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://clinic4lab.com/upload/ckfinder_temp/files/20210624141931.pdf In PDF document text

  • http://2016montemayorreunion.com/clients/e/e5/e530e98a7ee505477716bae2fe71cdef/File/kesolotowubosatuzew.pdfIn PDF document text
  • http://anticacarsulaeborzoi.eu/userfiles/files/29931540424.pdfIn PDF document text
  • https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf8e04f1a00---xizariwime.pdfIn PDF document text
  • http://vishwkarmaenterprises.com/webroot/img/userfiles/files/tenimobe.pdfIn PDF document text
  • https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/1lmjjv4ss2ejsbtls6bichr3fc/61909155386.pdfIn PDF document text
  • http://forter.vn/hinhanh/file/94945876605.pdfIn PDF document text
  • https://maydangson.com/vietkiendo/upload/file/pemor.pdfIn PDF document text
  • https://bem-sa.com/img/file/miravibebuteluxosudodoweg.pdfIn PDF document text
  • https://decoveinvestment.com/userfiles/file/tupuvijo.pdfIn PDF document text
  • http://lebo1977.com/clients/7/7f/7f96701a3ad848a090446b6ea7dc17b1/File/sekunilovaz.pdfIn PDF document text
  • https://cald-lighting.com/wp-content/plugins/super-forms/uploads/php/files/e3b8be3122b02b9c4c92634d066afad3/pekas.pdfIn PDF document text
  • https://gulfsupremesa.com/ckfinder/userfiles/files/wemevefekuzulotegoruter.pdfIn PDF document text
  • http://zuche0551.com/upload/file/62058467387.pdfIn PDF document text
  • http://battlegrouponline.com/app/webroot/js/ckfinder/userfiles/files/9495936996.pdfIn PDF document text
  • http://www.sindafaz.com.br/admin/editor/ckfinder/userfiles/files/61329518505.pdfIn PDF document text
  • http://obrienbuilders.com/userfiles/file/suwaji.pdfIn PDF document text
  • http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1611417d3cd7a4---gizogutanuposovunipol.pdfIn PDF document text
  • http://nakajima-ya.com/upload/save_image/files/medaxejapobedusaxa.pdfIn PDF document text
  • https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/1553c5f862dbd40f9d128575e779c351/lefesusoxutek.pdfIn PDF document text
  • http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/0c547f461af53bfb1c4dea8e133d3e69/newunad.pdfIn PDF document text
  • http://ediljolli.com/userfiles/files/lofukusomipixanunadaz.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e93e39bacd---fagabesumoz.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=adobe+pdf+reader+download+apkPDF link annotation
  • 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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