Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://irlanc.ru/uplcv?utm_term=linear+algebra+done+wrong+solutions+manual PDF link annotation

  • http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160b5924911797---52136910469.pdfIn PDF document text
  • http://www.gc-antey.ru/ckfinder/userfiles/files/42596871583.pdfIn PDF document text
  • https://audreyheselmans.com/_files/file/wililubuporoz.pdfIn PDF document text
  • https://lacgl.org/upload/editor/file/85445772596.pdfIn PDF document text
  • http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/2otkqrpes1339qp29kcc5jaln7/66108351527.pdfIn PDF document text
  • https://gobelsprofil.com/upload/files/bukisefumawi.pdfIn PDF document text
  • http://tootingtaxi.com/survey/userfiles/files/zutanofi.pdfIn PDF document text
  • http://rockpapersun.com/upload_mce_image/file/rikak.pdfIn PDF document text
  • https://premiersuli.hu/files/files/segusazutilupi.pdfIn PDF document text
  • https://murtenhof.ch/userfiles/files/vuvivasubipet.pdfIn PDF document text
  • https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/cb33654a56025ab8db1923d353bbe4ca/soraxaxo.pdfIn PDF document text
  • https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094faae9017d---16376726116.pdfIn PDF document text
  • http://leakefamilyreunion.com/clients/63964/File/56793911131.pdfIn PDF document text
  • https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609636c39ffe0---miregupukedaxenojuka.pdfIn PDF document text
  • http://autosvanbeek.nl/mindcms/js/ckf/userfiles/files/xudawogubedu.pdfIn PDF document text
  • https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/9b73ef2c8bea236787b6f60147646558/4560162108.pdfIn PDF document text
  • http://nessium.fr/userfiles/file/nukajatiremutigabope.pdfIn PDF document text
  • http://clubselectionvoyages.com/images/file/94053744834.pdfIn PDF document text
  • https://ctsgroups.asia/images/file/tijopevukazugedatokokapew.pdfIn PDF document text
  • http://campingwithconvenience.com/files/files/luwupafuvujozubobutiteja.pdfIn PDF document text
  • https://southernlightingsource.com/wp-content/plugins/super-forms/uploads/php/files/4e306363580b24a3f13857473640342d/2226508866.pdfIn PDF document text
  • https://minipowerpack.net/upload/files/fijaxosiliwuwiwefepibodof.pdfIn PDF document text
  • https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/fb00psavbe4380csknkev0608d/51736580498.pdfIn PDF document text
  • https://sfilatinogourmet.it/file/75341651505.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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