Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 ee5d0b6e4f099ae7…

MALICIOUS

Office (OLE) / .DOCX

185.0 KB Created: 2020-10-21 05:24:00 Authoring application: Microsoft Office Word
MD5: a2cd3209704fc4ae9d2c303267aacfd9 SHA-1: 951403e734ce0223f178a4aaaa3634f24dfab2c1 SHA-256: ee5d0b6e4f099ae7b0db0733a0eeb58498d3bc65201b26ba9e585aa42b5184ec
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 OLE_VBA_MACROS, OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC strongly indicate a macro-based dropper. The Document_Open macro and CreateObject calls suggest the execution of VBA code designed to download and run a secondary payload. The ClamAV signature 'Doc.Dropper.EmotetiBlueUpdate1020-9780531-0' further supports the Emotet family attribution.

Heuristics 7

  • ClamAV: Doc.Dropper.EmotetiBlueUpdate1020-9780531-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Dropper.EmotetiBlueUpdate1020-9780531-0
  • 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
c2d782ff362afeab0ff3ffdb3997adeebbc3bedc56fb1ea2722e18a99469723b		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 20637 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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