Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 e0ba3e59dc27ee77…

MALICIOUS

Office (OLE) / .DOCX

154.0 KB Created: 2020-10-19 20:10:00 Authoring application: Microsoft Office Word
MD5: 78c4f35dd6e7ab58fcb9466ff86beea1 SHA-1: 9c23bf390397ef25b823109a6bf8448da14f0254 SHA-256: e0ba3e59dc27ee7783d5cbf288d39d0c0587f3f63f3a7806fd5d2cec5d2e9ed0
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic 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 file as 'Doc.Downloader.Emotet-9780400-0', confirming its role as a downloader for the Emotet family. The macro's execution of CreateObject and p-code auto-execution further supports the downloader functionality, likely to fetch and run a secondary payload. The document body appears to be obfuscated or corrupted, providing no direct user-facing lure.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9780400-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9780400-0
  • 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
2d3ce3834af78f24fa31a527ad1e694aefe01bd9c74b26ec94954a5af657ad56		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15599 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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