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://laborke.ru/uplcv?utm_term=sistema+digest%C3%B3rio+fisiologia+humana+pdf PDF link annotation

  • https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/160792d7a63c0e---13367254730.pdfIn PDF document text
  • http://mwflower.com/upimagesfile///63565762756.pdfIn PDF document text
  • https://elmawadah.com/userfiles/file/vipilavudepolog.pdfIn PDF document text
  • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/d253e2fac6ca829c5bb277fcc7fd077d/53780670487.pdfIn PDF document text
  • https://golf-tout-terrain.com/publish/page/file/58394553743.pdfIn PDF document text
  • http://naosgym.com/userfiles/files/78139369019.pdfIn PDF document text
  • http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/1609d5092205c9---wegiv.pdfIn PDF document text
  • http://trungtinjsc.vn/upload/FCK/file/48112991370.pdfIn PDF document text
  • http://czpohledavky.cz/userfiles/files/95827998286.pdfIn PDF document text
  • http://villa-carlshorst.de/sites/default/files/file/jevasoreg.pdfIn PDF document text
  • http://mu-rrrc.com/userfiles/file/96858169163.pdfIn PDF document text
  • http://sunjewelsonline.com/userfiles/file/67606401464.pdfIn PDF document text
  • http://broorybulldogs.com/clients/33993/File/wojijufopexipasawipago.pdfIn PDF document text
  • http://yaan121.com/uploads/files/202109021131252120.pdfIn PDF document text
  • http://xn----7sbabjkhbzbqti4a3apfmdd2s4b.xn--p1ai/ckfinder/userfiles/files/74742131294.pdfIn PDF document text
  • http://club-integra.ru/userfiles/file/41979350389.pdfIn PDF document text
  • http://www.toeterloeh44.de/files/purafumixipibebawumebalu.pdfIn PDF document text
  • https://advik.net/userfiles/file/58361586592.pdfIn PDF document text
  • http://hanilkwanla.com/uploads/files/kijesusosixosejibi.pdfIn PDF document text
  • https://alatheir.com/atheirwsfiles/file/46210515943.pdfIn PDF document text
  • https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/c45f66c5197c3cdad661e194c67dc3f8/winozojejorib.pdfIn PDF document text
  • http://mygotour.com/FileData/ckfinder/files/20210607_DF7995F9D2C0DDD8.pdfIn PDF document text
  • http://www.erealitysolutions.com/tennisontario/assets/appsadmin/js/ckfinder/userfiles/files/39969799112.pdfIn PDF document text
  • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/5a78f0993766e97e1a84a62866425d89/61155347479.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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