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=jurassic+park+book+pdf PDF link annotation

  • http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ee3c0a39c8---zosolajafezu.pdfIn PDF document text
  • https://ethiquedevelopers.com/wp-content/plugins/super-forms/uploads/php/files/ceacea4899882cca7d69a054ae12d590/94048442199.pdfIn PDF document text
  • https://coluer.ir/documents/file/dizurew.pdfIn PDF document text
  • https://i-chat.tw/js/ckfinder/userfiles/files/noxoxujezelo.pdfIn PDF document text
  • https://gregor-biffiger.ch/userfiles/file/19573920276.pdfIn PDF document text
  • http://drironcat.com/images/file/92275975428.pdfIn PDF document text
  • http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b88a1b4444c---74295595089.pdfIn PDF document text
  • https://tangente-mag.com/img/file/bovelomegujewufafivak.pdfIn PDF document text
  • https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ee5dbc67716---11985874337.pdfIn PDF document text
  • https://sambelteri.com/contents//files/bepidulugakutowu.pdfIn PDF document text
  • http://ainut.fi/userfiles/file/55697635079.pdfIn PDF document text
  • https://www.letspassdriving.co.uk/wp-content/plugins/super-forms/uploads/php/files/r8j0mv5e2q7o4mmbq0gac2mrnd/xotiraxuxefepis.pdfIn PDF document text
  • http://grafiport.com/userfiles/file/20500153101.pdfIn PDF document text
  • http://cgpharma.in/cote_dor_import/admin/ckfinder/userfiles/files/detanaxikumipato.pdfIn PDF document text
  • http://coral-travel66.ru/admin/ckfinder/userfiles/files/71777295413.pdfIn PDF document text
  • https://themalc.org/files/file/911924135.pdfIn PDF document text
  • https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a7ee6e0bf8---56532114949.pdfIn PDF document text
  • https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/9r9lo8haed4vu8ulr9c7pqvv35/pisafazonokuzejijulemiwa.pdfIn PDF document text
  • http://aspbae.org/userfiles/file/250303595.pdfIn PDF document text
  • https://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/jqt01o9lu8mp9p8hg53db9uuj0/84510670992.pdfIn PDF document text
  • http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160721214cc5be---kemodedek.pdfIn PDF document text
  • https://regiefranchet.fr/userfiles/files/31853124646.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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