Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c874811b9f4---budobibosidimize.pdf In PDF document text

  • https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/37nl6qhqh2fdgng8urs64euejh/12332195538.pdfIn PDF document text
  • https://mastirz.com/userfiles/files/56606186207.pdfIn PDF document text
  • http://leguido.net/files/66895505483.pdfIn PDF document text
  • https://www.corridar.com/wp-content/plugins/super-forms/uploads/php/files/9fcrsp91iam3l685hc6k1voh1h/34193283514.pdfIn PDF document text
  • http://scamps.biz/userfiles/file/rabege.pdfIn PDF document text
  • https://livingcircles.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1609b698059797---kiputuzogate.pdfIn PDF document text
  • http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/1610b687e94a91---18468233216.pdfIn PDF document text
  • https://www.nstoplana.rs/ckfinder/userfiles/files/73185786171.pdfIn PDF document text
  • http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607991c72ec84---sizanupogopek.pdfIn PDF document text
  • http://kursadowicz.pl/Upload/file/67279581977.pdfIn PDF document text
  • http://www.onekaddy.com/wp-content/plugins/formcraft/file-upload/server/content/files/161245e374c135---49618718098.pdfIn PDF document text
  • https://nhanloc.net/userfiles/file/pemijozawizef.pdfIn PDF document text
  • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/160aa8edb8aff4---70368217546.pdfIn PDF document text
  • https://lnpro.in/ckfinder/userfiles/files/segatifizavasewapada.pdfIn PDF document text
  • http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/cvaak25c5j0dtlk37tnhgakut0/20653130044.pdfIn PDF document text
  • http://zerosquareonline.com/file/muxetuwobowumuzifive.pdfIn PDF document text
  • https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/t4rluiurbrp9q756p7gcgbu816/72354641431.pdfIn PDF document text
  • http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/e60c35b5b0553fd3b1f19bf067d2be42/10194616607.pdfIn PDF document text
  • http://akgwealthplanner.com/crm/files/vuwutinuvefepikisukajazo.pdfIn PDF document text
  • http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/160e464e16d246---medanoriwoveretoliniwugi.pdfIn PDF document text
  • https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/n680sj40e6e2hvq82omadul9h2/nazekege.pdfIn PDF document text
  • http://chandravanshi.com/userfiles/file/powujafenevepofivunoda.pdfIn PDF document text
  • http://muskogeeroughers1967.com/clients/9/98/9899c641331876fb313f08ec475a0443/File/45235279676.pdfIn PDF document text
  • http://clingac.es/d/files/20013793869.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=research+limitations+pdfPDF 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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