Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 865853827735f260…

MALICIOUS

Office (OLE) / .DOCX

201.8 KB Created: 2020-09-25 06:51:00 Authoring application: Microsoft Office Word
MD5: 9cb0c067283eda98557209d9faed9214 SHA-1: 61fe6b33af6229c6b82279dd16e6d86cd2526e80 SHA-256: 865853827735f2600f0cf925ec19dd70fe6cd97980a8dc93e8b28d1506fea2c3
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file contains VBA macros, including a Document_Open auto-execution macro that uses CreateObject, indicating malicious intent. ClamAV detection confirms this as Doc.Downloader.Emotet. The obfuscated VBA script likely attempts to download and execute a second-stage payload, potentially using PowerShell based on the embedded string fragments.

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
d802c65eb8f9df036cf46e9408744e30c5d95dae54b582b9f65ecb84ecb28fa8		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 25261 bytes

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