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=us-history-regents-answers-2017.pdf In PDF document text

  • http://uncpbisdegree.com/download4.php?q=us-history-regents-answers-2017.pdfIn PDF document text
  • http://www.jmap.org/INTERDISCIPLINARY_JMAP.htmIn PDF document text
  • http://www.nysedregents.org/USHistoryGov/117/ushg12017-examw.pdfIn PDF document text
  • https://fullexams.com/exam/ib-exam-2017-grade-boundariesIn PDF document text
  • http://www.nysedregents.org/USHistoryGov/617/ushg62017-exampw.pdfIn PDF document text
  • http://friesian.com/sangoku.htmIn PDF document text
  • https://www.kwellerprep.com/new-york-regents-exam-prep/In PDF document text
  • https://fullexams.com/exam/army-hipaa-test-answersIn PDF document text
  • http://www.kipmckean.com/In PDF document text
  • http://www.newstribune.com/In PDF document text
  • https://www.thethailandlife.com/cost-living-thailandIn PDF document text
  • http://www.plagiarism.org/In PDF document text
  • http://www.umuc.edu/current-students/learning-resources/writing-center/index.cfmIn PDF document text
  • https://www.ohiohighered.org/ccp/faqsIn PDF document text
  • http://uncpbisdegree.com/1/the-complete-organic-chemistry-worksheet-answers.pdfIn PDF document text
  • http://riverside-resort.net/1/unit-three-review-2004-biology-answers.pdfIn PDF document text
  • http://uncpbisdegree.com/1/singer-2802-2852-sewing-machine-service-manualwhy.pdfIn PDF document text
  • http://uncpbisdegree.com/1/the-iowa-state-constitution-a-reference-guide.pdfIn PDF document text
  • http://riverside-resort.net/1/year-3-naplan-test-papers.pdfIn PDF document text
  • http://riverside-resort.net/1/yamaha-wave-venture-repair-manual.pdfIn PDF document text
  • http://riverside-resort.net/1/world-history-book-answers.pdfIn PDF document text
  • http://uncpbisdegree.com/1/teacher-answer-key-to-prentice-hall-biology-worksheets.pdfIn PDF document text
  • http://uncpbisdegree.com/1/the-answers-for-fraction-location-on-numberline.pdfIn PDF document text
  • http://uncpbisdegree.com/1/service-manual-daewoo-tacuma.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.osfa.la.gov/MainSitePDFs/TOPS_Q_and_A.pdfIn PDF document text
  • http://www.p12.nysed.gov/specialed/publications/safetynet-qa.htmIn PDF document text
  • http://www.augustachronicle.com/In PDF document text
  • http://worldhistory.columbia.edu/students/all/In PDF document text
  • https://www.ucsb.edu/commencement/In PDF document text
  • http://www.nysed.gov/news/2017/state-education-department-releases-spring-2017-grades-3-8-ela-and-math-assessment-resultsIn PDF document text
  • https://en.wikipedia.org/wiki/Nuclear_footballIn PDF document text
  • https://mail.google.com/mail/u/0/In PDF document text
  • http://biochemistry.ucr.edu/In PDF document text
  • http://rightontheleftcoast.blogspot.com/2017/05/In PDF document text
  • https://www.si.edu/In PDF document text
  • https://www.newyorker.com/magazine/2017/09/18/the-risk-of-nuclear-war-with-north-koreaIn PDF document text
  • https://abcnews.go.com/US/In PDF document text
  • https://en.wikipedia.org/wiki/Separate_but_equalIn 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://www.historians.org/about-aha-and-membership/aha-history-and-archives/historical-archives/why-study-history-In PDF document text
  • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text

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