Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://chcial.ru/uplcv?utm_term=carbapenem+antibiotics+pdf PDF link annotation

  • https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/rcrd6pqku8nrtduvmdfuv7ds51/kenulode.pdfIn PDF document text
  • http://www.ramseier-appenzell.ch/elrada/js/ckfinder/userfiles/files/kerosaxano.pdfIn PDF document text
  • http://tofuyatogo.com/uploads/files/69180456183.pdfIn PDF document text
  • https://ecobox.eng.br/wp-content/plugins/super-forms/uploads/php/files/foleg8an4odg9j3sn9u4c4p7kd/13311461024.pdfIn PDF document text
  • http://coumert.com/images/file/zodetabitorovunufaveveva.pdfIn PDF document text
  • http://poornasreehomeoclinic.com/ckfinder/userfiles/files/14432417621.pdfIn PDF document text
  • http://ukwoodrecycling.com/userfiles/files/12585232980.pdfIn PDF document text
  • http://ansing.nl/userfiles/file/71826192947.pdfIn PDF document text
  • http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b8b4b86cd8---69301885206.pdfIn PDF document text
  • https://www.kadinlarsitesi.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609b086d53e8b---4396634223.pdfIn PDF document text
  • https://www.rekalibracija.com/wp-content/plugins/super-forms/uploads/php/files/5a8b36442d581c3e58ba449a681006a1/60151095715.pdfIn PDF document text
  • http://ceramvetro.net/userfiles/file/gafazifowiwuguwegoberiwud.pdfIn PDF document text
  • http://oinworkshop.com/clients/6/6d/6d9161a7191ba42f41383a85782e2f4f/File/94571529373.pdfIn PDF document text
  • http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d4cdcea582---43921043442.pdfIn PDF document text
  • http://deficanderel.com/clients/6/67/674a09facce11b7629d390eef9534ff9/File/doveg.pdfIn PDF document text
  • https://thanaclusterwestgate.leaddeehub.com/userfiles/files/nanefopudizezefufelalimi.pdfIn PDF document text
  • http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/1608773f4e2f49---55709604275.pdfIn PDF document text
  • https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/9765bb97bb6c54f42b30c4bdabff396e/69088351998.pdfIn PDF document text
  • http://kuwaited.com/cote_dor_import/admin/ckfinder/userfiles/files/sanekimomugowoj.pdfIn PDF document text
  • http://combatkuntao.com/ckeditor/ckfinder/userfiles/files/sasexozararugikubi.pdfIn PDF document text
  • http://therealmccoyfamilyreunion.com/clients/f/f9/f9ea119420dddc0cc5ac7622830b9f68/File/61827904602.pdfIn PDF document text
  • http://app8itebarandgrill.com/admin/images/file/ligifajatufufojibil.pdfIn PDF document text
  • https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b87a25a7144---68988149757.pdfIn PDF document text
  • https://photographerin.agency/wp-content/plugins/super-forms/uploads/php/files/g7h7gvgcnci7du7tqmf4pmd3n5/33434451942.pdfIn PDF document text
  • https://www.themeshcowork.com/wp-content/plugins/super-forms/uploads/php/files/2d8daa083fa969914273b0632301480d/muwuke.pdfIn PDF document text
  • https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/3e76dc66bbcd1b9bfeddd2405c8b67db/jedezakureder.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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