Malicious PDF — malware analysis report

Heuristics 7

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://infrive.ru/uplcv?utm_term=gramatica+ingles+pdf+completo+download PDF link annotation

  • https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/1e1bb1137fd1d654ef81c4cd54a2abff/lepetivabibaduwated.pdfIn PDF document text
  • http://st-johnson.com/Uploadfiles/files/vesajonuxekezufagisagid.pdfIn PDF document text
  • https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/d46e3503c478822b6f1f57a5e28631e0/33563633535.pdfIn PDF document text
  • https://stehovani-ostrava.cz/static_pages_files/file/kojij.pdfIn PDF document text
  • https://billionbosses.com/ckfinder/userfiles/files/9281351072.pdfIn PDF document text
  • https://acronimocostanzo.com/userfiles/file/lebuzajower.pdfIn PDF document text
  • http://doyen.cc/images/upload/File/redoxufarakigizemojubo.pdfIn PDF document text
  • http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/jq0vee02lsvpsaeu2hp2d4egk4/15420346946.pdfIn PDF document text
  • http://wecans.net/_UploadFile/Images/file/duxukuxiromafofu.pdfIn PDF document text
  • http://wagnerfamilyreunion.com/clients/866685/File/razawepoxogolum.pdfIn PDF document text
  • http://canadanur.com/resimler/files/wimerekukerupa.pdfIn PDF document text
  • https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609f2a597d742---zofalorotobexejog.pdfIn PDF document text
  • http://sro52.ru/uploads/files/41196346952.pdfIn PDF document text
  • http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160840d9e29887---volewila.pdfIn PDF document text
  • http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160978049eb334---79501063295.pdfIn PDF document text
  • https://www.heracles-hotel.eu/wp-content/plugins/super-forms/uploads/php/files/v17ps9d7j40h7krr5ia5237reh/jenoxosuzinabafijotutewiw.pdfIn PDF document text
  • https://rainbowfurnitures.com/files/files/pajixewekijofenufabo.pdfIn PDF document text
  • https://envomask.com/wp-content/plugins/super-forms/uploads/php/files/1a6cce220f5c6809d0742a361f20ea2e/41057000633.pdfIn PDF document text
  • http://bluelakehomestay.com/uploads/image/files/pexenujoletipefo.pdfIn PDF document text
  • http://soft-pro.hr/upload/datoteke/63530806937.pdfIn PDF document text
  • http://topcudental.com/img/userfiles/files/36479125432.pdfIn PDF document text
  • http://penoplex24.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607dff270f30e---vuzebufugunelikuwi.pdfIn PDF document text
  • https://amenagementsoleil.com/wp-content/plugins/formcraft/file-upload/server/content/files/160777f337ed43---90534220442.pdfIn PDF document text
  • https://www.reachcast.ca/wp-content/plugins/super-forms/uploads/php/files/0c19a96d76296252ea9113d177af82fb/90806491873.pdfIn PDF document text
  • http://lovewhereyoulv.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/2050dad11bb516ef70cbde713f0ff9e4/wirewidubivirixusibe.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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