Malicious PDF — malware analysis report

Heuristics 6

• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• External URI info PDF_URI
  PDF contains an external URL action
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• 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 https://pistant.ru/uplcv?utm_term=what+are+the+job+requirements+for+a+medical+doctor PDF link annotation

  • https://jewfri.kr/files/image/files/gowujimokobis.pdfIn PDF document text
  • https://www.perfumista.co.uk/wp-content/plugins/super-forms/uploads/php/files/4830368b8fd359f2d4600106807dfef2/30795161828.pdfIn PDF document text
  • https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/25b4ee919352216b8ef86b6136c96e88/76268142686.pdfIn PDF document text
  • http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160a6852644df2---91502232955.pdfIn PDF document text
  • http://bartuceviri.com/userfiles/file/33841617852.pdfIn PDF document text
  • https://btegypt.com/file/63004802219.pdfIn PDF document text
  • https://medosojewellery.com/userfiles/files/ziwesujavinetil.pdfIn PDF document text
  • http://kennedy-jackson.com/clients/f/f7/f78508644b517540cdb1549d93860f53/File/28953045747.pdfIn PDF document text
  • http://954move.com/clients/4890/File/71896962252.pdfIn PDF document text
  • https://vienhung.com/webroot/img/files/nuwaramevovapapoti.pdfIn PDF document text
  • https://ccveg.org/wp-content/plugins/super-forms/uploads/php/files/9lb0qla4a1atl8hioav5ph11i4/repoduzewesajevetinolexuk.pdfIn PDF document text
  • https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4958c46a12---pogimizegovawateragoreko.pdfIn PDF document text
  • http://unesco-mediain.cz/fckfiles/file/71448693052.pdfIn PDF document text
  • http://nhuaduongnhapkhauaz.com/upload/files/14317171205.pdfIn PDF document text
  • https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b167fda3316---naxofu.pdfIn PDF document text
  • http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/275af4fa1e67f68d0f14bdea36051c66/kemanurujukikaxilam.pdfIn PDF document text
  • http://ohxto.com/uploaded_files/userfiles/files/burizikuvifub.pdfIn PDF document text
  • https://memorybg.net/app/templates/js/ckfinder/userfiles/files/perolixiteje.pdfIn PDF document text
  • https://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/ujqtbqcafnonf8g8gon5degmkj/37116360681.pdfIn PDF document text
  • http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16079a909d1223---dabebolevabotakudibera.pdfIn PDF document text
  • https://isitekmuhendislik.com/userfiles/file/lojofiruwojetobawofuke.pdfIn PDF document text
  • https://www.letspassdriving.co.uk/wp-content/plugins/super-forms/uploads/php/files/mk64gk6pnnsf2qgi6r8fabm3j0/99717997635.pdfIn PDF document text
  • http://azseal.net/uploads/userfiles/file/seliwugofaxizudamexikota.pdfIn PDF document text
  • https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ce0017d398---donekepegupete.pdfIn PDF document text
  • http://eatatrudy.com/uploads/files/vofikafusamazivaboketilo.pdfIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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