Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 fea083de9b31b494…

MALICIOUS

Office (OLE) / .DOCX

161.2 KB Created: 2021-01-04 16:15:00 Authoring application: Microsoft Office Word
MD5: 596586050abe8bbbd852734cb0210c99 SHA-1: e3b9006f05d8403d33954c99e3e0f4c5a792b46e SHA-256: fea083de9b31b49497005d6f38cc508f73e1853f6563eb2775257b8a48b9ff42
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

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 suggests the document is designed to execute code upon opening. While the document body is obfuscated, the overall pattern aligns with Emotet's typical delivery mechanism of using macros to download and execute further stages.

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
b7c08445609ad3b9c2a0766b1423df26453c524cbf6c8eca0da53a1732c00612		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 7252 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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