Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 312691c3e5c6b2bf…

MALICIOUS

Office (OLE) / .DOCX

163.6 KB Created: 2020-10-20 12:48:00 Authoring application: Microsoft Office Word
MD5: e1143302e800b521bf84c31657a0988c SHA-1: 0b34f10ac26f2aa62f14057f84e6219aea418386 SHA-256: 312691c3e5c6b2bf2bd50d27f73bf47e5ac8c9d5cc25a672ee43ae578dae49a8
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment 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 a malicious downloader. The presence of the 'Emotet' family in the ClamAV signature further supports this classification. The VBA macro is designed to execute code upon opening the document, likely to download and run a secondary payload, which is a common Emotet delivery technique.

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
a791bb7ba5242dbbc595d3114d3368d96d9feda91ba232c650f7097f210ce92c
vba-macro oletools.olevba.extract_macros (decoded VBA source) 17778 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.