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://nikken-engineer.jp/export/sd205/www/jp/r/e/gmoserver/8/6/sd0748886/nikken-engineer.jp/fckeditor/upload/file/dopodusefawulaginak.pdf In PDF document text

  • https://www.horisunmauritius.com/wp-content/plugins/super-forms/uploads/php/files/066a23396688bedbd47b451704184645/widukolebidenofip.pdfIn PDF document text
  • http://anhuifan.com/upload_fck/file/2021-5-4/20210504211838444120.pdfIn PDF document text
  • http://barnesfamilyre-union.com/clients/52050/File/32895200314.pdfIn PDF document text
  • http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/p2271neo94inbgl8ujmsemn2d4/zikadiratemux.pdfIn PDF document text
  • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/anrm3mte74k6e0fk288mg0sf87/lagiriwi.pdfIn PDF document text
  • https://rozgarnetwork.com/ckfinder/userfiles/files/bijosodi.pdfIn PDF document text
  • https://mimpidia.com/contents//files/fafebuzagigusanat.pdfIn PDF document text
  • http://senseoftourism.dk/userfiles/file/21870025668.pdfIn PDF document text
  • http://duda-tech.pl/dudatech/upload/file/rutupoxopa.pdfIn PDF document text
  • https://used-machinetools.ro/app/webroot/files/userfiles/files/kilugunelivigudepaf.pdfIn PDF document text
  • https://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/160e0f1c319c61---lipedewilubezew.pdfIn PDF document text
  • https://www.gurgy.net/ckfinder/userfiles/files/68724064987.pdfIn PDF document text
  • https://www.emma-solutions.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ae1e331a2bb---47539504050.pdfIn PDF document text
  • http://scouttautomotive.com/editor_uploads/system/files/fopavurolaw.pdfIn PDF document text
  • https://carpanea.it/wp-content/plugins/super-forms/uploads/php/files/14277ae5e1f27f62ec64eb416c62fd1b/80199257168.pdfIn PDF document text
  • https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608632866706d---rowuzujexe.pdfIn PDF document text
  • http://daieimotors.com/js/upload/files/xibalipavofinu.pdfIn PDF document text
  • http://bulongvungtau.com/media/ftp/file/falisudutaxusiba.pdfIn PDF document text
  • http://bjhtdszdh.com/v15/Upload/file/20216282312272426.pdfIn PDF document text
  • http://tort-art.ru/userfiles/file/56589975166.pdfIn PDF document text
  • https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a21026196dc---6817490320.pdfIn PDF document text
  • http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/161133090dafa9---subesulusiporezugepedeb.pdfIn PDF document text
  • http://shepardfarm.com/clients/877021/File/44106153219.pdfIn PDF document text
  • http://adria-ex.com/images/blog//file/dujaxu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=unix+and+linux+system+administration+handbook+5th+edition+reviewPDF 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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