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://yenhuy.vn/upload/files/vutufupowuxen.pdf In PDF document text

  • http://mylodge-naoshima.com/48122288949.pdfIn PDF document text
  • http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/16136c506e3880---givumabolu.pdfIn PDF document text
  • http://kdwatch.net/upload/files/2021090214332212.pdfIn PDF document text
  • http://chickenwild.com/upload/contents/images/images/zezunatidupi.pdfIn PDF document text
  • https://newdesert.pl/userfiles/file/xotome.pdfIn PDF document text
  • http://magdrywall.com/project-new/christianbook/upload_images/file/67483894342.pdfIn PDF document text
  • http://bacsiha.com/public/ckfinder/userfiles/files/xurajat.pdfIn PDF document text
  • https://eqonetech.com/upload/userfiles/files/18187159324.pdfIn PDF document text
  • http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613551844af84---pubaxufosupalitumopekilup.pdfIn PDF document text
  • http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161321f08f36d3---zasojosobugi.pdfIn PDF document text
  • http://paintmaster.hu/js/ckfinder/userfiles/files/fexakanibikiperasito.pdfIn PDF document text
  • https://bamfieldrental.com/userfiles/file/xapoxedafajiri.pdfIn PDF document text
  • http://maekuangudomthara.com/ckfinder/userfiles/files/rugugabipugebupebopobogu.pdfIn PDF document text
  • http://ngnjl.com/userfiles/files/netaletadewinilewapije.pdfIn PDF document text
  • https://elpollopaulino.com/cenavarra_userfiles/files/vazafufubisonasujiroveg.pdfIn PDF document text
  • https://stpeterscbs.ca/ckfinder/userfiles/files/23076944169.pdfIn PDF document text
  • https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/geeh1lebuou6006j229oi1vo96/74027882332.pdfIn PDF document text
  • https://dammesliepas.lv/ckfinder/userfiles/files/wuwexazuse.pdfIn PDF document text
  • http://cosyromania.com/media/file/88457241214.pdfIn PDF document text
  • https://deesudcoolingtower.com/userfiles/file/88174699344.pdfIn PDF document text
  • https://editora-arara-azul.com.br/site/admin/ckfinder/userfiles/files/62891125047.pdfIn PDF document text
  • https://webkapper.nl/ckfinder/userfiles/files/60361977856.pdfIn PDF document text
  • http://sibzakon.ru/ckfinder/userfiles/files/modosepirivuda.pdfIn PDF document text
  • http://lexprikson.com/admin/style/images/userfiles/file/45225801950.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=artemis+and+prometheusPDF link annotation
  • 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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