Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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=how+are+chemical+formulas+of+binary+ionic+compounds+written PDF link annotation

  • http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e82baea19b1---5756800862.pdfIn PDF document text
  • http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16075d326a1873---77729583804.pdfIn PDF document text
  • http://diversecityuk.com/userfiles/file/befalipepuvajebegileja.pdfIn PDF document text
  • http://ecbpolska.pl/wp-content/plugins/super-forms/uploads/php/files/a547aafd818d0d5bcc4a7da1a0617735/dapakovuge.pdfIn PDF document text
  • https://pabxlg.com/userfiles/file/28692149781.pdfIn PDF document text
  • https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/c9f77be7e4d23de439055d4fd5618d59/rudebazatobimatadexofozal.pdfIn PDF document text
  • http://mgtofubbq.com/uploads/files/53784684339.pdfIn PDF document text
  • https://guanlai.tw/uploads//files/202108091751048284.pdfIn PDF document text
  • http://www.mkkdigital.pt/wp-content/plugins/formcraft/file-upload/server/content/files/160943a4d58546---6672137416.pdfIn PDF document text
  • https://anduong-nhatthanh.com/uploads/news_file/25945325012.pdfIn PDF document text
  • https://lee-trading.tw/archive/upload/files/mobazinagimagotomage.pdfIn PDF document text
  • http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c3a97daccde---93639933382.pdfIn PDF document text
  • https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7823f5b210---malivajos.pdfIn PDF document text
  • http://harmonie-avion.fr/actualite/files/95586622157.pdfIn PDF document text
  • https://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/6040369813f0479f9bb0980512d5c14e/53206640811.pdfIn PDF document text
  • https://kamber.dk/wp-content/plugins/super-forms/uploads/php/files/5e0bc9054100900590d1dc049847034d/puvemozelome.pdfIn PDF document text
  • http://www.kzhep.in.ua/wp-content/plugins/super-forms/uploads/php/files/0ef9ssvu4aqo804bthmal2q102/jegivaviwiterolerajoga.pdfIn PDF document text
  • http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/160c98d109d62b---27419712634.pdfIn PDF document text
  • http://www.celso.org/download/37022543961.pdfIn PDF document text
  • https://alnahamgroup.com/userfiles/file/tekom.pdfIn PDF document text
  • http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16084a82a0966b---dariragaweluzirebemadox.pdfIn PDF document text
  • https://cribpointonline.org/cribpointonline/userimages/file/5320598979.pdfIn PDF document text
  • http://hk-sai.com/ckfinder/userfiles/files/warajevetuzagosi.pdfIn PDF document text
  • https://bangprice.com/bangprice.com/beta/cms_image/file/jumunuladesewalineb.pdfIn PDF document text
  • http://cdmvt.cz/sites/default/files/40558201467.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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