Malicious PDF — malware analysis report

Heuristics 8

• 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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://pistant.ru/uplcv?utm_term=it+chapter+one+movie+download PDF link annotation

  • http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/ebee929887eb3caf1a74ea8112dce7eb/14373293849.pdfIn PDF document text
  • http://www.dkmodels.net/ckfinder/userfiles/files/32254355580.pdfIn PDF document text
  • https://oreopay57.com/ckfinder/userfiles/files/38699709322.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/ldoe5ajvqsjp1ub2ihar769841/70997327824.pdfIn PDF document text
  • https://habibitoursegypt.com/ckfinder/userfiles/files/61935402147.pdfIn PDF document text
  • http://jkbprivateiti.com/userfiles/file/17461389724.pdfIn PDF document text
  • http://flirtproducties.nl/ckfinder/userfiles/files/romalavuriw.pdfIn PDF document text
  • https://dazhonghua1688.com/ckfinder/userfiles/files/97719323208.pdfIn PDF document text
  • https://giasidaily.com/uploads/userfiles/file/31443105450.pdfIn PDF document text
  • http://npcbalkan.net/ckeditor/ckfinder/userfiles/files/4633293826.pdfIn PDF document text
  • https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/ccb45e1a49e5f505cadc770a52cc665d/vamemuf.pdfIn PDF document text
  • http://www.frank-diagn.hu/userfiles/files/fowikew.pdfIn PDF document text
  • http://gewald.ru/content/Files/62350340680.pdfIn PDF document text
  • http://detskypohar.cz/upload/file/5732129968.pdfIn PDF document text
  • https://www.colegiodomus.com.br/js/ckfinder/userfiles/files/42393374528.pdfIn PDF document text
  • https://www.wizzfizz.com.au/application/third_party/ckfinder/userfiles/files/siwedusunax.pdfIn PDF document text
  • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/1epmi9p78m4jcennl4787gspr5/fevubani.pdfIn PDF document text
  • https://mmagame.com/userfiles/file/53283340756.pdfIn PDF document text
  • http://digitalpolicycouncil.org/imagenes/file/givadukekusegixenuvo.pdfIn PDF document text
  • http://jl-vacuum.com/upload/files/9590024252.pdfIn PDF document text
  • https://waxparadise.pl/userfiles/file/buriwiwijagibixogi.pdfIn PDF document text
  • https://giga-tronics.com/userfiles/files/70694840278.pdfIn PDF document text
  • http://tuivaivietnam.com/uploads/files/88801114823.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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