Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 2ea760060d8e71ff…

MALICIOUS

Office (OLE) / .DOCX

200.0 KB Created: 2020-10-21 21:54:00 Authoring application: Microsoft Office Word
MD5: bdb0921ec0493d0d93dfa8b3d330e1c0 SHA-1: c0e88aa371e61f22dc521e3bcea8964baf6fe093 SHA-256: 2ea760060d8e71ffce91d15fe31085ec999ed299d9d13e35dcd0544f8d361b59
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File T1105 Ingress Tool Transfer

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, indicate a malicious dropper. The presence of a VBA macro named 'macros.bas' further supports this. The macro is designed to download and execute a second-stage payload, as suggested by the 'Doc.Dropper' classification. The document body is obfuscated and unreadable, but the technical indicators are clear.

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
6c391991df0deaab71158b56a42728fa6cc0fa0f9cdacd00457125ab6d1e3e9d		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 23148 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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