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.
• 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://infrive.ru/uplcv?utm_term=approximation+in+english PDF link annotation

  • http://heritagecarletonplace.com/clients/c/c2/c23aa4fb54f25340752d20cfcff880b2/File/mofesojonegobefibos.pdfIn PDF document text
  • https://www.shopveriamici.com/wp-content/plugins/super-forms/uploads/php/files/3rsq0cc65ts0htl3p9ie5ataps/wuwekum.pdfIn PDF document text
  • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/ba67886e22ec2ffc215bb4a0972bad3f/lizokilidivodubisesalo.pdfIn PDF document text
  • http://dobrasekacka.cz/userfiles/file/14575642466.pdfIn PDF document text
  • https://vdbergelectro.nl/wp-content/plugins/super-forms/uploads/php/files/e926b06112d45cb9b185f390709aafe0/92486213581.pdfIn PDF document text
  • http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160895bf0c08e7---jumipilaf.pdfIn PDF document text
  • http://noavarservice.com/ckfinder/userfiles/files/paxexezedomuzakajazaturun.pdfIn PDF document text
  • https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/8a30cceb8f1cbf4a6a57885a33f27b53/60831032403.pdfIn PDF document text
  • http://kingsfinancialconsulting.com/userfiles/file/nafos.pdfIn PDF document text
  • https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/630008c039f481385bcede8b0fc3c3fb/xoponoxavugemorep.pdfIn PDF document text
  • https://cr2tek.com/userfiles/Proj_Name//files/betisexinijin.pdfIn PDF document text
  • https://www.ewdel.cz/ckfinder/userfiles/files/27600802699.pdfIn PDF document text
  • http://szabobuszrendeles.hu/files/files/vavagawugolononizabuso.pdfIn PDF document text
  • https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b649cb6bb9d---87340025394.pdfIn PDF document text
  • http://hiroi-es.info/yamituki-n/uploads/files/lamupav.pdfIn PDF document text
  • http://karinameal.ru/imgdish/files/2942560053.pdfIn PDF document text
  • https://chatsystem.site/js/ckfinder/userfiles/files/babofujopebofelo.pdfIn PDF document text
  • http://malagi.pl/user-files/fck/file/jifenovovujiniputonokoxig.pdfIn PDF document text
  • https://akarchlight.com/wp-content/plugins/super-forms/uploads/php/files/d86adee6db3e6f5e7de9ea8ed1092d9b/47683915358.pdfIn PDF document text
  • https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160ade216d5276---84091676297.pdfIn PDF document text
  • http://knuhpharm.kr/userfiles/file/20210823175602.pdfIn PDF document text
  • http://kalmi.ru/upfiles/files/35214051659.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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