Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6a500490be1db393…

MALICIOUS

Office (OLE) / .DOCX

176.6 KB Created: 2020-09-18 13:57:00 Authoring application: Microsoft Office Word
MD5: b4ea4edccc96e0a9afa304d4871c7639 SHA-1: 25a6edd63c9565c32eb34c9be6b126a8481b09b5 SHA-256: 6a500490be1db393b419c4d2dc1bd43557bd87fe40b7b996037834fb137d8d0e
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file contains VBA macros, specifically a Document_open macro that uses CreateObject, indicating an attempt to execute code automatically. ClamAV detection explicitly identifies it as 'Doc.Downloader.Emotet-9763587-0', strongly suggesting Emotet family involvement. The macro's structure and the heuristic firings point to a downloader functionality, likely fetching and executing a secondary payload.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9763587-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9763587-0
  • 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
d480f4e62437f12b4fdbfa09699c3791dd8e97ee1633f946eb76ef39a2f5d3e4		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 20121 bytes

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