Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 f652b7523c7ad024…

MALICIOUS

Office (OLE) / .DOCX

157.9 KB Created: 2020-09-23 09:30:00 Authoring application: Microsoft Office Word
MD5: 8026edbce695d5b28c12c105b7701caa SHA-1: 3369c2887300295faf64a7971ff05c4b432b2cbc SHA-256: f652b7523c7ad02479f3dddd2dc9ba0382cc5c9c228ef8d2be73fb97e8a2c23b
280 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 OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_GETOBJ strongly indicate a macro-based downloader. The Document_Open macro is designed to execute VBA code, likely to download and execute a second-stage payload. The ClamAV signature specifically identifies this as Emotet.

Heuristics 8

  • ClamAV: Doc.Downloader.Emotet-9765530-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9765530-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • GetObject call high OLE_VBA_GETOBJ
    GetObject 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
f2279a4d422668b89c293cd032386976cc753a5ff4104c672bc17e53928a662a
vba-macro oletools.olevba.extract_macros (decoded VBA source) 20002 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.