Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 8dfdfe78604e767f…

MALICIOUS

Office (OLE) / .DOCX

200.6 KB Created: 2020-12-22 06:39:00 Authoring application: Microsoft Office Word
MD5: 2471ad834458e5ba78f4b60435045cc0 SHA-1: a7e74f09050c7970844cbc23c763f243b3673a73 SHA-256: 8dfdfe78604e767f2b8bf6029acfcd7579b22fd72e9130d3bad158bbef39fc99
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file contains VBA macros, specifically a Document_Open auto-execution macro, which is a strong indicator of malicious intent. The ClamAV detection explicitly names this as 'Doc.Downloader.Emotet-10024800-0', and the heuristics confirm the use of CreateObject and p-code execution. The embedded URL, though benign in reputation, is likely part of the obfuscated document body and not the primary indicator. The primary function appears to be downloading and executing a second-stage payload.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-10024800-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-10024800-0
  • 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
87b72d633bd79d3d21c1246dbcc11e62ebdefc06e96dee650ec7c8e181386692
vba-macro oletools.olevba.extract_macros (decoded VBA source) 16335 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.