Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 785d6c0b148d8ddd…

MALICIOUS

Office (OLE) / .DOCX

173.0 KB Created: 2020-10-27 21:28:00 Authoring application: Microsoft Office Word
MD5: f039177cc7d2eaea6464ca0e961686a4 SHA-1: 369e9fa22994d5926819f4d391bb259c947d3823 SHA-256: 785d6c0b148d8dddf3cbb492f290386eed4b1e54c7960b26263014af5b68b783
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is identified as malicious by ClamAV with the signature 'Doc.Malware.Emotet-9784450-1'. It contains VBA macros, specifically a 'Document_Open' macro that utilizes 'CreateObject' to execute code. The obfuscated VBA script appears to construct and execute a PowerShell command, which is a common technique for downloading and executing further malicious payloads. The presence of the 'Document_Open' macro and the obfuscated VBA strongly suggests an Emotet infection vector.

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
8e0ab8816d43bd5ad9c1c0011689607d8d62edfed4931a09dce2c4955c56dadb		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 16529 bytes

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