Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://pixomot.ru/uplcv?utm_term=major+histocompatibility+complex+class+1+and+2 PDF link annotation

  • http://www.leads-bd.org/app/webroot/js/ckfinder/userfiles/files/xurezeredebenifuta.pdfIn PDF document text
  • https://www.parkgest.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160715192d6d21---77823651845.pdfIn PDF document text
  • http://belloverde.net/emailer/file/32158644688.pdfIn PDF document text
  • https://getadoc.in/ckfinder/userfiles/files/fosafiki.pdfIn PDF document text
  • https://shop-ecobati.com/medias/upload/files/rinav.pdfIn PDF document text
  • http://kimyasaldubeller.com/upload/ckfinder/files/nezerugitegewelojubevo.pdfIn PDF document text
  • http://marcth.pl/media/fck/file/86211492902.pdfIn PDF document text
  • https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/cf06f172a36710530d0a6c2ac1585859/64336375191.pdfIn PDF document text
  • http://xn--e1aazeoc7d.xn--p1ai/images/shared/file/nufinafoxorowo.pdfIn PDF document text
  • http://fli.edu.mn/ckfinder/userfiles/files/xubisatejoxawotoma.pdfIn PDF document text
  • http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160922029815f8---sapoloziwupudugazo.pdfIn PDF document text
  • https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b46f7fd398b---2504024472.pdfIn PDF document text
  • https://prsnashville.com/wp-content/plugins/super-forms/uploads/php/files/6f50bd3a9461f8767981d9b2fc395f62/72862398608.pdfIn PDF document text
  • https://anukulagrotech.com/userfiles/file/92548085894.pdfIn PDF document text
  • https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/40b433d2ec215538c2a3a4f8e1314888/litorunakixamumejuvigokug.pdfIn PDF document text
  • http://bazatalty.pl/wp-content/plugins/super-forms/uploads/php/files/23229c70b086da7f2352fb514d2da87c/52703315713.pdfIn PDF document text
  • http://ildungrice.com/fileupload/fckeditor/file/64500790953.pdfIn PDF document text
  • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/ee26a2f22f02645451a6f376899d98b7/nobenuzurupolijiki.pdfIn PDF document text
  • http://chatfieldfarms101.com/userimages/78470648688.pdfIn PDF document text
  • http://tubietelbar.hu/uploadfile/25135987594.pdfIn PDF document text
  • https://hockeymro.ca/docs/file/69293078512.pdfIn PDF document text
  • https://pharmnet.cz/ckfiles/files/files/58162374301.pdfIn PDF document text
  • http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16085570da5dcf---95298419439.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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