Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://cructi.ru/uplcv?utm_term=antonyms+and+synonyms+worksheet+for+grade+1 PDF link annotation

  • http://nemeckystrakac.sk/editor_uploads/files/konokoxilolekupana.pdfIn PDF document text
  • https://aquariumfargo.com/wp-content/plugins/super-forms/uploads/php/files/9ef95454103e8264986c50ffc6b43a11/fewuzusenenirodekezatu.pdfIn PDF document text
  • http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160ba69305f023---zijagodifasidipe.pdfIn PDF document text
  • https://xn--bren-mgenwil-gcbf.ch/sites/default/files/fck-uploads/file/bixizegiwuwizotikelam.pdfIn PDF document text
  • https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/h0jqbqggo7v537hqa3qqpof3kv/wokiru.pdfIn PDF document text
  • http://mamam.by/upload/File/file/47895393483.pdfIn PDF document text
  • https://www.geo-decouverte.com/ck/ckfinder/userfiles/files/tudanodatufidirupawuvesep.pdfIn PDF document text
  • http://blow-w124.com/js/upload/files/suwafisux.pdfIn PDF document text
  • https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/2ffbc29835fb59164ac1bcd724ec0db4/40153750231.pdfIn PDF document text
  • http://assytekservizi.com/userfiles/files/nukuzope.pdfIn PDF document text
  • https://contabil-fiscal.ro/mm/file/subase.pdfIn PDF document text
  • http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b9ac2eefc9d---pakebuwufomadasagizi.pdfIn PDF document text
  • https://aiwatopup.com/ckfinder/userfiles/files/joludezisibujolumat.pdfIn PDF document text
  • http://hftyby.com/upload_fck/file/2021-8-18/20210818003243496031.pdfIn PDF document text
  • http://zgkimsteszew.pl/img/upload/files/mawagaliseludajakuj.pdfIn PDF document text
  • http://adamlegal.com/userfiles/file/64238639813.pdfIn PDF document text
  • https://extremedriveline.com/ckfinder/userfiles/files/tidujawuwopusa.pdfIn PDF document text
  • https://istanajp2.com/contents//files/20365162703.pdfIn PDF document text
  • https://razdolle.by/wp-content/plugins/super-forms/uploads/php/files/bj3et8vjb9av8ulpqgiv9suh11/95137918137.pdfIn PDF document text
  • https://webtraffic.ch/wp-content/plugins/super-forms/uploads/php/files/i4vrelu6mo62pen20a5ppbarf6/zejol.pdfIn PDF document text
  • https://tidymoney.com/ckfinder/userfiles/files/72306395506.pdfIn PDF document text
  • https://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/a42f4cf5e72a8bf4e06ee6e861c4c2b2/nagetigamasimevefeni.pdfIn PDF document text
  • https://taumed.kz/upload/2021/08files/2108220538212077029g0bs.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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