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://infrive.ru/uplcv?utm_term=worksheet+for+schedule+1+2018+canada PDF link annotation

  • https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/tnp01db7nrksgi17ihd5j2nt53/29597207053.pdfIn PDF document text
  • http://servis-hradec.cz/files/file/rutofekopaw.pdfIn PDF document text
  • http://arserwood.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/210601013538802414u2g45d.pdfIn PDF document text
  • http://dralituncer.net/userfiles/file/nalenatadoli.pdfIn PDF document text
  • https://minutesnap.com/wp-content/plugins/super-forms/uploads/php/files/33cf82ed5844341d867a6eafca0fce23/ximamojamilaweberokozufex.pdfIn PDF document text
  • https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d8f7ad5ebd---jojiwobasisenederamuj.pdfIn PDF document text
  • https://chambredhotes-savoie.com/ckfinder/userfiles/files/lejoka.pdfIn PDF document text
  • http://mtlebanon62.com/clients/5/5e/5ee551a8be14a26d7d76bc5e90dd1372/File/4635921066.pdfIn PDF document text
  • https://mariellatriolo.it/public/file/8099312721.pdfIn PDF document text
  • http://extracam.es/app/webroot/arxius/file/wafedovafapojanagotakoze.pdfIn PDF document text
  • http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8c7abc8039---dugizuxenebozuviguxarug.pdfIn PDF document text
  • https://coopinproject.eu/ckfinder/userfiles/files/56005630569.pdfIn PDF document text
  • https://dom4m.de/userfiles/files/regop.pdfIn PDF document text
  • https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160edc629af1f9---55291768786.pdfIn PDF document text
  • http://adirondackseafood.com/ckfinder/userfiles/files/28555746137.pdfIn PDF document text
  • http://daechienglishpark.com/ckfinder/userfiles/files/sukatawunotomotugewulowip.pdfIn PDF document text
  • https://mepho.hu/ckfinder/userfiles/files/10518782165.pdfIn PDF document text
  • http://stevis.cz/files/file/588051464.pdfIn PDF document text
  • http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/1608333a28b155---83435985997.pdfIn PDF document text
  • https://www.hinogas.com/wp-content/plugins/super-forms/uploads/php/files/cf54t89a154cgsaeiq7jkr9tht/dinosoredifidimo.pdfIn PDF document text
  • http://vienhung.com/webroot/img/files/1136277312.pdfIn PDF document text
  • https://baoholaodong24.com/userfiles/file/datuvebixifojazozasigosi.pdfIn PDF document text
  • https://pankajplast.com/ckfinder/userfiles/files/xatizigidaditutesogepit.pdfIn PDF document text
  • http://c2mag.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cd0eaa3de7---penimulasawokop.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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