Malicious PDF — malware analysis report

Heuristics 4

• Fake 'free download' SEO-poisoning PDF critical PDF_SEO_FAKE_DOWNLOAD
  The ML classifier flagged this PDF AND it carries a visual download/call-to-action lure AND an off-domain server-side download-gateway link whose query string names a document payload. This three-signal conjunction is the fake-document / 'free PDF download' SEO-poisoning delivery pattern: the page is padded with benign decoy links to dilute classifier scores while funnelling the victim through the gateway to malware/scareware. Acting only on the conjunction keeps benign download-bearing PDFs from being misflagged.
• PDF carries a PHP-gateway SEO-spam PDF link farm medium PDF_SEO_PHP_GATEWAY_LINK_FARM
  PDF contains four or more clickable links whose target is a `.php` gateway with a multi-word search-PHRASE document slug embedded after it (e.g. 'index.php?.../binary+options+trading+nz.pdf' or 'pdf.php/cialis-dosage-side-effects.pdf'). Legitimate PHP-served documents use a filename or numeric id, not a search-query phrase, so this is the generated SEO link-farm shape — pharma / binary-options / 'free download' spam that ranks for queries and routes users into payload/redirect chains. The PDF itself carries no exploit — the risk is the linked destinations.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://uncpbisdegree.com/download3.php?q=traits-and-probability-study-guide-answer-key.pdf In PDF document text

  • http://uncpbisdegree.com/download4.php?q=traits-and-probability-study-guide-answer-key.pdfIn PDF document text
  • http://www.brightlinkprep.com/difference-personal-statement-study-objectives-fulbright-scholarship-pakistan/In PDF document text
  • http://www.coresubjectsec-6.com/In PDF document text
  • http://www.evolution-textbook.org/content/free/contents/ch27.htmlIn PDF document text
  • http://www.pharmasug.org/us/2016/papers.htmlIn PDF document text
  • http://cavalierhealth.org/mvd3.htmIn PDF document text
  • http://ceonextdoorbook.com/In PDF document text
  • http://www.phschool.com/In PDF document text
  • http://sciencespot.net/Pages/classbio.htmlIn PDF document text
  • https://www.farmingdale.edu/courses/course-listing.shtmlIn PDF document text
  • https://jjie.org/hub/evidence-based-practices/key-issues/In PDF document text
  • http://www.information-iii.org/abs_e2.htmlIn PDF document text
  • https://www.justfacts.com/education.aspIn PDF document text
  • https://betterexplained.com/articles/a-visual-intuitive-guide-to-imaginary-numbers/In PDF document text
  • http://www.law.edu/library/reference/Catholic-Legal-Bibliography.cfmIn PDF document text
  • http://www.preceptaustin.org/acts_16_commentaryIn PDF document text
  • http://www.cavalierhealth.org/mvd2.htmIn PDF document text
  • http://riverside-resort.net/1/undergraduate-scholarship-2017-2018.pdfIn PDF document text
  • http://riverside-resort.net/1/studio-3-solutions-copic-marker-storage.pdfIn PDF document text
  • http://riverside-resort.net/1/the-gilded-chamber-a-novel-of-queen-esther-rebecca-kohn.pdfIn PDF document text
  • http://riverside-resort.net/1/solutions-manual-for-power-generation-operation-control.pdfIn PDF document text
  • http://riverside-resort.net/1/supernatural-childbirth-jackie-mize.pdfIn PDF document text
  • http://riverside-resort.net/1/services-hospital-lahore-map.pdfIn PDF document text
  • http://riverside-resort.net/1/tipler-and-llewellyn-modern-physics-solutions.pdfIn PDF document text
  • http://riverside-resort.net/1/throttle-position-sensor-troubleshooting-of-mitsubishi-lancer-4g92-engine.pdfIn PDF document text
  • http://riverside-resort.net/1/the-return-of-the-caravels-antunes-antonio-lobo.pdfIn PDF document text
  • http://riverside-resort.net/1/ssc-exam-math-question-2018.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://study.com/academy/lesson/translating-number-sentences-to-inequalities.htmlIn PDF document text
  • http://www.corestandards.org/assets/Appendix_A.pdfIn PDF document text
  • http://www.studyisland.com/In PDF document text
  • https://study.com/academy/lesson/how-to-add-subtract-multiply-and-divide-functions.htmlIn PDF document text
  • https://en.wikipedia.org/wiki/ComplexityIn PDF document text
  • http://slatestarcodex.com/2015/11/10/2d4d-ratio-and-psychological-traits-results-from-the-lwssc-survey-sample/In PDF document text
  • http://blogs.discovermagazine.com/neuroskeptic/2016/02/20/myth-mind-altering-parasite-toxoplasma-gondii/In PDF document text
  • http://web.cn.edu/kwheeler/lit_terms_R.htmlIn PDF document text
  • http://oll.libertyfund.org/titles/spencer-the-study-of-sociology-1873In PDF document text
  • https://www.trulia.com/blog/In PDF document text
  • https://www.epi.org/publication/education-inequalities-at-the-school-starting-gate/In PDF document text
  • https://www.fbi.gov/stats-services/publications/serial-murderIn PDF document text
  • https://www.fbi.gov/stats-servicesIn PDF document text
  • https://www.fbi.gov/stats-services/publicationsIn PDF document text
  • http://go.microsoft.com/fwlink/?LinkId=521839&CLCID=0409In PDF document text
  • http://go.microsoft.com/fwlink/?LinkID=246338&CLCID=0409In PDF document text
  • https://go.microsoft.com/fwlink/?linkid=868922In PDF document text
  • http://go.microsoft.com/fwlink/?LinkID=286759&CLCID=409In PDF document text
  • http://go.microsoft.com/fwlink/?LinkID=617297In PDF document text
  • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text

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