Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• Invisible/repeated PDF links deliver payload file critical PDF_REPEATED_PAYLOAD_LINK_LURE
  PDF uses invisible link annotations and points to a direct payload download. Repeated invisible links or lure-like payload names such as document/unlock/verify archives match malware-delivery PDF carriers where the page is only a prompt and the real payload is fetched from the linked URL.
• 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.
• 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://ketchas.ru/uplcv?utm_term=program+files+tracker+software+pdf+viewer+pdfxvwer.exe In PDF document text

  • https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a052996d7da---85215202759.pdfIn PDF document text
  • http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/1611d3d652109b---zazedebitedowilemid.pdfIn PDF document text
  • http://yakutiaprime.ru/SITE/files/editor/file/39170365886.pdfIn PDF document text
  • https://its-bulgaria.bg/files/file/37716246412.pdfIn PDF document text
  • http://eko-inwest.eu/upload/file/46207280651.pdfIn PDF document text
  • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a24fd5c4f9e---naxezoboxidud.pdfIn PDF document text
  • http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16091a5908e945---dosovo.pdfIn PDF document text
  • http://softwarefactory.nl/images/file/18579065528.pdfIn PDF document text
  • http://ordineveterinarivenezia.eu/userfiles/files/72108899551.pdfIn PDF document text
  • http://bensonlandscape.com/editorData/file/tixezirasuzo.pdfIn PDF document text
  • https://cursosadistanciayonline.com/medios/files/nijuwiwodexosawuzidatoda.pdfIn PDF document text
  • http://cnc-soustruzeni.cz/files/file/32989510523.pdfIn PDF document text
  • http://ahcxdq.com/uploads/file/300425401189.pdfIn PDF document text
  • http://andrelandberg.com/userfiles/file/moregomumidija.pdfIn PDF document text
  • http://ghinelliarchitettura.it/userfiles/files/70250725632.pdfIn PDF document text
  • http://shangrilatheshow.com/ckfinder/userfiles/files/54099632994.pdfIn PDF document text
  • https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/8ik37fr9ruvsiv6emh44gm1v86/21469121426.pdfIn PDF document text
  • http://jingchengs.com/jingchengs/ckfinder/files/20210807115312.pdfIn PDF document text
  • https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/bd3233199d3d16eb32bdbc45bf4b7a6a/42261785139.pdfIn PDF document text
  • https://epiphanych.com/images/file/solopi.pdfIn PDF document text
  • http://15fratrowreunion.com/clients/2/2b/2b18ccadde375fd95e9ac2d5db5aaa67/File/xadezuxijuputepepekutekuz.pdfIn PDF document text
  • https://evg-prague.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16094c1f918092---popaferijuzupewudaru.pdfIn PDF document text
  • http://mytaylormadefamilyusa.com/clients/864113/File/nigoridepufafoberof.pdfIn PDF document text
  • http://mamnonhieutrung.edu.vn/ckfinder/userfiles/files/37842139234.pdfIn PDF document text
  • https://flardochform.se/userfiles/file/xikobuxised.pdfIn PDF document text
  • http://ccswcd.com/userfiles/file/62824941784.pdfIn PDF document text
  • http://matstravel.ru/userfiles/file/numizusutonewelas.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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