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://crewmak.ru/uplcv?utm_term=the+visitor+game+download+android PDF link annotation

  • http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/kaft54uvrv444f9opudbcq8ifk/81362758213.pdfIn PDF document text
  • http://ambulatorioveterinariocigliano.com/userfiles/files/nabovuzuzub.pdfIn PDF document text
  • http://viral-list-machine.com/ckfinder/userfiles/publics/files/43029093740.pdfIn PDF document text
  • http://video-cycling.de/files/file/33080275604.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cb74b51298---22145689859.pdfIn PDF document text
  • https://martabaktelor.com/contents/files/fapepir.pdfIn PDF document text
  • http://cn-daomeng.com/upload/userfiles/files/9bf99bbb3c91c58e03523e26c1643d5a.pdfIn PDF document text
  • http://christschoolblr.in/userfiles/file/votafitaxoviwusiromapolo.pdfIn PDF document text
  • http://garmaclima.com/uploads/ckfinder/files/34188506990.pdfIn PDF document text
  • http://monthclean.com/uploads/files/202109060717318418.pdfIn PDF document text
  • https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130c4134e228---tulizomago.pdfIn PDF document text
  • http://edwindijk.nl/home/edijk/domains/edwindijk.nl/public_html/uploads/file/7675819615.pdfIn PDF document text
  • http://sooam.com/files/fckeditor/file/336856650613b51ec3cdb8.pdfIn PDF document text
  • https://alkathirilaw.com/userfiles/files/jerutifefefakavogafe.pdfIn PDF document text
  • https://underworldgear.com/admin/images/fckImg/file/66120346406.pdfIn PDF document text
  • http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161353088c2a9f---27580741225.pdfIn PDF document text
  • https://hk-delight.com/UploadFiles/file/42510437776.pdfIn PDF document text
  • http://rucodelniza.ru/userfiles/file/supeniberasenu.pdfIn PDF document text
  • http://vipforiraq.com/userfiles/files/46162101583.pdfIn PDF document text
  • https://girl0229960192.com/upload/users/files/lejon.pdfIn PDF document text
  • https://viboot.com/ckfinder/userfiles/files/makepoxipufoxake.pdfIn PDF document text
  • https://www.jancsoalapitvany.hu/ckfinder/userfiles/files/45145082871.pdfIn PDF document text
  • http://originalcheck.it/public/img_admin/file///86587978939.pdfIn PDF document text
  • https://blsautomation.com/ckfinder/userfiles/files/botomija.pdfIn PDF document text
  • https://quangcaonoithatgiahung.com/admin/webroot/upload/image/files/86457079520.pdfIn PDF document text
  • http://www.martiusstaden.org.br/js/ckfinder/userfiles/files/40832736411.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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