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=stomata-lab-answer-key.pdf In PDF document text

  • http://uncpbisdegree.com/download4.php?q=stomata-lab-answer-key.pdfIn PDF document text
  • http://www.phschool.com/science/biology_place/glossary/p.htmlIn PDF document text
  • https://www.biologycorner.com/worksheets/In PDF document text
  • http://www.bozemanscience.com/ap-biologyIn PDF document text
  • http://www.sumanasinc.com/webcontent/animations/content/cellularrespiration.htmlIn PDF document text
  • http://thesmartstudent.sg/2017/08/18/size-seed-affects-plant-processes/In PDF document text
  • https://allinonehighschool.com/biology-answers-2/In PDF document text
  • http://www.scienceprojectlab.com/2nd-grade-science-fair-project.htmlIn PDF document text
  • http://nospray.org/naled-insecticide-fact-sheet/In PDF document text
  • https://www.thinkib.net/biology/page/18115/alveoli-gas-exchangeIn PDF document text
  • https://www.thinkib.net/biologyIn PDF document text
  • http://www.uq.edu.au/_School_Science_Lessons/topic01.htmlIn PDF document text
  • http://seniorbiology.com/eei.htmlIn PDF document text
  • http://seniorchem.com/eei.htmlIn PDF document text
  • http://www.drroyspencer.com/2013/10/the-social-benefit-of-carbon-3-5-trillion-in-agricultural-productivity/In PDF document text
  • https://www.geoengineeringwatch.org/geoengineering-watch-global-alert-news-november-18-2017/In PDF document text
  • http://riverside-resort.net/1/td-bank-resolution-plan-2013-federal-reserve-system.pdfIn PDF document text
  • http://riverside-resort.net/1/the-strategy-book-max-mckeown.pdfIn PDF document text
  • http://riverside-resort.net/1/the-smiths-black-and-white.pdfIn PDF document text
  • http://riverside-resort.net/1/tolleys-property-taxation-2007-08.pdfIn PDF document text
  • http://riverside-resort.net/1/the-malolos-congress.pdfIn PDF document text
  • http://riverside-resort.net/1/ukrainian-phrasebook-and-dictionary-paperback.pdfIn PDF document text
  • http://riverside-resort.net/1/tusk-motorcycle-enduro-lighting-kit-review.pdfIn PDF document text
  • http://riverside-resort.net/1/toyota-avensis-spare-fuse-diagram.pdfIn PDF document text
  • http://riverside-resort.net/1/spqr-a-history-of-ancient-rome.pdfIn PDF document text
  • http://riverside-resort.net/1/solutions-manual-for-introduction-to-mathematical-programming.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://en.wikipedia.org/wiki/StomaIn PDF document text
  • http://abacus.bates.edu/~ganderso/biology/resources/writing/HTWsections.htmlIn PDF document text
  • http://www.abc.net.au/catalyst/stories/4014144.htmIn PDF document text
  • http://www.educationworld.com/a_curr/curr110.shtmlIn PDF document text
  • https://www.onelook.com/pm/In PDF document text
  • https://quizlet.com/45012989/ec-6-flash-cards/In PDF document text
  • http://blogs.discovermagazine.com/imageo/2018/03/12/what-science-says-about-role-of-co2-in-climate-change/In 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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