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://coretry.ru/uplcv?utm_term=stewart+calculus+4th+edition+pdf PDF link annotation

  • http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1613849e2a719b---53213053236.pdfIn PDF document text
  • https://eastmangroup.org/ckfinder/userfiles/files/suxaxuvemaziwopaku.pdfIn PDF document text
  • http://generaldistco.com/images/file/52531143620.pdfIn PDF document text
  • https://manage4.realtourvision.com/rtv/ckfinder/userfiles/images/files/zezolevufanumamejikom.pdfIn PDF document text
  • http://hb-hospital.com/file_upload/fck_upfile/file/47475351252.pdfIn PDF document text
  • https://www.channeloflove.com/ckfinder/userfiles/files/faxozu.pdfIn PDF document text
  • https://fiberglasssupplydepot.com/userfiles/files/58321127796.pdfIn PDF document text
  • http://tycoonmedical.com/userfiles/file/90552051021.pdfIn PDF document text
  • http://arrhythmiaclinic.com/userfiles/file/20210910045905.pdfIn PDF document text
  • http://rosg.net/sa_upload/userfiles/file/20210905115310.pdfIn PDF document text
  • http://harringtonassociateslaw.com/Test/JabzMedicalBillingService/userfiles/file/47761483059.pdfIn PDF document text
  • http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/2jk2uodhftkvi9r13p5f6mo9uu/58074624086.pdfIn PDF document text
  • https://tsydesign.com/userfiles/jws/files/41931667581.pdfIn PDF document text
  • http://speed-r.com/js/upload/files/45884238307.pdfIn PDF document text
  • https://mountainbrookbuilders.com/home/mountain/public_html/ckfinder/userfiles/files/zutoboluretipeno.pdfIn PDF document text
  • https://capecoralliving.com/media/file/29255154241.pdfIn PDF document text
  • http://myconnect-thailand.com/image/upload/File/guzevajeba.pdfIn PDF document text
  • http://kartywspomnien.pl/uploads/assets/file/34200506777.pdfIn PDF document text
  • http://brmxn.com/userfiles/file/20210907120235_vfugjd.pdfIn PDF document text
  • https://manhremhoangvan.com/wp-content/uploads/files/tifopozexozukavofow.pdfIn PDF document text
  • https://daulte.com/ckfinder/userfiles/files/58865025172.pdfIn PDF document text
  • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/161368d74cb870---80638109989.pdfIn PDF document text
  • http://omonetach.pl/foto/ilustracje/file/17147357563.pdfIn PDF document text
  • http://www.tiande-global.com/ckfinder/userfiles/files/88225093543.pdfIn PDF document text
  • http://chuanghuilaw.com/filespath/files/20210909145549.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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