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=resetear+celular+android+desde+pc PDF link annotation

  • https://mariellatriolo.it/public/file/lemamukimudawuvuwugilit.pdfIn PDF document text
  • http://foodchemsino.com/d/files/vebenetiti.pdfIn PDF document text
  • http://autowassenindex.nl/images/uploads/10038419626.pdfIn PDF document text
  • http://xn--pr3b03lcdvwu9dpynqkc.com/DATA/file/20210920150925.pdfIn PDF document text
  • https://toptenstudy.com/upload/files/BodyFile__613EFCCEA37DB.pdfIn PDF document text
  • https://raljob.com/userfiles/file/kepowakib.pdfIn PDF document text
  • http://remont-etalon.ru/upload/files/pedawedakexelapa.pdfIn PDF document text
  • http://torby.kbo.pl/ckfinder/userfiles/files/87051424158.pdfIn PDF document text
  • http://arserwood.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/210917233357131325m9g8pn.pdfIn PDF document text
  • http://yjccnc.com/upload/files/fakufadan.pdfIn PDF document text
  • https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/e06e9222585e5b25b33e0ece50d47c5f/dizorar.pdfIn PDF document text
  • http://9y.bfage.com/upload/files/20210916160100.pdfIn PDF document text
  • http://dongtienlamnghiep.com/upload/file/duzodunexifogim.pdfIn PDF document text
  • http://thedewakohchang.com/image/upload/File/9420279414.pdfIn PDF document text
  • https://shibbirs.com/media/files/giwolapisajupibiwizuvevi.pdfIn PDF document text
  • https://khonggiansachhanoi.vn/uploads/files/18289820658.pdfIn PDF document text
  • http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/16136d9d10bc86---gakeguxadinegipoladip.pdfIn PDF document text
  • https://organicearthfiji.com/documents/file/91492681151.pdfIn PDF document text
  • http://eventologia.com/userfiles/files/88767774493.pdfIn PDF document text
  • https://economiadecomunion.com/ckfinder/userfiles/files/71770362142.pdfIn PDF document text
  • http://mptech.vn/ckfinder/userfiles/files/36383987626.pdfIn PDF document text
  • http://villaturri.com/wp-content/plugins/formcraft/file-upload/server/content/files/161401bef46219---98609399471.pdfIn PDF document text
  • http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ebaee0aba4---tewowijuwezoxujoze.pdfIn PDF document text
  • http://downtowncincyhotels.com/core_degree/admin/images/cms_imagesfiles/42559046087.pdfIn PDF document text
  • http://h-n-s.net/userfiles/file/7506064322.pdfIn PDF document text
  • http://charmingcurls.se/upload/file/jenifodog.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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