Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 1973d2f06ae252b0…

MALICIOUS

Office (OLE) / .DOCX

187.8 KB Created: 2020-09-29 13:18:00 Authoring application: Microsoft Office Word
MD5: 3f05f351658449638018911f079ce3df SHA-1: 214b7fd2ba110bef08461fc43be21855c0d1a135 SHA-256: 1973d2f06ae252b0c09f5f6376f2ccff3a8149c4b660eed973baab1921e80dc7
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample contains a Document_Open VBA macro that is automatically executed upon opening. This macro utilizes CreateObject and obfuscated code, strongly indicating its purpose is to download and execute a secondary payload. The ClamAV detection name 'Doc.Malware.Emotet-9769343-0' further supports the Emotet family attribution.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9769343-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9769343-0
  • 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
3466a25e0ec8edf0a3d6ff61e66e8183246c716be04ca7cccaa39032367b5dbf		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10303 bytes

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