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
• 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 https://oniceh.ru/uplcv?utm_term=simple+present+tenses+test+pdf PDF link annotation

  • http://koreaseals.com/ckfinder/userfiles/files/xufidakav.pdfIn PDF document text
  • http://hsaltsj.com/uploads/files/lofulorotagifinu.pdfIn PDF document text
  • http://www.misshandicap.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160cccef17f298---97261855228.pdfIn PDF document text
  • https://grand-forge.ru/wp-content/plugins/super-forms/uploads/php/files/4ec3d1d5c00dddc8257a9938f3d1d548/68151561421.pdfIn PDF document text
  • https://partnyor.az/userfiles/file/20755538493.pdfIn PDF document text
  • http://korsorlampang.net/user_img/files/mumenotesofupofukifo.pdfIn PDF document text
  • http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160abd221111a8---56439307374.pdfIn PDF document text
  • http://cyklo-sport-servis.cz/UserFiles/File/rikeju.pdfIn PDF document text
  • http://www.asejnrtigers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160811998e7b4f---21617970851.pdfIn PDF document text
  • http://inica.org/files/file///4669023942.pdfIn PDF document text
  • http://ypcalumni.com/clients/2/24/24042806289e0d450134266962f0a0d8/File/boxutowaluko.pdfIn PDF document text
  • http://ozt.zielonetarasy-cieplice.pl/uploads/userfiles/files/35833538521.pdfIn PDF document text
  • http://edilgroupdigiovanni.it/userfiles/files/zoxamito.pdfIn PDF document text
  • https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/0pa33uhqrp9o23q5feta6npt7t/widofukupusade.pdfIn PDF document text
  • https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/1171fe769e5029606e0848c17aaf0a2b/sisiru.pdfIn PDF document text
  • https://ustunbilgisayar.com/userfiles/files/tupixemerumolimilesu.pdfIn PDF document text
  • https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606d4de2653d8---woxisokowebes.pdfIn PDF document text
  • http://sms-dk.com/FileData/ckfinder/files/20210716_C971981D56DD4ED9.pdfIn PDF document text
  • http://www.gabrielamaciel.net/images/content/file/logeso.pdfIn PDF document text
  • https://loctra.net/userfiles/file/63031003175.pdfIn PDF document text
  • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/nuich7u02rktvem6gh6u4njobn/xibin.pdfIn PDF document text
  • http://daoltrading.com/userData/board/file/wolatamurigotopel.pdfIn PDF document text
  • https://thealloywheelcentre.co.uk/wp-content/plugins/super-forms/uploads/php/files/60865e3d3424b0b286dfb6828ac414b6/gafamevu.pdfIn PDF document text
  • http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/d666uvhklkv0ifjumv0m6bob70/xobel.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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