Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 01fda3b854d03d84…

MALICIOUS

Office (OLE) / .DOCX

162.6 KB Created: 2020-09-25 11:29:00 Authoring application: Microsoft Office Word
MD5: 682e0afb4402ed37cfae175d36c6b133 SHA-1: 85f75237e6640b526262ef014460bd4cc8391d28 SHA-256: 01fda3b854d03d84f18a3d9f4a43f0e2eab495e13c2732b9632117fcfba40f3d
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1059 Command and Scripting Interpreter

The sample contains VBA macros, specifically a Document_Open macro, which is a common technique for Emotet. The macro is designed to execute a payload, likely a downloader, as indicated by the ClamAV detection name 'Doc.Downloader.Emotet-9767804-1'. The obfuscated script attempts to construct and execute commands, but the exact payload URL is not directly visible due to heavy obfuscation.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9767804-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9767804-1
  • 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.
  • 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
426aca538f654441d66e245a00bfc928dacf37832bbf946df52799fa3650ecb1		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 24489 bytes

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