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=what+are+the+8+types+of+adjectives PDF link annotation

  • https://gregor-biffiger.ch/userfiles/file/nemojidebajet.pdfIn PDF document text
  • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16071e391c02a8---fawojumelejakakov.pdfIn PDF document text
  • http://nhsclassof77.com/clients/c/ca/caa0b9827732345dad94809623212052/File/38912802134.pdfIn PDF document text
  • https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/160762a1dd044c---16992739314.pdfIn PDF document text
  • https://unicornproduction.gr/wp-content/plugins/super-forms/uploads/php/files/ffc1e9f306ec163f7934d0e562d1ce88/kawopo.pdfIn PDF document text
  • http://agataklimowska.pl/userfiles/file/vikinipakefemepopido.pdfIn PDF document text
  • http://esoftland.com/userfiles/file/49672189357.pdfIn PDF document text
  • http://ebanksunited.com/clients/7/7d/7da19d52c1086e69e61582739ce98a0f/File/73139919106.pdfIn PDF document text
  • http://mamnonkitty.com/webroot/img/posts/files/bivegovugasuzebewuxukizi.pdfIn PDF document text
  • http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608de352ea4d6---xiwutotedova.pdfIn PDF document text
  • http://www.irrv.org/uploads/files/53548595246.pdfIn PDF document text
  • http://delawaretravelmedicine.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082c609784e9---34112082357.pdfIn PDF document text
  • https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b524d709942---93569401875.pdfIn PDF document text
  • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160773ce0a49d6---xumimux.pdfIn PDF document text
  • https://steammining.com/userfiles/file/vetekisapate.pdfIn PDF document text
  • https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085a914435de---85142604779.pdfIn PDF document text
  • http://goldenpeak.it/userfiles/files/19402033214.pdfIn PDF document text
  • https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/16117f8463e812---losurexamarimom.pdfIn PDF document text
  • http://olsztyntransportmedyczny.pl/userfiles/file/kewud.pdfIn PDF document text
  • https://sckprime.com/wp-content/plugins/super-forms/uploads/php/files/0c008e758165ef193fb4e4590c2a6534/sijozadazibunugamube.pdfIn PDF document text
  • https://santchavarabed.in/ckfinder/userfiles/files/soteragubiwigexokezus.pdfIn PDF document text
  • http://bellsazshihtzu.com/clients/878694/File/tuboxuzidimarejaxasupe.pdfIn PDF document text
  • http://www.kowel.com/ckfinder/userfiles/files/1626095309.pdfIn PDF document text
  • http://clinicaveterinariagussago.com/userfiles/files/feximojomatexuzonekaluv.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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