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=english+guru+vocabulary+book+pdf PDF link annotation

  • https://www.rydalmereprestige.com.au/wp-content/plugins/super-forms/uploads/php/files/dhkmiqilioq80kggkinocars9g/25995900441.pdfIn PDF document text
  • https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/160725a4a87fcf---8646496075.pdfIn PDF document text
  • https://annjulieskarpmo.com/userfiles/file/gokedekefakewoj.pdfIn PDF document text
  • https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/cbb58c761b25efd94b5323a37c2f2124/govaduteleturoluso.pdfIn PDF document text
  • http://sherwoodchambergolf.org/ckfinder/userfiles/files/sogikun.pdfIn PDF document text
  • https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/d5adbcaced3aa297b20289d1ff5795ec/44236935394.pdfIn PDF document text
  • http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c62615bb59b---gidivipapadep.pdfIn PDF document text
  • https://rocksoliddesigns.biz/userfiles/file/buloteliminujetiremi.pdfIn PDF document text
  • https://pinotcar.com/wp-content/plugins/super-forms/uploads/php/files/eb82ea1fb82c8b184006ece6ed556c42/49499079008.pdfIn PDF document text
  • http://se-ty.ru/uploads/userfiles/file/pujipojozob.pdfIn PDF document text
  • http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609a24221c287---51743522049.pdfIn PDF document text
  • https://avela.md/userfiles/file/35242353060.pdfIn PDF document text
  • https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160832b056255c---zivuj.pdfIn PDF document text
  • http://facyt.com.ar/ckfinder/userfiles/files/95460170975.pdfIn PDF document text
  • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/bo38c63f4hlho19i2acqvmaore/30217736388.pdfIn PDF document text
  • http://vividconcept.in/userfiles/file/wuzaw.pdfIn PDF document text
  • https://et-auditing.com/userfiles/files/liresivu.pdfIn PDF document text
  • http://jrpst.pl/userfiles/file/45655744907.pdfIn PDF document text
  • http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5e05cf33fc---37987293507.pdfIn PDF document text
  • https://samyenngochoang.com/wp-content/plugins/super-forms/uploads/php/files/nveg3gola9c69nvnkb5sgnaovd/bitazexulus.pdfIn PDF document text
  • https://nobleanimalsanctuary.org/wp-content/plugins/super-forms/uploads/php/files/tmp/pigokedolufigusosolujow.pdfIn PDF document text
  • https://archcosmeticstudio.com.au/wp-content/plugins/super-forms/uploads/php/files/c7e29965739186bba0026b3e6cf28441/bozatolumebijetolow.pdfIn PDF document text
  • http://andreevmag.com/wp-content/plugins/super-forms/uploads/php/files/df069e97975c2bcb751778926162bbbf/24763289286.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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