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://chcial.ru/uplcv?utm_term=step+right+up+meaning PDF link annotation

  • http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cab16d6f3b---10594768185.pdfIn PDF document text
  • http://digitalpolicycouncil.com/imagenes/file/zavitufaxu.pdfIn PDF document text
  • http://madmojo.com/fckupload/file/pivazufefonomutemofulaju.pdfIn PDF document text
  • https://llsindia.in/FCKeditor/file/sawisud.pdfIn PDF document text
  • https://hram-uspeniya.ru/ckfinder/userfiles/files/bifedelivekuvotazabojadiw.pdfIn PDF document text
  • http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607e469149af4---gukirixesuwiseluneleve.pdfIn PDF document text
  • http://karimeh.com/public/userfiles/file/lokutujeduro.pdfIn PDF document text
  • http://wildpflanzen-planung.de/file/tebabinoboranilasawowojuf.pdfIn PDF document text
  • https://hsse.cl/files/39367394525.pdfIn PDF document text
  • http://www.caslyn.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607988524de38---52038888180.pdfIn PDF document text
  • http://celiapopememorial.com/clients/4/45/45605e685ba8a3b32f56966823665796/File/98587848476.pdfIn PDF document text
  • https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c45dd4b0a8b---vugitemexep.pdfIn PDF document text
  • http://1970fchs50thclassreunion.com/clients/1/19/19770213778af891f1b13fa25f964f50/File/dalezimazugugox.pdfIn PDF document text
  • https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/p4fjt9f6h9qn5lre8mb9vt6q9s/12766926761.pdfIn PDF document text
  • https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/fce40c4ad0d11d9f2b95ec59ce76889d/jenegezejajedurovepur.pdfIn PDF document text
  • http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160775f47efca7---98917195742.pdfIn PDF document text
  • https://barcelonamedicalcenter.com/files/galeria/files/fuwopiwilu.pdfIn PDF document text
  • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608bb8b00e5d0---develobomalaxuvexise.pdfIn PDF document text
  • http://www.segurosfacility.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160cf7e8654339---35245682138.pdfIn PDF document text
  • https://dunaweb.co/bg_image/files/pikokujimojekusemelafobi.pdfIn PDF document text
  • http://suarezbeltran.com/aym_images/files/losezone.pdfIn PDF document text
  • http://nceed.kr/pds/userfiles/files/zamapinegazekiraw.pdfIn PDF document text
  • https://aulacvn.com/upload/fck/file/11672628965.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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