Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 0bff6bf6ba29202d…

MALICIOUS

Office (OLE) / .DOCX

128.7 KB Created: 2020-10-14 13:53:00 Authoring application: Microsoft Office Word
MD5: 6c9ef5799ea314f51616e2c31ae61bc4 SHA-1: da1c514f1a4d62777bad875b6dc7002780c32706 SHA-256: 0bff6bf6ba29202d79c2d6d99daa7e68c8d9510de74cf51953ad87f9b9e8c71a
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a common Emotet infection vector. The macro utilizes CreateObject to execute code, strongly suggesting it downloads and runs a secondary payload. ClamAV detection as 'Doc.Downloader.Emotet' further supports this family attribution.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9778040-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9778040-0
  • 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
a085f52da3766ff03b3361ab273cac0c99aef403d2275ac551d698dcc8f8bb33		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 9635 bytes

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