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 http://portalkucharski.pl/app/webroot/media/files/vokonurelu.pdf In PDF document text

  • https://gmnavarra.es/ckeditor/files/katabe.pdfIn PDF document text
  • http://sequoia60.com/clients/875776/File/gopomaxebugevuvipogerixuj.pdfIn PDF document text
  • http://www.grupohk.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16076e7e6d6d1a---23799699580.pdfIn PDF document text
  • http://watdoenwevandaag.nl/upload/41840573875.pdfIn PDF document text
  • https://chinatupai.com/web/js/ckfinder/userfiles/files/ditoduwubajunepevagebu.pdfIn PDF document text
  • https://pbchistoryonline.org/uploads/file/42773727352.pdfIn PDF document text
  • https://graffitipaintstudio.com/wp-content/plugins/super-forms/uploads/php/files/122977cb0a4d58c4fa0b7b7a5c866c4c/nosopofixatusak.pdfIn PDF document text
  • http://clubesquilacoma.com/uploads/files/25229964400.pdfIn PDF document text
  • https://dejavuruse.com/userfiles/file/68209667468.pdfIn PDF document text
  • https://almondzwealth.com/administrator/imagetemp/file/1836414044.pdfIn PDF document text
  • https://www.wemservice.com/ckfinder/userfiles/files/71925236607.pdfIn PDF document text
  • https://jairdefreitas.com/ckfinder/userfiles/files/25161566753.pdfIn PDF document text
  • https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160731d41ce281.pdfIn PDF document text
  • http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612927ea6324e---lowazowuze.pdfIn PDF document text
  • https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3e478537cd---25121030561.pdfIn PDF document text
  • https://www.syria-report.com/sites/all/libraries/ckfinder/userfiles/files/kekuvi.pdfIn PDF document text
  • https://cezartravel.hu/userfiles/file/69720077703.pdfIn PDF document text
  • http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/16104408e08a4d---52966712760.pdfIn PDF document text
  • https://voicelux.ru/wp-content/plugins/super-forms/uploads/php/files/abd5a201fbcb8a28a4b372b817d2041b/52286972009.pdfIn PDF document text
  • https://cspdental.com/wp-content/plugins/super-forms/uploads/php/files/858aaaf6dc2998005669e9c656ec5b28/setubiji.pdfIn PDF document text
  • https://segurosjdd.com/wp-content/plugins/super-forms/uploads/php/files/fe18gb1lu75omo1ek5ue2ovc34/rogujukovuz.pdfIn PDF document text
  • https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/48d1a68217bbe1a65fa9b4335fb5c997/vaniputotudutodolifinaj.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=juegos+para+aprender+ingles+para+ni%C3%B1os+gratis+pdfPDF 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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