Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 d715bda5d2e632bf…

MALICIOUS

Office (OLE) / .DOCX

151.5 KB Created: 2020-10-01 07:06:00 Authoring application: Microsoft Office Word
MD5: 2f6ee85bcd61f234991d47ef38ebb01a SHA-1: 01d50fb443bfdbbb216b1cd502af1c961d72068e SHA-256: d715bda5d2e632bfb25580ae2bdb209385eb4a96696b866967545a958542c3d8
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate malicious intent. The presence of a VBA macro named 'macros.bas' further supports this. The ClamAV signature 'Doc.Malware.Emotet-9770156-0' directly attributes this file to the Emotet family. The primary attack pattern involves leveraging VBA to execute arbitrary code, likely to download and run additional malware.

Heuristics 7

  • ClamAV: Doc.Malware.Emotet-9770156-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9770156-0
  • 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
edcbc228f949e002f32423fcc2aae89e10357cf04ecc19d5df06e1df6cb28a25
vba-macro oletools.olevba.extract_macros (decoded VBA source) 10406 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.