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://synerhu.ru/uplcv?utm_term=thermodynamic+and+transport+properties+of+fluids+pdf+download PDF link annotation

  • http://homelife-superstars.com/image/files/lejapigikajuselumikabupuf.pdfIn PDF document text
  • http://grhs1983.com/clients/72571/File/fixem.pdfIn PDF document text
  • http://jhdljz.com/userfiles/file/1628048644.pdfIn PDF document text
  • https://fablab808.com/nbloom/fckuploads/file/37472245046.pdfIn PDF document text
  • https://pu-sk.com/app/templates/js/ckfinder/userfiles/files/sezunakowefilosixuzub.pdfIn PDF document text
  • https://barcelonacentromedico.es/files/galeria/files/51494739006.pdfIn PDF document text
  • https://athensviptour.com/wp-content/plugins/super-forms/uploads/php/files/905b685e6a8f7f51bfdd1533c3a9a9ce/88509333063.pdfIn PDF document text
  • http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608668de57e85---tamil.pdfIn PDF document text
  • https://filetorme.com/upload/files/39188700643.pdfIn PDF document text
  • https://kfz-gutachter-oliver-schiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a90019d3eb7---5284243745.pdfIn PDF document text
  • http://bsp-oblspl.org/ckfinder/userfiles/files/68945377831.pdfIn PDF document text
  • https://cairparavel.ro/app/webroot/files/userfiles/files/leroxizufada.pdfIn PDF document text
  • https://actioncoach.com.my/wp-content/plugins/formcraft/file-upload/server/content/files/160d353771dc57---koduzesikegugodomivinude.pdfIn PDF document text
  • http://loaamtran.com/files/usersfiles/files/menabisiwi.pdfIn PDF document text
  • https://cissud.eu/uploads/ck_editor/files/5442223205.pdfIn PDF document text
  • https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/5a82b53c051bfc66b300021a57369ff7/lijobufiwazata.pdfIn PDF document text
  • http://thietkewebbacninh.com/webroot/img/files/19519434250.pdfIn PDF document text
  • http://adirondackseafood.com/ckfinder/userfiles/files/54677930403.pdfIn PDF document text
  • http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160792f120d53d---xedederurodemokafagop.pdfIn PDF document text
  • https://miaousland.fr/ckfinder/userfiles/files/42485564961.pdfIn PDF document text
  • http://atdawnwelift.com/userfiles/file/logokas.pdfIn PDF document text
  • http://backupcenters.com/userfiles/file/91096268190.pdfIn PDF document text
  • https://art-lamps-rali.eu/files/file/86882330296.pdfIn PDF document text
  • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/geinsl997e9rv5ffbunvbrai2l/40675368103.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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