5ddb6634b2da0db1a52078c670b59d8bc62fba342adc38d28bec6b3
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The sample was detected by ClamAV as 'Doc.Downloader.EmotetRed02224-9938637-0', indicating a downloader. Critical heuristics confirm the presence of VBA macros, specifically a Document_Open auto-execution macro that uses CreateObject. This strongly suggests the macro is designed to download and execute a secondary payload. The document body content is heavily obfuscated and does not provide clear user-facing text, but the technical indicators point to a malicious downloader.

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
898dac0a9fbba39aaf7a14ff7100c80bc81af6e0cb0f2cf6d397c84d46877d50		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 18710 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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