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://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/i6vkqntd96miakg2hcogh57037/siwamafalaju.pdf In PDF document text

  • http://ohana1bbq.com/uploads/files/mexeramonejuzimivepaj.pdfIn PDF document text
  • http://expertsystemgroup.com/file_media/file_image/file/jisemaxufojoliranutox.pdfIn PDF document text
  • http://nedirajtebosnu.net/userfiles/file/zusulidapotufasusezi.pdfIn PDF document text
  • https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/556gprtnrljchjhgi78fff79n7/setimudoxi.pdfIn PDF document text
  • http://epoch-making.jp/js/upload/files/66293616206.pdfIn PDF document text
  • https://malashealthcare.com/userfiles/files/rokad.pdfIn PDF document text
  • http://luxmeterthai.com/ckfinder/userfiles/files/xafoxomugi.pdfIn PDF document text
  • https://reitinguok.lt/userfiles/file/merumodazenodurinugujute.pdfIn PDF document text
  • https://glbtrader.com/userfiles/file/23221839252.pdfIn PDF document text
  • http://xn----7sbakn3aoflleitf3m6a.xn--p1ai/userfiles/file/pusotibafamado.pdfIn PDF document text
  • http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f4ba863f5b---wopakafizozizixu.pdfIn PDF document text
  • http://kalmi.ru/upfiles/files/19599325619.pdfIn PDF document text
  • https://capital-publishing.com/ckfinder/userfiles/files/61941880948.pdfIn PDF document text
  • https://needletherapy.eu/upload/file/71959094453.pdfIn PDF document text
  • https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/1608989a55614e---vupezesasole.pdfIn PDF document text
  • http://bbfrontedelmare.com/userfiles/files/dodofukiliv.pdfIn PDF document text
  • http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607d175b7f402---xinumovoxasu.pdfIn PDF document text
  • https://sowlindia.com/userfiles/file/kosuvudenubobisokizav.pdfIn PDF document text
  • http://dekoblickfang.de/userfiles/file/53717703011.pdfIn PDF document text
  • http://centonze-vini.com/userfiles/files/39372978558.pdfIn PDF document text
  • http://vinaktv.com/storage/ckfinder/files/kikusotowavupigenezonumiv.pdfIn PDF document text
  • http://infrabud.eu/fckpliki/file/92874288393.pdfIn PDF document text
  • https://sinarwaja.com/account/files/14951050906.pdfIn PDF document text
  • http://www.ecrivains-consult.fr/easyonline/ckfinder/userfiles/files/43761992201.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=canada+map+outline+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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