Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 187546f311db0a23…

MALICIOUS

Office (OLE) / .DOCX

194.2 KB Created: 2020-09-22 04:18:00 Authoring application: Microsoft Office Word
MD5: 7dacc7dc6c25bfbf8c872cfcb5edf9c3 SHA-1: 1fdda0d5ca9d9110f6ddc86b0020a2f21530b2e6 SHA-256: 187546f311db0a23c3136010257a68fffa3ad1e4a64d8ed3d2ebb56f65c14fde
242 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1059 Command and Scripting Interpreter

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for Emotet. The heuristics indicate the use of CreateObject and GetObject, suggesting the macro is designed to download and execute a secondary payload. The ClamAV detection explicitly names Emotet, further supporting the family attribution.

Heuristics 7

  • ClamAV: Doc.Malware.Emotet-9764756-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9764756-0
  • 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
3b0af88f4dd9c23a17bbdbbca50e89a637a2364695c54b84b34b6c26baade961		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 19032 bytes

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