Emotet — Office (OLE) malware analysis

Static analysis result for SHA-256 0f419604fa7f2c6c…

MALICIOUS

Office (OLE)

121.6 KB Created: 2018-10-03 21:45:00 Authoring application: Microsoft Office Word First seen: 2019-11-20
MD5: ec53ee4d53366c7dbdd4306c515256bc SHA-1: f48f79fabdf39062cee2d17191164a058810e534 SHA-256: 0f419604fa7f2c6c043ca0ee10e6fac06b6d4a29c5bc15aafca2c27ce40190a2
104 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file is identified as malicious by ClamAV as Doc.Downloader.Emotet-6887589-2. A critical heuristic indicates VBA p-code auto-execution with the Shell command, suggesting the document attempts to run a command upon opening. While VBA macros could not be directly extracted due to an unsupported format, the presence of the auto-execution heuristic strongly implies a downloader functionality, characteristic of Emotet.

Heuristics 4

  • ClamAV: Doc.Downloader.Emotet-6887589-2 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-6887589-2
  • 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.
  • Unsupported Office format for VBA extraction info OFFICE_FORMAT_UNSUPPORTED
    olevba could not extract VBA macros (AssertionError); format-agnostic byte-level scans still ran. Likely legacy, encrypted, or malformed OLE/OOXML — re-scanning the same bytes will yield the same outcome.
  • 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 In document text (OLE body)

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