Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 5be096c9afbb3093…

MALICIOUS

Office (OLE) / .DOCX

142.5 KB Created: 2020-09-25 16:17:00 Authoring application: Microsoft Office Word
MD5: 387c2b2478b3a4c0772192bca37041a0 SHA-1: ff2048484f62c09ead07bd4b7e422fab1d93126d SHA-256: 5be096c9afbb309328e357ac0198ed3279c97409eaea75444c58841fb601efd0
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file was detected as malicious by ClamAV with the signature 'Doc.Downloader.Emotet-9768415-1', indicating it is likely part of the Emotet botnet. The presence of a 'Document_Open' VBA macro that uses 'CreateObject' strongly suggests the execution of malicious code upon opening. While the VBA code is obfuscated, the heuristic firings and the ClamAV signature point to a downloader functionality, which is characteristic of Emotet's initial infection stages.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9768415-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9768415-1
  • 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
24dc32bb0bf265d759acaab1be69526609f3f4e182439affcdf3ab2add969ffb		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 17320 bytes

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