Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 fc4962e85e1c4648…

MALICIOUS

Office (OLE) / .DOCX

154.6 KB Created: 2020-10-16 06:31:00 Authoring application: Microsoft Office Word
MD5: ee7ed3ef04762746470a77198cf0fe3c SHA-1: cf72a88d63b248b009b3ee542a3f6bbf425509b6 SHA-256: fc4962e85e1c46484a7e17f1c028119d1aa73cdafc2ef0de401a1928a0703725
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 explicitly identifies this file as 'Doc.Downloader.Emotet-9778460-0'. High-severity heuristics confirm the presence of VBA macros, specifically a Document_Open auto-execution macro that utilizes CreateObject. This indicates the macro is designed to run automatically and likely download additional malicious content. The presence of the 'macros.bas' artifact further supports this. The document body content is heavily obfuscated and does not provide clear user-facing text, but the technical indicators strongly point to a downloader function.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9778460-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9778460-0
  • 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
d61a5c08d74b05c0be099936f48870810cfcd0fa95621c486c59e0d00fa9de51
vba-macro oletools.olevba.extract_macros (decoded VBA source) 15430 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.