Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 138f306945c20e8d…

MALICIOUS

Office (OLE) / .DOCX

169.0 KB Created: 2020-10-27 18:11:00 Authoring application: Microsoft Office Word
MD5: 4b9511f67ccd53adc6dbad05dd71bd76 SHA-1: cbc8e72e4cc447d446f3571c733341e56833ff26 SHA-256: 138f306945c20e8dd813e43d036300dded2bdf97a71b4fc586989871a11a4fbd
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a common Emotet infection vector. The VBA code is heavily obfuscated but appears to use CreateObject to execute commands. The ClamAV detection explicitly names Emotet. The embedded URL is benign, but the overall behavior suggests a downloader.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9784450-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9784450-1
  • 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
89a7392bd1c1f3fe3b1a4c5e97fc737fc9e550b299f3eb72f43817655c9c1c0c		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 16436 bytes

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