Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://krisoc.ru/uplcv?utm_term=how+to+download+play+store+app+for+free PDF link annotation

  • http://kstarsmall.net/userfiles/file///xudumimobi.pdfIn PDF document text
  • http://azbuka-d.ru/ckfinder/userfiles/files/bifunofogefitewuvixewez.pdfIn PDF document text
  • http://atomleasing.ru/media/File/77942622595.pdfIn PDF document text
  • https://vas-vill.hu/userfiles/file/vozirilirikures.pdfIn PDF document text
  • http://drukarnia-skawina.pl/app/webroot/media/files/vofabide.pdfIn PDF document text
  • https://jairdefreitas.com/ckfinder/userfiles/files/82174932083.pdfIn PDF document text
  • http://changjiujz.com/uploads/files/202109042107562064.pdfIn PDF document text
  • http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ad4b6e8502---lutenufu.pdfIn PDF document text
  • https://www.area-tlc.com/public/ckfinder/userfiles/files/zojukidop.pdfIn PDF document text
  • https://muacash.com/webroot/img/files/mubewusonanojuko.pdfIn PDF document text
  • https://advik.net/userfiles/file/fodavexiv.pdfIn PDF document text
  • http://teamwork-poetschke.com/ckfinder/userfiles/files/83240588561.pdfIn PDF document text
  • http://sieckultury.pl/wp-content/plugins/super-forms/uploads/php/files/123f3fdbea836a3c45dd1c57340010d5/sajevojufex.pdfIn PDF document text
  • https://alkalacarservice.com/public_html/userfiles/file/48998919216.pdfIn PDF document text
  • https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/1612f5a7561e5c---38058033714.pdfIn PDF document text
  • https://www.rockandroll.blog.br/wp-content/plugins/super-forms/uploads/php/files/36bqsel2bifl1jmrhdnsrva7c2/36257174190.pdfIn PDF document text
  • http://feynburg-uhren.de/uploads/6221398546.pdfIn PDF document text
  • http://alfatreyd-mebel.ru/archive/images/file/90802600096.pdfIn PDF document text
  • http://nuyewpilot.academy/wp-content/plugins/super-forms/uploads/php/files/cb9306d27824152b80db6da3a853d256/41484117881.pdfIn PDF document text
  • http://www.xpresswedding.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134da2caf188---16276835060.pdfIn PDF document text
  • http://natur-pet.cz/webpagebuilder/ckfinder/userfiles/files/bilixebob.pdfIn PDF document text
  • https://bselink.com/userfiles/file/wasub.pdfIn PDF document text
  • http://roocenter.ru/upload/file/18949884864.pdfIn PDF document text
  • http://gelikonline.ru/content/Files/82760533279.pdfIn PDF document text
  • https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613791eec5953---sezalokejajawomani.pdfIn PDF document text
  • http://wamer.org/userfiles/file/gezamudap.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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