Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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://garglob.ru/uplcv?utm_term=ricevere+sms+su+tablet+android PDF link annotation

  • http://www.ciesol.com/ckfinder/userfiles/files/bokijogigafabixotokorexu.pdfIn PDF document text
  • http://chulatutoracademy.com/chulatutor/ckfinder/userfiles/files/jaropesimuwuwugu.pdfIn PDF document text
  • http://bestbuyfromindia.com/userfiles/file/xivewobaretalaw.pdfIn PDF document text
  • https://sieseam.org/userfiles/files/31099170578.pdfIn PDF document text
  • https://transcendenceit.com/wp-content/plugins/super-forms/uploads/php/files/4d3f9da395ee96a72ffdbb9b56516922/1181796424.pdfIn PDF document text
  • https://moveo-sport.pl/userfiles/file/fedidix.pdfIn PDF document text
  • http://vdi.vn/userfiles/file/11774565938.pdfIn PDF document text
  • http://bagiez.de/userfiles/file/52281625261.pdfIn PDF document text
  • https://franchise-vietnam.com/app/webroot/img/files/6641112072.pdfIn PDF document text
  • https://xn--bren-mgenwil-gcbf.ch/sites/default/files/fck-uploads/file/xanaxulutedenebidodi.pdfIn PDF document text
  • http://z-sinpro.com/upload/files/masujalavupobisuvonab.pdfIn PDF document text
  • https://interno-kazan.ru/upload/files/1632529815.pdfIn PDF document text
  • http://xn--80aesyq.xn--p1acf/files/file/josodivozib.pdfIn PDF document text
  • https://confidence-ist.mktechsol.com/ckfinder/userfiles/files/piwemizedole.pdfIn PDF document text
  • http://progettarecasa.com/userfiles/files/11737716470.pdfIn PDF document text
  • http://smelawservice.com/file_media/file_image/file/vidijakujolabiniwonedatuj.pdfIn PDF document text
  • http://stowarzyszeniemalyksiaze.eu/img/upload/files/47741301950.pdfIn PDF document text
  • https://www.bussmann-tiefbau.de/ckfinder/userfiles/files/81615014171.pdfIn PDF document text
  • http://pitin-akutsu.com/js/upload/files/fenogapav.pdfIn PDF document text
  • http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16141141604ab3---sodudeno.pdfIn PDF document text
  • https://www.hs-hofgastein.salzburg.at/ckfinder/userfiles/files/tubovufaz.pdfIn PDF document text
  • https://hanoihome.net/img_duhoc/files/37635881779.pdfIn PDF document text
  • https://aukshanya.promosing.com/alpha/ckfinder/userfiles/files/41963689866.pdfIn PDF document text
  • https://fundreamz.com/ckfinder/userfiles/files/tebajul.pdfIn PDF document text
  • http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/161439c33e5d71---49431488888.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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