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://inwebjor.ru/uplcv?utm_term=open+android+app+in+chrome PDF link annotation

  • https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/f7cb37b0f90b2ad6e319dbd042997c3d/8706632425.pdfIn PDF document text
  • http://cukrarska-vyroba.cz/UserFiles/File/tofepufumelema.pdfIn PDF document text
  • http://zeguvietnam.com/uploads/ckfinder/files/364512617.pdfIn PDF document text
  • http://dribblebar.pl/userfiles/file/18168198459.pdfIn PDF document text
  • http://hoitruyengiaocodocvietnam.com/uploads/image/files/4763762545.pdfIn PDF document text
  • http://sh-songshi.com/admin/upimg/file///70721437744.pdfIn PDF document text
  • http://ptsound.com/plugins/ckfinder/userfiles/files/6680817634.pdfIn PDF document text
  • http://verynailscm.com/user_img/file/rubudebenesixe.pdfIn PDF document text
  • http://yuha.be/_files/file/xojugotubamibupiter.pdfIn PDF document text
  • http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613399a4e2a90---jusamuxemulavaguta.pdfIn PDF document text
  • http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/16148a6a357765---divozowokukituwifoxitulaj.pdfIn PDF document text
  • https://cissud.it/uploads/ck_editor/files/zosadokezapagavojazo.pdfIn PDF document text
  • http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16136c0533c762---52158890693.pdfIn PDF document text
  • http://porpora.group/imagenes/imagenes_contenidos///88155657166.pdfIn PDF document text
  • https://cakesandcupcakes.net/userfiles/files/72668250471.pdfIn PDF document text
  • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/16139d052a7ea6---63259571333.pdfIn PDF document text
  • https://www.studiorosaliabusco.it/ckfinder/userfiles/files/fotorugaxoz.pdfIn PDF document text
  • https://clubberia.com/js/ckfinder/userfiles/files/diwow.pdfIn PDF document text
  • http://uts.edu.co/portal/app/ckfinder/userfiles/files/darogalibedonakiwoxip.pdfIn PDF document text
  • http://www.logistiekverbeteren.nl/ckfinder/userfiles/files/wolibirabopilusadiwepejaf.pdfIn PDF document text
  • http://oldmotorsclub.com/files/file/pirubaxaseparidifu.pdfIn PDF document text
  • https://bosingels.nl/ckfinder/userfiles/files/44059631710.pdfIn PDF document text
  • http://beastyenergy.com/userfiles/file/kaxosoz.pdfIn PDF document text
  • http://balade-pierry.fr/userfiles/file/newesemo.pdfIn PDF document text
  • http://cck-brno.cz/ckfinder/userfiles/files/gabuvafagufonogivux.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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