Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 db7ae2115e8f4c39…

MALICIOUS

Office (OLE) / .DOCX

153.9 KB Created: 2020-09-23 06:50:00 Authoring application: Microsoft Office Word
MD5: 0278b808eb3006efd0e54f3de96de2e8 SHA-1: 0877910095133a6c44023beeb27bea24048c50a8 SHA-256: db7ae2115e8f4c391b5e610794feb7fddaac8298aa18324331fe13a6f92c00d2
280 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1105 Ingress Tool Transfer

The file was detected as malicious by ClamAV with the signature 'Doc.Downloader.Emotet-9765526-0', indicating it is likely an Emotet downloader. Heuristics confirm the presence of VBA macros, specifically a Document_Open auto-exec macro that uses CreateObject and GetObject calls. These are common techniques for downloading and executing additional payloads. No document body text was available for analysis, but the presence of VBA macros and the ClamAV signature strongly suggest a malicious downloader.

Heuristics 8

  • ClamAV: Doc.Downloader.Emotet-9765526-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9765526-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • GetObject call high OLE_VBA_GETOBJ
    GetObject 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
b9cffb0e79babc4a34c180b4e03d44a772a85b301d6c58e52fd57eb504592664		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 19838 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.

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