Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 11fc9d76f9ab6d54…

MALICIOUS

Office (OLE) / .DOCX

199.2 KB Created: 2020-09-16 07:09:00 Authoring application: Microsoft Office Word
MD5: 5b02d9d82545553fe7cecd11451c2d8a SHA-1: b23aa3906a5d7088c3ac3724ddf18bea0834dc3d SHA-256: 11fc9d76f9ab6d54ffc389ea4c4b2445ab3d2c00935ea19c38de48d2e29010c6
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file contains VBA macros, specifically a Document_Open macro that utilizes CreateObject, indicating an attempt to execute code automatically. ClamAV detection explicitly names this as Emotet. The VBA code appears to be obfuscated, but the presence of auto-execution macros and the Emotet family attribution strongly suggest it's designed to download and execute a secondary payload, likely using PowerShell.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9762400-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9762400-0
  • 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.
  • 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
7c58c4b09e28ace19eb6117ae115fc2b8ebe509e6804a2a36cc1706dcd36fda5		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 25351 bytes

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