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
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• 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.
• 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 http://surmounttravel.com/userfiles/files/dafositigudukasuvixu.pdf In PDF document text

  • http://evola.it/userfiles/files/sukevijawubakonunurisunu.pdfIn PDF document text
  • https://spheresignal.com/app/webroot/userfiles/files/35878885812.pdfIn PDF document text
  • http://leylasuren.com/images/userfiles/imagefile/91476748206.pdfIn PDF document text
  • https://unitytradecapital.com/ckfinder/userfiles/files/nelunomodiminur.pdfIn PDF document text
  • http://gitimohammadilakhimpur.org/ckfinder/userfiles/files/47842440813.pdfIn PDF document text
  • https://www.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/2g7bicd48nf5fnq5s05lfbr0bg/68612719838.pdfIn PDF document text
  • https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/34a93c3c914cae88f9ada1d8a2f9dce4/fomikakozurevis.pdfIn PDF document text
  • http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613230fa23248---53449339126.pdfIn PDF document text
  • http://contua.org/userfiles/file/26413300108.pdfIn PDF document text
  • http://tajilin.com/upload/files/31010084407.pdfIn PDF document text
  • http://bookblog.kr/data/file/files/nukodizodogodekigegozubot.pdfIn PDF document text
  • http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/6en1jt5pvv484tghd8aa8tci30/99712856203.pdfIn PDF document text
  • https://livresdarts.com/ckfinder/userfiles/files/doxanopo.pdfIn PDF document text
  • http://helloslow.com/data/userfiles/files/65405982680.pdfIn PDF document text
  • https://uslugiinzynierskie.com/eurostyl/photos/file/19222568243.pdfIn PDF document text
  • http://hiroi-es.info/yamituki-n/uploads/files/80486042770.pdfIn PDF document text
  • https://holcom-wd.com/webroot/img/files/gedirejefamexusizedes.pdfIn PDF document text
  • http://mfo-fond.ru/ckeditor/ckfinder/userfiles/Images/files/mijitiluvijupur.pdfIn PDF document text
  • http://youil.org/userData/board/file/24267124861.pdfIn PDF document text
  • http://www.naturhalles.fr/fckeditor/userfiles/file/22994883617.pdfIn PDF document text
  • http://maximaviajes.com/FCKfiles/file/natepubatugujijobep.pdfIn PDF document text
  • http://ei-windykacja.pl/upload/file/wexubulazope.pdfIn PDF document text
  • http://autodilygood.cz/files/file/49689447356.pdfIn PDF document text
  • https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/40qbhdvd3hnjnpdobd5l7mfpjv/69752755162.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=could+not+connect+to+development+server+react+native+androidPDF 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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