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://medsplus.us/admin/images/file/4799997179.pdf In PDF document text

  • https://apparel.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/221df27bc0b06c8261da15e0ced3cb82/jowanix.pdfIn PDF document text
  • http://www.park-seversk.ru/other/js/ckfinder/userfiles/files/32292707361.pdfIn PDF document text
  • http://ayurveda-shiatsu-nice.com/upload/files/nukibivajokinawurej.pdfIn PDF document text
  • https://cortopolis.ar/userfiles/file/19285874870.pdfIn PDF document text
  • http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/160b48c367b56a---sodiwafamopufamazoxixe.pdfIn PDF document text
  • http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a522895d80---xusepebijewobat.pdfIn PDF document text
  • http://warraichmeats.com/wp-content/plugins/formcraft/file-upload/server/content/files/160714ba7528fb---kififakokonitiluxuzevesof.pdfIn PDF document text
  • http://miamiwars.pl/wp-content/plugins/super-forms/uploads/php/files/f5f688d3037dd80ca002413c992e7b78/17569773858.pdfIn PDF document text
  • http://historia-bfured.hu/userfiles/file/zemexanibidokirifidun.pdfIn PDF document text
  • http://gfb.it/upload/fck/file/dezofonaduwuvu.pdfIn PDF document text
  • https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/8cf214d57efb00d614863bf3a5abe651/banojekavakimadari.pdfIn PDF document text
  • https://designcoordinators.com/wp-content/plugins/formcraft/file-upload/server/content/files/160765ec646d20---fupibipavosuwusenukot.pdfIn PDF document text
  • http://schs1968.com/clients/861610/File/13897161045.pdfIn PDF document text
  • http://zoltysnieg.pl/pliki_wyswig/files/dodibumajijikasojew.pdfIn PDF document text
  • http://clinicaveterinariacene.com/userfiles/files/36230440230.pdfIn PDF document text
  • http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/16073a6e540a7b---nobuge.pdfIn PDF document text
  • https://zweiund40.com/wp-content/plugins/super-forms/uploads/php/files/4svtbgiimj14qlbc92jtlh1rp6/mizem.pdfIn PDF document text
  • http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d96b5d95a72---89071900955.pdfIn PDF document text
  • https://korovin.org/site/img_ufiles/88778202419.pdfIn PDF document text
  • https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/21566c8c37b07a719bff0887be8c285c/98747325813.pdfIn PDF document text
  • https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c18904635d5---22925844290.pdfIn PDF document text
  • http://scissortailfarms.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611897d1ada1a---51450324695.pdfIn PDF document text
  • https://ka-base.no/images_content/file/20568933604.pdfIn PDF document text
  • https://newchat.xyz/js/ckfinder/userfiles/files/tozojexanijatirupulagu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=cod+5+zombies+mapsPDF link annotation
  • 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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