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=solutions-2nd-edition-pre-intermediate-progress-test-key.pdf In PDF document text

  • http://uncpbisdegree.com/download4.php?q=solutions-2nd-edition-pre-intermediate-progress-test-key.pdfIn PDF document text
  • http://www.phschool.com/In PDF document text
  • http://www.bibme.org/In PDF document text
  • http://www.bg-sex.tv/In PDF document text
  • https://www.gl.com/productlist.htmlIn PDF document text
  • http://www.classzone.com/In PDF document text
  • http://www.hoagiesgifted.org/tests.htmIn PDF document text
  • http://www.siba-modelle.de/In PDF document text
  • http://concordspedpac.org/TypesTests.htmlIn PDF document text
  • http://qpsinc.com/training-calendar/In PDF document text
  • https://www.railstutorial.org/In PDF document text
  • http://www.dfi.org/publications.aspIn PDF document text
  • http://www.internationalsped.com/documents/entireIn PDF document text
  • http://www.natap.org/hcv.htmIn PDF document text
  • http://www.morningside.com/news/In PDF document text
  • http://riverside-resort.net/1/the-tin-horse-janice-steinberg.pdfIn PDF document text
  • http://riverside-resort.net/1/soundstream-tra560-2-car-amplifiers-owners-manual.pdfIn PDF document text
  • http://riverside-resort.net/1/south-western-accounting-answer-key.pdfIn PDF document text
  • http://riverside-resort.net/1/understanding-operating-systems-6th-edition-solutions.pdfIn PDF document text
  • http://riverside-resort.net/1/the-prize-the-epic-quest-for-oil-money-and-power.pdfIn PDF document text
  • http://riverside-resort.net/1/sylvania-smpk8858-user-guide.pdfIn PDF document text
  • http://riverside-resort.net/1/the-mole-chapter-answer-key.pdfIn PDF document text
  • http://riverside-resort.net/1/the-big-chariot.pdfIn PDF document text
  • http://riverside-resort.net/1/ssc-cpo-exam-2012-answer-key.pdfIn PDF document text
  • http://riverside-resort.net/1/the-holcroft-covenant-robert-ludlum.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.wbdg.org/In PDF document text
  • http://www.studyisland.com/In PDF document text
  • https://www.nasdaq.com/news/In PDF document text
  • https://mobirise.com/In PDF document text
  • https://en.wikipedia.org/wiki/ComplexityIn PDF document text
  • https://www.scribd.com/document/364568744/Saunders-Comprehensive-Review-for-the-Nclex-rn-Examination-7th-Edition-pdf-2In PDF document text
  • http://www.academia.edu/27111303/Materials_Science_and_Engineering_an_Introduction_9th_edition_-_By_William_D._Callister_Jr._and_David_G._Rethwisch_TextbookIn PDF document text
  • http://www.academia.edu/15273562/Basic_Econometrics_5th_Edition_by_Damodar_N._Gujarati_and_Dawn_C._Porter_In PDF document text
  • https://view.officeapps.live.com/op/view.aspx?src=http%3A%2F%2Fwww.internationalsped.com%2Fdocuments%2Fentire%2520issue%2520vol26%2520n.%25202.docIn PDF document text
  • https://es.wikipedia.org/wiki/LibroIn PDF document text
  • https://www.udc.es/bibliotecaIn PDF document text
  • http://go.microsoft.com/fwlink/?LinkID=617350In 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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