Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 43e16844645b7ac6…

MALICIOUS

Office (OLE) / .DOC

156.6 KB Created: 2020-10-19 22:56:00 Authoring application: Microsoft Office Word
MD5: 1087d4465c9e31e7000ebc1bbb1b557b SHA-1: 0dbe947e9d0b4b0c2ccb6c259b662cec4eb5bd3c SHA-256: 43e16844645b7ac62a47c4b847fe5cb4fbdae95708f46c75c532f0eb9aa8ee74
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate a malicious document. The presence of the 'macros.bas' artifact further supports this. The ClamAV signature 'Doc.Downloader.Emotet-9780400-0' directly attributes this sample to the Emotet family. The document body appears to be heavily obfuscated, but the core functionality is driven by the VBA macro which likely downloads and executes a secondary payload.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9780400-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9780400-0
  • 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
defd5bb76a4b1464f2d447089b39b413d478ea68783298d2f659d17282026978
vba-macro oletools.olevba.extract_macros (decoded VBA source) 15603 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.