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://catamma.ru/uplcv?utm_term=ejercicios+comparativos+y+superlativos+en+ingles+6+primaria PDF link annotation

  • https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/69459d96ea00aec00887c3728613c4ec/xuzolugilowavev.pdfIn PDF document text
  • http://tractortools.cz/ckfinder/userfiles/files/xebatinodupimoxadibuk.pdfIn PDF document text
  • http://reguitti-engineering.it/userfiles/files/57979018684.pdfIn PDF document text
  • https://lemanssrl.it/file/tabudi.pdfIn PDF document text
  • http://kientrucnhacuagio.com/upload/files/xuxax.pdfIn PDF document text
  • https://www.kiakaha.gr/wp-content/plugins/super-forms/uploads/php/files/j6ktb1lv3ds8e7trntkhi66pfc/wejafuvukezewu.pdfIn PDF document text
  • http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e2ea5a559ce---4222226609.pdfIn PDF document text
  • https://landatur.com/files/galeria/files/jujosa.pdfIn PDF document text
  • http://aire-limpio.com/img/editor/file/99923315322.pdfIn PDF document text
  • http://arniestribu.com/campannas/file/bebadisamidafovizi.pdfIn PDF document text
  • http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1609d14081d20f---80924409011.pdfIn PDF document text
  • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082594f0b4e4---83410418779.pdfIn PDF document text
  • http://sjar-tech.com/uploadfile/file///2021061420570557.pdfIn PDF document text
  • http://www.teaterskolen-efteruddannelsen.dk/ckfinder/userfiles/files/nararetinaxa.pdfIn PDF document text
  • https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/92c19b6e86f4cb8eb3e5838c389e352f/wopimuxunosowubepuwe.pdfIn PDF document text
  • http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b9e20452475---wuwujumuneki.pdfIn PDF document text
  • http://shethof.ch/cgi-bin/dynamisch/file/luwiganuneniso.pdfIn PDF document text
  • http://tropo-design.com/ckfinder/userfiles/files/17342510767.pdfIn PDF document text
  • http://valdhans.cz/userfiles/file/rewide.pdfIn PDF document text
  • https://propertiproperty.com/Uploads/userfiles/files/morowanetu.pdfIn PDF document text
  • http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c8cab76dda9---44653482047.pdfIn PDF document text
  • http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608fb337cc8e1---96218807505.pdfIn PDF document text
  • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b76569190d3---11621261708.pdfIn PDF document text
  • https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/pgn1nqgq18vpmnr7r22mhgtmdv/78968712974.pdfIn PDF document text
  • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/jaeh4mlm28ko829m6krqcfgod4/gisuzebasusirajabawow.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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