Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 75b77dbe974f5881…

MALICIOUS

Office (OLE) / .DOCX

149.2 KB Created: 2020-09-28 14:26:00 Authoring application: Microsoft Office Word
MD5: ee3aa76009869d8f92eaff7039e38c9c SHA-1: 355c2a43a070b25a4852d3f3957cb654f0a40be5 SHA-256: 75b77dbe974f5881fa3c5321ca387ec5f36654debdfcd17322eb2e1a98f7b17b
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is a malicious Office document containing a Document_Open VBA macro. This macro uses CreateObject to execute arbitrary code, a common technique for Emotet. The macro attempts to download and execute a second-stage payload, indicated by the obfuscated code and the embedded URL which is likely a placeholder or benign schema reference.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9768663-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9768663-0
  • 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
52573b116f951816e527b23fd5cfdfc578caca117ddeb459f950d0953f709442		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 6643 bytes

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