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://harmony.im/userfiles/file/83745742318.pdf In PDF document text

  • http://sten.kr/club/data/userfiles/file/20210907175716.pdfIn PDF document text
  • https://www.andreivieru.com/ckfinder/userfiles/files/66849663923.pdfIn PDF document text
  • https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16140162005571---95594732014.pdfIn PDF document text
  • http://daechienglishpark.com/ckfinder/userfiles/files/safeniwi.pdfIn PDF document text
  • https://suruburi.net/mm/file/72378036107.pdfIn PDF document text
  • http://trungtinjsc.vn/upload/FCK/file/dawaxitanenadepixaxiw.pdfIn PDF document text
  • http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/161470d9b681bf---lukixobuketipovakis.pdfIn PDF document text
  • http://hiredriver.com/uploads/assets/files/60210763203.pdfIn PDF document text
  • http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16147bcdb60ea0---54127503980.pdfIn PDF document text
  • http://tw-echen.com/uploads/files/202109111243489616.pdfIn PDF document text
  • http://www.naturhalles.fr/fckeditor/userfiles/file/96066519668.pdfIn PDF document text
  • https://aiwcecckolkata.org/FCKeditor/file/57661068851.pdfIn PDF document text
  • http://immobilier-valence-agen.com/userfiles/file/32995205961.pdfIn PDF document text
  • http://citra.cl/userfiles/file/farezudanolinonubupi.pdfIn PDF document text
  • https://noursportevents.com/wheelmarine/userfiles/file/2723840288.pdfIn PDF document text
  • https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/5da541f15c8681f9d253ed04a92d9227/35883317972.pdfIn PDF document text
  • https://pingthye.com/userfiles/files/7681093462.pdfIn PDF document text
  • http://restavratorstvo.com/ckfinder/userfiles/files/22265758310.pdfIn PDF document text
  • http://ky-auto.com/uploadfile/files/26085517033.pdfIn PDF document text
  • https://singlespeed-switzerland.ch/userfiles/files/tixotagetudabi.pdfIn PDF document text
  • https://cancelaria.pl/galeria/file/kiwiwoxazizimoga.pdfIn PDF document text
  • http://barrybusiness-crm.com/ressource/devis-photo/files/duraxusukufu.pdfIn PDF document text
  • http://s8radziejowice-paszkow.pl/userfiles/file/nezagaj.pdfIn PDF document text
  • https://doanhnghiepvietnam.niengiamdoanhnghiep.vn/img_duhoc/files/xubakuzeki.pdfIn PDF document text
  • https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/8ea7f5a5391d8fce78818e437e46274d/bososodojefifo.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=fire+tv+stick+4k+play+storePDF link annotation
  • 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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