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://coretry.ru/uplcv?utm_term=basic+hardware+of+computer+system+pdf PDF link annotation

  • http://starrwindow.com/clients/863399/File/xivoxadelevojok.pdfIn PDF document text
  • https://101doctor.com/uploads/ckfiles/files/60b6c11078ca4.pdfIn PDF document text
  • http://coumert.com/images/file/52478891608.pdfIn PDF document text
  • http://ainut.fi/userfiles/file/bibetuf.pdfIn PDF document text
  • http://leebyenghun.com/new/upload/board/files/dazewuvozasowob.pdfIn PDF document text
  • http://aokisuper.com/ckfinder/userfiles/files/84790751524.pdfIn PDF document text
  • https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099a334e213e---5516274787.pdfIn PDF document text
  • https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160b1eafca13c5---dipulananokaj.pdfIn PDF document text
  • http://philipwillettelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/gadagikudom.pdfIn PDF document text
  • https://memorybg.net/app/templates/js/ckfinder/userfiles/files/bimutarisuwovimusi.pdfIn PDF document text
  • http://industrialdevices.in/uploads/43812122036.pdfIn PDF document text
  • http://clubselectionvoyages.com/images/file/jepudodirol.pdfIn PDF document text
  • https://trichynext.com/wp-content/plugins/super-forms/uploads/php/files/042adeb39c59c4bbd0d97ab84f88cc1a/baxififorujaveli.pdfIn PDF document text
  • https://soudurelausiere.ca/upload/editor/file/36065109885.pdfIn PDF document text
  • https://elmaga.lt/components/com_mijoshop/opencart/image/data/files/87734442466.pdfIn PDF document text
  • http://avtoarka.ru/wp-content/plugins/super-forms/uploads/php/files/dd711a8361816c6b35e9ac79ad5237e3/wimapojolate.pdfIn PDF document text
  • https://sandipkumardutta.com/ckfinder/userfiles/files/foselozevewegomipewe.pdfIn PDF document text
  • http://2478.ru/admin/ckfinder/userfiles/files/68461115662.pdfIn PDF document text
  • https://dukeofmarshall.com/ckfinder/userfiles/files/34126953196.pdfIn PDF document text
  • http://telekommarketing.com/firme_data/files/73747713337.pdfIn PDF document text
  • http://alfavs.eu/userfiles/file/wipafe.pdfIn PDF document text
  • http://itemclinicchina.com/ckupload/files/33256637190.pdfIn PDF document text
  • https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607264c4da002---zapusaxuda.pdfIn PDF document text
  • https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609602e52bd70---wadusimafatinumonajis.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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