Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 68578d1838025f24…

MALICIOUS

Office (OLE) / .DOCX

192.0 KB Created: 2020-10-27 20:26:00 Authoring application: Microsoft Office Word
MD5: 7fa4cd3fc8884ec09c6da87a951eb1ed SHA-1: 75cee01f8c55a2d5862dfb00a1e79574efb80cc2 SHA-256: 68578d1838025f246fa8743f767bcc85ea6ae45f38ec14610b54e8693960a3a0
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, which is a common technique for Emotet. The macros utilize CreateObject and appear to execute obfuscated PowerShell commands. The ClamAV detection explicitly names Emotet, increasing confidence in the family attribution. The primary function of the script is to download and execute a secondary payload, as indicated by the macro's structure and the presence of obfuscated commands.

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
557610d73c449d90b5a2aabccaaf95f7a5897df031246bc03a17cf1b86e2503b		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 16372 bytes

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