Malicious PDF — malware analysis report

Static analysis result for SHA-256 4788dc4da96edf1f…

MALICIOUS

PDF

109.9 KB Created: 2022-05-06 22:28:07 Authoring application: Closing Document And Trying To Undo Drive dumb (via FPDF 1.82) First seen: 2026-06-20
MD5: 97e4d8a27c5ff4c40bc732468780b348 SHA-1: c79ee9cb736286e58087474998b8374266477e7b SHA-256: 4788dc4da96edf1f940290b62bc94b91843da17f2361c03bf8c6fd29be566ce1
92 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0006

Heuristics 3

  • Invisible/repeated PDF links deliver payload file critical PDF_REPEATED_PAYLOAD_LINK_LURE
    PDF uses invisible link annotations and points to a direct payload download. Repeated invisible links or lure-like payload names such as document/unlock/verify archives match malware-delivery PDF carriers where the page is only a prompt and the real payload is fetched from the linked URL.
  • PDF carries SEO doc-farm redirector links (/pdf/<domain>) medium PDF_SEO_DOC_REDIRECTOR_LINK_FARM
    PDF contains clickable redirector links whose path ends in a bare website domain behind a /pdf/ or /doc/ segment (e.g. 'host/Document-Title-Slug/pdf/target-site.tld'), paired across both variants and/or alongside links into WordPress form-plugin upload storage. This is the generated 'free document/template' SEO phishing family: scrambled filler text plus links that route searchers through a redirector into payload/redirect chains. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://citesdetails.site/Closing-Document-And-Trying-To-Undo-Drive/pdf/www.flynnwright.com In PDF document text
    • http://citesdetails.site/Closing-Document-And-Trying-To-Undo-Drive/doc/www.flynnwright.comIn PDF document text
    • https://www.flynnwright.com/wp-content/uploads/formidable/16/eating-out-habits-questionnaire.pdfIn PDF document text
    • https://www.flynnwright.com/wp-content/uploads/formidable/16/document-controller-oil-and-gas-salary.pdfIn PDF document text
    • https://www.flynnwright.com/wp-content/uploads/formidable/16/second-lien-holder-statute-of-limitations.pdfIn PDF document text
    • https://www.flynnwright.com/wp-content/uploads/formidable/16/waiver-of-objections-to-discovery-florida.pdfIn PDF document text
    • http://citesdetails.site/closing-document-and-trying-to-undo-drive/doc/www.flynnwright.comIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_008_off00003ab4.js decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3AB4 7649 bytes
SHA-256: f7da7a05afd3f7c1fe1b325cb571dce3f8dd69f8e645960b0e897f42865aec7a
stream_016_off0001ac02.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1AC02 76950 bytes
SHA-256: 43b13684882d332187dbe2691d5e4f64c33a98e381a4dc2316374ba1b923b47c

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