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://chcial.ru/uplcv?utm_term=human+anatomy+and+physiology+laboratory+manual+answers PDF link annotation

  • http://amoy-art.com/Upload/file/42507008674.pdfIn PDF document text
  • https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d7c0dbbfd2---94708046259.pdfIn PDF document text
  • http://alituncer.com/userfiles/file/72530570026.pdfIn PDF document text
  • http://scard.vn/app/webroot/uploads/files/jexewixanizijavidepuj.pdfIn PDF document text
  • https://ehbo-oostkapelle.nl/userfiles/file/zutepadimi.pdfIn PDF document text
  • http://mutitar.com/user_img/files/kimojefubopaladuxanebesid.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099bc743aeaa---larejinipipomar.pdfIn PDF document text
  • http://kapsalonindex.nl/images/uploads/21931487031.pdfIn PDF document text
  • http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099f844c7c8b---29044670791.pdfIn PDF document text
  • https://www.latentoac.com/portal/wp-content/plugins/super-forms/uploads/php/files/k352fn3hi44be90tphun952ce6/zigulofumagevuralevamo.pdfIn PDF document text
  • http://dietaltop.com/userfiles/files/17761859543.pdfIn PDF document text
  • http://thedreaminitiative.org/Content/Admin/uploads/files/legogix.pdfIn PDF document text
  • http://www.emporiocaritaspisa.it/wordpress/wp-content/plugins/formcraft/file-upload/server/content/files/16089991886bb8---zumewemuxixoxut.pdfIn PDF document text
  • http://www.uc-kushiro.net/images/library//File/70240797175.pdfIn PDF document text
  • http://chupanhnoithat.vn/upload/files/46897323588.pdfIn PDF document text
  • https://ocvirapuato.com.mx/wp-content/plugins/super-forms/uploads/php/files/140bda3b2e209a11d4e1ed47b504da41/83672678779.pdfIn PDF document text
  • http://mamam.by/upload/File/file/zapiwerulupidakugo.pdfIn PDF document text
  • https://orig-shop-gsm.ro/ckfinder/userfiles/files/sakowituvibadov.pdfIn PDF document text
  • http://mediaworld.pro/ckfinder/userfiles/files/tafaseb.pdfIn PDF document text
  • http://parcroyale.hk/userfiles/vemazirenobukovitomu.pdfIn PDF document text
  • http://struttur-arch.it/userfiles/files/dobetuvaj.pdfIn PDF document text
  • https://uetty.xyz/js/ckfinder/userfiles/files/54088823765.pdfIn PDF document text
  • https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612e65a1de4a3---90930050191.pdfIn PDF document text
  • https://konferencii.ru/js/ckfinder/userfiles/files/76929974584.pdfIn PDF document text
  • https://www.picmephotoboothhire.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160909d122f80b---kosoripomixivovu.pdfIn PDF document text
  • http://tulga.ru/editor/files/wodosilefowinorifafez.pdfIn PDF document text
  • http://driver-jazda.pl/upload/file/zubuvizapiwezavimoru.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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