Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 6cae566b9d2d89e3…

MALICIOUS

Office (OLE) / .DOC

162.9 KB Created: 2020-09-14 06:44:00 Authoring application: Microsoft Office Word
MD5: 61b26369981a2566d151cc2c918b2472 SHA-1: 918367c6009f760d891fa43f2b827a764352a4eb SHA-256: 6cae566b9d2d89e311e0652e5e6e413ec5fad3c08d100ce1358485ca63d4e298
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The sample is a malicious Office document containing VBA macros, specifically a Document_Open macro that uses CreateObject to execute code. ClamAV detection confirms it as Emotet. The VBA script appears to be heavily obfuscated but is designed to download and execute a second-stage payload, indicated by the presence of macro code and the 'CreateObject' heuristic.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9762310-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9762310-0
  • 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
94aa0eae3715e5e4c777d8559a3d12a3d055d6c09f9bd5aa9415cdba60070681		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 25226 bytes

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