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://irlanc.ru/uplcv?utm_term=vrchat+apk+mobile PDF link annotation

  • https://marwaservicecenter.com/nbloom/fckuploads/file/41489486492.pdfIn PDF document text
  • http://cuborh.com/natelinhanew/js/ckfinder/userfiles/files/71825301503.pdfIn PDF document text
  • http://zabbeleecooking.com/ckfinder/userfiles/files/lugasa.pdfIn PDF document text
  • http://smeeing.com/userfiles/files/30848965998.pdfIn PDF document text
  • https://marcuspietrek.de/MARCUS/files/file/bigoreve.pdfIn PDF document text
  • http://peak-experience-japan.com/images/blog/file/57096951794.pdfIn PDF document text
  • http://dekobonner.de/userfiles/file/befefavadelake.pdfIn PDF document text
  • https://eastmanllc.net/ckfinder/userfiles/files/36890990557.pdfIn PDF document text
  • https://idealist.ro/userfiles/file/21269925857.pdfIn PDF document text
  • http://www.alborada.es/ckfinder/userfiles/files/mobamoso.pdfIn PDF document text
  • https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/ktvs24pugv1tcn25jodl3hb6sn/rewati.pdfIn PDF document text
  • http://posicert.com/upload_fck/file/2021-9-24/20210924025248479631.pdfIn PDF document text
  • http://evergreendentistryva.com/app/webroot/js/ckfinder/userfiles/files/4299194976.pdfIn PDF document text
  • https://quangcaowebsite.vn/uploads/files/kiselu.pdfIn PDF document text
  • https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/16134353a18574---sazexomedamajipomigojepuk.pdfIn PDF document text
  • http://generaldistco.com/images/file/3217633490.pdfIn PDF document text
  • http://max-metal.pl/gfx/file/76323713641.pdfIn PDF document text
  • http://sinsg.com/files/fckeditor/file/vetukirevurofu.pdfIn PDF document text
  • http://koopmankennedyfeller.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/39470315230.pdfIn PDF document text
  • http://aviatechinform.ru/sadm_files/78186556376.pdfIn PDF document text
  • http://gdgom.com/upload/file/210924043418490506x06m92y1f5r8.pdfIn PDF document text
  • http://zoldjogsi.hu/uploads/files/xazitudodu.pdfIn PDF document text
  • http://klick-tipp.info/ckfinder/userfiles/publics/files/5307727752.pdfIn PDF document text
  • https://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613e394a237a7---kabirewebufubuvivel.pdfIn PDF document text
  • http://rosg.net/sa_upload/userfiles/file/20210925093227.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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