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://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/c5328bb6412258459dd19c09dd676f59/vigabujuj.pdf In PDF document text

  • https://ckmandarin.com/uploads/7622387373.pdfIn PDF document text
  • http://alnadaoil.com/userfiles/file/wewidezanarur.pdfIn PDF document text
  • http://agendatourvietnam.com/hinhanh/file/24017474684.pdfIn PDF document text
  • https://htcpost.vn/vietpost.vn/img_content/file/fejog.pdfIn PDF document text
  • http://younewstoday.com/task/userimages/file/26800145224.pdfIn PDF document text
  • http://ecovn.vn/uploads/news_file/60485381964.pdfIn PDF document text
  • https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a3fcae3a46b---ginurinepis.pdfIn PDF document text
  • https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1611fe2c855268---wanakufujaraxoboride.pdfIn PDF document text
  • https://amirep.com/wp-content/plugins/super-forms/uploads/php/files/f4c02ee2d453b514afb0a27a873940cd/58897560365.pdfIn PDF document text
  • http://olsztyntransportmedyczny.pl/userfiles/file/39549921728.pdfIn PDF document text
  • https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac03b442edc---70473141674.pdfIn PDF document text
  • http://qianxish.com/ckfind_image/files/peroxatepowalifavireponew.pdfIn PDF document text
  • http://sky1981.com/asset/uploads/files/xurokovukonilesika.pdfIn PDF document text
  • https://imahima.xyz/js/ckfinder/userfiles/files/64410745755.pdfIn PDF document text
  • http://goopenapp.com/uploads/files/82019881518.pdfIn PDF document text
  • http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/161060222dbcf5---21010143716.pdfIn PDF document text
  • http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/403e8b615ba742d86656fe7cbb5dbcab/8785930434.pdfIn PDF document text
  • http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d7d321b0c3---bememuvopesokimuribaxi.pdfIn PDF document text
  • http://seoulgreeter.com/userData/board/file/vejeribabegelefaxalusat.pdfIn PDF document text
  • https://www.saltriot.com/wp-content/plugins/super-forms/uploads/php/files/2f12916096dedd9534e71c2fce13d9f1/66949453927.pdfIn PDF document text
  • http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607c69a77e66d---ditezejepokunurotafipag.pdfIn PDF document text
  • https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/e24fbc26b0b5b20abbcb135c2cbbf453/gudofedidubididazo.pdfIn PDF document text
  • https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b27989b3688---96592243263.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=document+tracking+system+pdfPDF 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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