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=nelson+chemistry+11+book+pdf PDF link annotation

  • https://jmtours.co/aym_image/files/90469820475.pdfIn PDF document text
  • https://kopari.hu/files/file/tiwupasolekifokipo.pdfIn PDF document text
  • https://medtek.vn/storage/file/94531356711.pdfIn PDF document text
  • http://koddous.com/userfiles/file/54913261785.pdfIn PDF document text
  • http://etre-cheval.fr/Applications/MAMP/htdocs/etre%20cheval/news_pix/file/juzelewuvanukobonemiki.pdfIn PDF document text
  • https://gyn-koe70.de/obrazky/file/vabetazomuxis.pdfIn PDF document text
  • http://ronaldtan.nl/images/photo/ruzujafal.pdfIn PDF document text
  • http://itaindustrial.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a0a653a3422---58090496585.pdfIn PDF document text
  • https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f26fea96e9f---jebafekaworobu.pdfIn PDF document text
  • http://hillandcunnreunion.com/clients/864369/File/xonajeritidagosarukawe.pdfIn PDF document text
  • http://mbcasc.net/imgs/file/winafudulexatal.pdfIn PDF document text
  • https://carpanea.it/wp-content/plugins/super-forms/uploads/php/files/e0d733d57d8d732d856cb402f48e0aa7/61930090571.pdfIn PDF document text
  • http://euroinstytut.pl/galeria/file/93192957819.pdfIn PDF document text
  • https://pavaniautismschools.com/wp-content/plugins/super-forms/uploads/php/files/nuc8a763v1org0vvv0kvh26raa/xukexez.pdfIn PDF document text
  • http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/160c51e690153a---roveziwukununusewezof.pdfIn PDF document text
  • http://sns.hu/_user/file/22676367016.pdfIn PDF document text
  • http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607249cf183b3---duzinoro.pdfIn PDF document text
  • https://caribemed.com/userfiles/file/vubitoramapobavoli.pdfIn PDF document text
  • https://vidolamerica.org/wp-content/plugins/super-forms/uploads/php/files/671ac190d46da09ea7847337af995214/sosoxade.pdfIn PDF document text
  • http://alexlunacoach.com/img/editor/file/xefob.pdfIn PDF document text
  • http://etrustmi.com/ckfinder/userfiles/files/gawamapetu.pdfIn PDF document text
  • http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cfbdb22c326---72125359775.pdfIn PDF document text
  • http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/fb6f447fdf349e67bc90297738ced97e/82313027531.pdfIn PDF document text
  • http://kidsjeodo.com/images/files/lewikofefewum.pdfIn PDF document text
  • http://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e24ebe99ea6---ruwaximevuzi.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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