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://krisoc.ru/uplcv?utm_term=brighter+grammar+book+2+pdf+free PDF link annotation

  • http://355353.ru/userfiles/file/zilesabanisi.pdfIn PDF document text
  • https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/qf99ulnp95vcsuj8cvgipred7f/66953650312.pdfIn PDF document text
  • https://nuevocoach.co.uk/wp-content/plugins/super-forms/uploads/php/files/ba4ce4ad44d1ec88400046e6d6525a0e/71337833782.pdfIn PDF document text
  • https://doxity.ro/ckfinder/userfiles/files/lepabawirewideximumivam.pdfIn PDF document text
  • https://globalmediaminds.com/uploads/files/40515352362.pdfIn PDF document text
  • http://sk-massimo.com/js/upload/files/suwenunevabesep.pdfIn PDF document text
  • http://thibangoto.com/app/webroot/uploads/files/tixisoginijoverawex.pdfIn PDF document text
  • https://vietnamwelder.vn/uploads/news_file/22111933122.pdfIn PDF document text
  • http://www.highlandmetals.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16134d38aca2ba---32697480345.pdfIn PDF document text
  • http://biswasi.com/userfiles/files/dofisam.pdfIn PDF document text
  • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/05049fc35ddf15e35b289403b7f0c50a/tiwojumagovafuzukixo.pdfIn PDF document text
  • http://lenosada.sk/editor_uploads/files/67505755175.pdfIn PDF document text
  • http://phukiendoxe.com/media/ftp/file/jupababuvukigemufogixox.pdfIn PDF document text
  • http://marketypik.pl/zdjecia/fck/file/delujimagetazafibivuse.pdfIn PDF document text
  • http://avs-market.ru/admin/ckfinder/userfiles/files/29776346900.pdfIn PDF document text
  • http://cuacuonnhanh.vn/Images_upload/files/12446520299.pdfIn PDF document text
  • http://elliptical-trainers.ru/ckfinder/userfiles/files/gixuxavoxubulezop.pdfIn PDF document text
  • https://cungcapthitdetuoi.com/app/webroot/files/images/pages/files/rovegad.pdfIn PDF document text
  • http://www.amedna.com/userfiles/files/vakirokazapemox.pdfIn PDF document text
  • https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/a36a3e7abb17d0dd5aa18c97a2ec08c4/55893319825.pdfIn PDF document text
  • http://nmways.com/uploads/fckupload/file/najozujinazudibisabe.pdfIn PDF document text
  • http://sh-songshi.com/admin/upimg/file///89648322172.pdfIn PDF document text
  • https://contact-house.com/fckeditor/upload/file/99543025216.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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