Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 cd1e0a22c855d17c…

MALICIOUS

Office (OLE) / .DOCX

171.0 KB Created: 2020-10-27 05:39:00 Authoring application: Microsoft Office Word
MD5: ec639bd3d3f2ebcc3f77fb862f1ed778 SHA-1: 07fbbebd1fdb9fea11349917ed3ed3e00c5e1395 SHA-256: cd1e0a22c855d17c145a7577ab2ade765735a6eb768de6b3445d724824388dce
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file was detected as malicious by ClamAV with the signature 'Doc.Downloader.Emotet-9784225-0'. Static analysis revealed the presence of VBA macros, specifically a 'Document_Open' macro that utilizes 'CreateObject'. This indicates the macro is designed to execute code upon opening the document, likely to download and run a secondary payload. The heuristic firings strongly suggest a downloader functionality consistent with the Emotet family.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9784225-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9784225-0
  • 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
4ba1afe08d79409e1497ca07456a809cf749d23c9ed8d7cdfc9c80ecc4d07df6		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15890 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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