Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 84cc3fcc42fe6b64…

MALICIOUS

Office (OLE) / .DOCX

149.9 KB Created: 2020-09-28 14:26:00 Authoring application: Microsoft Office Word
MD5: 9d41b954e4d8fc322795b34de35f9c8e SHA-1: 3ad8c0f4a04f4129f83b1e54c834ff6ea1dd6813 SHA-256: 84cc3fcc42fe6b640513a189a584cb5a92f571c6e317b81a80a5721b8aeaf978
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is a Microsoft Office document containing VBA macros, specifically a Document_Open macro that uses CreateObject to execute code. This is a common technique for Emotet to download and execute a second-stage payload. The ClamAV detection also strongly suggests Emotet. The embedded URL is benign and likely a 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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