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://krisoc.ru/uplcv?utm_term=free+ps4+avatar+codes PDF link annotation

  • http://vinhthuan.vn/upload/files/dewukivoverifikeke.pdfIn PDF document text
  • https://bookmyexcellence.com/bookmyexcellence/js/ckfinder/userfiles/files/zozebavoz.pdfIn PDF document text
  • https://shop-ecobati.com/medias/upload/files/18399243826.pdfIn PDF document text
  • http://nordicwalkingturak.hu/_user/file/91381986541.pdfIn PDF document text
  • http://insfilings.com/skyzone_classic/upload/files/buligosulizel.pdfIn PDF document text
  • https://kme.pl/global/app/webroot/uploads/file/16318548936115.pdfIn PDF document text
  • https://orig-shop-gsm.ro/ckfinder/userfiles/files/44514979866.pdfIn PDF document text
  • https://www.tvmreza.tv/ckfinder/userfiles/files/32498559280.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613313bea6768---29835238945.pdfIn PDF document text
  • https://aykutemlak.com/upload/ckfinder/files/23639697493.pdfIn PDF document text
  • http://kanomax-nsk.ru/images/tolasidakajebixudukoji.pdfIn PDF document text
  • http://agrion.org/upload/fichier/16204753723.pdfIn PDF document text
  • http://johnlillylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/kigaza.pdfIn PDF document text
  • https://mallncart.com/userfiles/files/11618059229.pdfIn PDF document text
  • https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/951ece6c13fb31f01a3e9d9fcbe891f5/21556348697.pdfIn PDF document text
  • http://cappellastudio.it/userfiles/files/wawozokogew.pdfIn PDF document text
  • https://www.newhorizonscrisiscenter.org/ckfinder/userfiles/files/58176680446.pdfIn PDF document text
  • https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/9idhq59qa458f2ahql6541fg80/12277697675.pdfIn PDF document text
  • http://qualityfirstservices.pro/testingsites/advantage_aviation/assets/media/file/92551897982.pdfIn PDF document text
  • https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/16aa58196dc9b43c0288f959fdd020da/rulafigamepi.pdfIn PDF document text
  • http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613c103d4094d---fatotidevadenebabazuride.pdfIn PDF document text
  • https://noddy.nu/images/file/xopomesesili.pdfIn PDF document text
  • https://3drm.bg/uploads/pictures/files/gevonel.pdfIn PDF document text
  • http://geluidsadviesnederland.nl/ckfinder/userfiles/files/3271159958.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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