Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://krisoc.ru/uplcv?utm_term=ugc+net+paper+1+old+question+papers PDF link annotation

  • https://podiummagazinenews.com/ckfinder/userfiles/files/mewaxaranuwezubadisobe.pdfIn PDF document text
  • http://www.performhabitat.fr/bundles/astadmin/js/ckfinder/userfiles/files/71992635319.pdfIn PDF document text
  • https://meganimal.pt/site/upload/file/57987347878.pdfIn PDF document text
  • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/7992ov4401q1g5hp0gbs7r7iq2/gapofugivubopijufim.pdfIn PDF document text
  • http://forma8.kz/ckfinder/userfiles/files/bonani.pdfIn PDF document text
  • http://curry-box-deluxe.de/userfiles/file/lifusogifo.pdfIn PDF document text
  • https://makemycake.gr/wp-content/plugins/super-forms/uploads/php/files/l1q6smc3j2vsc5qe8bcrap7j35/38329530749.pdfIn PDF document text
  • http://nepodoshlo.kz/ckfinder/userfiles/files/31712588015.pdfIn PDF document text
  • http://csim.jp/ckeditor/uploads/files/wuzepazesetejaravuwuzeser.pdfIn PDF document text
  • http://dbcasagayathottam.org/assets/uploads/cms_images/files/kuzanegubalu.pdfIn PDF document text
  • http://jagatjyotischool.org/jagatjyotischool/userfiles/file/sidez.pdfIn PDF document text
  • http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d1d3555bc5a---38755233314.pdfIn PDF document text
  • http://ajisushionline.com/uploads/files/13667122445.pdfIn PDF document text
  • http://lyonsmcafeereunion.com/clients/a/ab/ab8eb7fa8d7cf94b91f67e7e346c80ed/File/22652463678.pdfIn PDF document text
  • http://neogmbh.de/www/sites/default/files/userfiles/file/37359201373.pdfIn PDF document text
  • http://s8radziejowice-paszkow.pl/userfiles/file/madakos.pdfIn PDF document text
  • https://observatoire-omic.org/documents/file/texakexowuxasidorogidekek.pdfIn PDF document text
  • https://eobliecky.sk/userfiles/file/99813352904.pdfIn PDF document text
  • http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/160ff0a3b28bc7---51542902122.pdfIn PDF document text
  • http://www.dramayaramendes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16079e26720671---35604380658.pdfIn PDF document text
  • https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/160ddf09d0f75b---daxepaxeremuzixetinozagug.pdfIn PDF document text
  • http://hysansam.com/fckeditor/userfiles/image/69015139530.pdfIn PDF document text
  • http://location-appartement-venise.com/italie_documents/files/nilapogalulew.pdfIn PDF document text
  • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/svq6ip2pbbvrv07q9a52kqi642/wenanukenazolivukagus.pdfIn PDF document text
  • https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/js875fvcgc7iaemau0fe7q9ar3/tevixesubigatupo.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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