Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://coretry.ru/uplcv?utm_term=free+download+software+convert+word+to+pdf PDF link annotation

  • http://richmediahouse.com/admin/uploads/file/11724798205.pdfIn PDF document text
  • http://castudio.eu/userfiles/files/28771340956.pdfIn PDF document text
  • https://csom.cz/wp-content/plugins/super-forms/uploads/php/files/cc68f6f64507154d5bc6145dde69020e/34275688212.pdfIn PDF document text
  • https://profipreklady.cz/www/ckfinder/userfiles/files/79315080710.pdfIn PDF document text
  • https://zweiund40.com/wp-content/plugins/super-forms/uploads/php/files/4kbhc168egj7d0q88luud08rkn/fatizivipovasaka.pdfIn PDF document text
  • https://asfus.net/virgsurv/userfiles/file/rusofunanasunes.pdfIn PDF document text
  • http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bcd16f1e56f---gugetitejisodu.pdfIn PDF document text
  • https://pluviaterra.mx/wp-content/plugins/super-forms/uploads/php/files/495b48575028f7b543810185281f8648/betadeserotebopovuzu.pdfIn PDF document text
  • https://www.treehousecare.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606eee684f511---fazutikiz.pdfIn PDF document text
  • http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160946a3917b72---76705752067.pdfIn PDF document text
  • http://ccforum.kr/uploads/file/1621646963.pdfIn PDF document text
  • http://tjsijiqing.com/ckfinder/userfiles/files/2021/0603/df3583111c81381443df886d1d92d921.pdfIn PDF document text
  • http://janjoling.com/public/ckfinder/userfiles/files/jalerinirumozakusixani.pdfIn PDF document text
  • https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16092b1cb20237---49652069866.pdfIn PDF document text
  • http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1609baca7d9153---vufitagomepax.pdfIn PDF document text
  • https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160ac4960a4c8c---jiziroxosogimogova.pdfIn PDF document text
  • http://jyjjapan.jp/files/ckeditor/files/45437961481.pdfIn PDF document text
  • http://www.anjhimayath.com/upload/file/70593128566.pdfIn PDF document text
  • http://engroupe.ca/aym_image/files/gilixutiwikuwogajur.pdfIn PDF document text
  • https://10playsolutions.com/clients/softklk/documents/_articles_/file/17403807154.pdfIn PDF document text
  • http://gachbinhduong.com/upload/file/tiluv.pdfIn PDF document text
  • https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/cb3a4bff99fc94e5a0d433dceed70abe/tuzetaxexowakivosogiliwo.pdfIn PDF document text
  • http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/fg50t1klfmm8bu2flpjdpfp180/66065371544.pdfIn PDF document text
  • https://weishinclinic.com/uploads/files/202108141806565231.pdfIn PDF document text
  • https://cgeminfos.ma/upload/file/12163143088.pdfIn PDF document text
  • https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/16078ccd0c8b6f---dexamine.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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