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 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://synerhu.ru/uplcv?utm_term=b+good+words PDF link annotation

  • https://cyc-catering.pe/disac/userfiles/file/95160162294.pdfIn PDF document text
  • http://romovi.net/sgi_userfiles/userfiles/files/wajovabonasefif.pdfIn PDF document text
  • https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/0596ea8bfbf83799fa6c1b953df9e980/34475689618.pdfIn PDF document text
  • https://rheinfurth.de/userfiles/file/muwubujilurifes.pdfIn PDF document text
  • http://chinajessie.com/seadata/data/uploads/img/file/163100808065.pdfIn PDF document text
  • https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613efc8d0587c---27943920643.pdfIn PDF document text
  • http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/5a97dc8fc9a9f9e44a40c675d8784cae/nozilelujawaraveza.pdfIn PDF document text
  • http://qdxqw.com/uploadfile/file/44196456278.pdfIn PDF document text
  • http://ofitecnic.es/files.ofitecnic/fck_up/file/5954472773.pdfIn PDF document text
  • https://eniedu.com/data/file/20210915152318.pdfIn PDF document text
  • http://studiofapas.it/userfiles/files/nomojasigefizidasiwi.pdfIn PDF document text
  • http://abwnickersonplaza.com/uploads/files/febususepep.pdfIn PDF document text
  • http://ty6600.com/userfiles/file/64362198234.pdfIn PDF document text
  • https://pingthye.com/userfiles/files/78661315526.pdfIn PDF document text
  • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/4cc4d55b495a6d5c049bf849293897f7/8152841936.pdfIn PDF document text
  • https://palcev.ru/userfiles/file/80134531009.pdfIn PDF document text
  • https://fedico.ca/upload/editor/file/86729555837.pdfIn PDF document text
  • http://radtel-sport.pl/userfiles/file/kovexowinadinudidogir.pdfIn PDF document text
  • http://www.ville-civaux.fr/admin/js/ckfinder/userfiles/files/77310682586.pdfIn PDF document text
  • https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/e2ea0c95cdefd73d109d1af198386ca6/xabasumozigebudevorif.pdfIn PDF document text
  • http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613dd50ee6a96---4887282023.pdfIn PDF document text
  • http://intranet.uts.edu.co/portal/app/ckfinder/userfiles/files/lususemin.pdfIn PDF document text
  • http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/161370433a1165---48487929879.pdfIn PDF document text
  • http://elfast.ru/userfiles/file/zelumazumemonozisitomupe.pdfIn PDF document text
  • http://www.gc-antey.ru/ckfinder/userfiles/files/kixifafimafiwapenabuxemu.pdfIn PDF document text
  • http://bige.vn/uploads/userfiles/file/44461113782.pdfIn PDF document text
  • http://crm333.com/documentos/file/90153366487.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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