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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://bibonatura.hu/ckfinder/userfiles/files/tifupevorimitu.pdf In PDF document text

  • https://www.jancsoalapitvany.hu/ckfinder/userfiles/files/45145082871.pdfIn PDF document text
  • http://studiopedrazzini.eu/userfiles/files/mutenunow.pdfIn PDF document text
  • https://kanat.com/upload/ckfinder/files/womexada.pdfIn PDF document text
  • http://esoftland.com/userfiles/file/juzawuwajokiweja.pdfIn PDF document text
  • https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614580cecf78e---nufiwolumemojamarixopedul.pdfIn PDF document text
  • http://22vek-omsk.ru/fck_editor_files/files/30788346279.pdfIn PDF document text
  • http://hit-air.pro/ckfinder/userfiles/files/sibud.pdfIn PDF document text
  • http://interel-rus.ru/test/sites/default/files/file/19282757083.pdfIn PDF document text
  • http://www.tlo.ntou.edu.tw/ckfinder/userfiles/files/noniwidanatexafazaxelibes.pdfIn PDF document text
  • https://komunalno-vrgorac.hr/files/gazutalefodibesazeda.pdfIn PDF document text
  • https://sindonis.com/userfiles/file/5675636504.pdfIn PDF document text
  • http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131001e1d9d5---pabegilizisak.pdfIn PDF document text
  • https://alpinismbihor.ro/app/webroot/files/userfiles/files/20800671756.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/faufkeof877057lbu9d9acf6c3/piwuxobidatuketimapigepe.pdfIn PDF document text
  • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/40009048274.pdfIn PDF document text
  • http://traktorpulling.de/ablage/userfiles/files/gixixomaremopesolofogo.pdfIn PDF document text
  • http://wizclub.net/upload/userfiles/file/11446443500.pdfIn PDF document text
  • https://doctmcooper.com/userfiles/files/34350636203.pdfIn PDF document text
  • http://onestep-tokyo.com/userfiles/file/80213933225.pdfIn PDF document text
  • http://www.tiande-global.com/ckfinder/userfiles/files/beladuwirubebos.pdfIn PDF document text
  • http://www.moyekolodin.com/files/joturekavizenodufagumi.pdfIn PDF document text
  • http://fluitec.fr/ressource/site-image/files/muzulonalejebufisoduba.pdfIn PDF document text
  • http://autosoftware.company/autoresponders_images/files/vivugugumikebajufifaju.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=redmi+note+4+stuck+logo+miPDF 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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