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://coretry.ru/uplcv?utm_term=java+collections+sort+reverse PDF link annotation

  • https://kfz-gutachter-oliver-schiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/160948d2a9f380---felidofuxel.pdfIn PDF document text
  • https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/18f08040e1ddadcd4256aef45ff65982/revaloneguvetej.pdfIn PDF document text
  • http://webursitet.org/Files/file/warepuv.pdfIn PDF document text
  • https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609426ea7f55c---pegawubokizulomutoxamupu.pdfIn PDF document text
  • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/16070a5af31022---vajotubefolimapazipufuz.pdfIn PDF document text
  • https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/160add3e418589---93652726153.pdfIn PDF document text
  • https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a02cd002a22---javalemenerin.pdfIn PDF document text
  • http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b479ecc100b---tosulagobezudixires.pdfIn PDF document text
  • http://gzmingjun.com/uploadfile/files/20210815_080825.pdfIn PDF document text
  • http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092b9574dd0e---wokeresodofegezuxuk.pdfIn PDF document text
  • http://tootingtaxi.com/survey/userfiles/files/kutilobigabovabalefuz.pdfIn PDF document text
  • http://accessiblevehicleservices.com/userfiles/file/73319896939.pdfIn PDF document text
  • http://dianacb.cz/userfiles/file/61448787227.pdfIn PDF document text
  • https://sancarspune.com/wp-content/plugins/super-forms/uploads/php/files/a739c308d0462d24f52cc95fd4caeac1/nunilu.pdfIn PDF document text
  • http://yao-cheng.com/uploadfiles/20210830211138.pdfIn PDF document text
  • https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/2f78f81bf0455fc37154dc9bacb65e87/70691487320.pdfIn PDF document text
  • http://exhibitionchannel.com/upload/popanuwe.pdfIn PDF document text
  • https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086625291ce3---teviwezazodutuzabop.pdfIn PDF document text
  • http://www.iciparis.ru/ckfinder/userfiles/files/dovoburamiwi.pdfIn PDF document text
  • http://ventiliatoriai.lt/js/ckfinder/userfiles/files/midavelozafutekozilefe.pdfIn PDF document text
  • https://jambukuning.com/contents//files/21779527750.pdfIn PDF document text
  • https://certifiedmoversinc.com/wp-content/plugins/super-forms/uploads/php/files/ce9bb5f266a751de9bb732ee7073c94c/resavovudapogabajolebuv.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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