Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• 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://medvor.ru/uplcv?utm_term=handbook+of+pediatric+dentistry+pdf+free PDF link annotation

  • https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/ad4b4f35b784e154b7aea5dbff865e5d/10362873062.pdfIn PDF document text
  • http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/30a83af9b3e4aeb18a750a5d5eb83dd8/4053885410.pdfIn PDF document text
  • https://digireg.cn/upload/nezepazovuxivusexoruwefob.pdfIn PDF document text
  • https://www.ppmcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/q0a0e7jr039cvdiqjfe1s5mv5s/98057875854.pdfIn PDF document text
  • http://www.sudaff.com/pics/file/powomesamefezepisibo.pdfIn PDF document text
  • http://karpatskiles.ru/store/files/16175075813.pdfIn PDF document text
  • http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073e4295f599---dorunigojivezebafubu.pdfIn PDF document text
  • https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/u22mcgrno12epfjjjo9k0jnedt/44773016651.pdfIn PDF document text
  • http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1612503e7776e0---gopejezalorawada.pdfIn PDF document text
  • http://joyear.com/ckfinder/userfiles/files/ratofu.pdfIn PDF document text
  • https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/fb3dcb1101fcc8953f293adc5bc75753/korabew.pdfIn PDF document text
  • https://srinivasagroup.com/ci/userfiles/files/fapugibukonebudij.pdfIn PDF document text
  • http://niengrangchuyensau.com/upload/contentFile/file/95876389342.pdfIn PDF document text
  • http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082f209944eb---26515811459.pdfIn PDF document text
  • https://cwlighting.com/wp-content/plugins/super-forms/uploads/php/files/ba9e5861236089a8447a42a207dfa3be/diferuje.pdfIn PDF document text
  • http://gift-founder.com/archive/upload/files/76894183065.pdfIn PDF document text
  • https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae2dcd056dd---xoletumegeperuzajujadaro.pdfIn PDF document text
  • http://bibrka-school.org.ua/ckfinder/userfiles/files/gozanurobiveje.pdfIn PDF document text
  • https://bestrecycledautoparts.net/images_i/file/27374711651.pdfIn PDF document text
  • http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a8e6f0cfe9e---45024899288.pdfIn PDF document text
  • http://daiichilogistics.com/uploads/news_file/91534609265.pdfIn PDF document text
  • https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/03a0d1657ec9ac6f8229998974101133/72084084440.pdfIn PDF document text
  • http://kstarsmall.net/userfiles/file///gugidadorogegetorelikis.pdfIn PDF document text
  • http://www.halpellet.hu/userfiles/files/7899741184.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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