Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 f963019244354ab0…

MALICIOUS

Office (OLE) / .DOCX

167.6 KB Created: 2020-10-20 13:16:00 Authoring application: Microsoft Office Word
MD5: 30aa56df83068a9f91f90786be2fd480 SHA-1: be184a453865c7fbe5cf13dae0c6ce6dcf78350d SHA-256: f963019244354ab00838230093b10128229a1a601fa315fff61bed4bd88f2f59
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1566.001 Spearphishing Attachment

The critical ClamAV detection and high-severity heuristics for OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC strongly indicate malicious VBA macro activity. The Document_Open macro is designed to execute code via CreateObject, a common technique for downloading and running secondary payloads. The ClamAV signature specifically names this as an Emotet downloader.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9780849-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9780849-0
  • 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
db983f63a3f14ba21ce878505faeebf248407a72c9ac689ac190379ed7abf96d
vba-macro oletools.olevba.extract_macros (decoded VBA source) 17571 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.