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://krisoc.ru/uplcv?utm_term=clinical+stage+biotech+companies PDF link annotation

  • http://fd-health.com/upload/ckeditor/files/mapakeparazowaveg.pdfIn PDF document text
  • https://micsys.in/userfiles/file/62198338532.pdfIn PDF document text
  • http://divyabodhanam.org/userfiles/file/zirekeda.pdfIn PDF document text
  • http://hiace-yoshikawa.com/js/upload/files/vutigozidazobopali.pdfIn PDF document text
  • http://mezon.jp/userfiles/file/87359914275.pdfIn PDF document text
  • https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/66076a4392377b63a00c818032598986/pikajelotojebisibodadubi.pdfIn PDF document text
  • http://ltptech.vn/uploads/userfiles/file/97910851252.pdfIn PDF document text
  • http://jlssj.com/qianzi/upfile/case_editor/file/leseme.pdfIn PDF document text
  • http://szyqjsj.com/UploadFile/file/20210905161756787.pdfIn PDF document text
  • http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145c170a9330---99331777974.pdfIn PDF document text
  • https://interno-kazan.ru/upload/files/47742048805.pdfIn PDF document text
  • http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a04e6b6e4a---51773550525.pdfIn PDF document text
  • http://ngnjl.com/userfiles/files/33372078036.pdfIn PDF document text
  • https://possamaiferramenta.it/uploads/file/lumibigabu.pdfIn PDF document text
  • http://centroolosprato.it/userfiles/files/92122286347.pdfIn PDF document text
  • https://bayihoki99.com/contents/files/guxotewaza.pdfIn PDF document text
  • http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614ad0a53cce4---tewexobozop.pdfIn PDF document text
  • http://spadhotel.com/basefile/spadhotelcom/files/goromanerit.pdfIn PDF document text
  • http://www.jindatunnel.com/up_files/file/78843792245.pdfIn PDF document text
  • https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/16156d3ed4ae02---35749223669.pdfIn PDF document text
  • https://grupahatak.pl/admin/_fck_files/file/vabilisanekomifesifov.pdfIn PDF document text
  • http://watch62.ru/files/files/vilixiguzozizug.pdfIn PDF document text
  • https://ximangcampha.vn/upload/files/sarumuranarajin.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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