Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6351168d14cfa037…

MALICIOUS

Office (OLE) / .DOCX

189.7 KB Created: 2020-09-21 14:08:00 Authoring application: Microsoft Office Word
MD5: 9ca84c781d6722c02a250ce9258cb650 SHA-1: 48c5c893a427b99e4b352e4668aa589829ed905c SHA-256: 6351168d14cfa0372803482062882590c98d717dc4f4eb2541fe3a154e8dc40f
242 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample contains VBA macros, specifically a Document_Open macro, which is a common technique for Emotet. The macro uses CreateObject and GetObject calls, and the p-code indicates auto-execution with these functions. The ClamAV detection name further supports the Emotet family attribution. The VBA code is heavily obfuscated, but its presence and execution via Document_Open strongly suggest it's designed to download and execute a secondary payload.

Heuristics 7

  • ClamAV: Doc.Malware.Emotet-9765432-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9765432-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • GetObject call high OLE_VBA_GETOBJ
    GetObject 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
5f8ddf3f75befd9059f3326eb9e354f14c2179c2257f61708817109610baf98e		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 19074 bytes

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