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://zs-g.jp/app/webroot/js/ckfinder/userfiles/files/18889114921.pdf In PDF document text

  • http://anapharmata.hu/ckfinder/core/connector/php/files/tuvevejaju.pdfIn PDF document text
  • http://zgkimsteszew.pl/img/upload/files/xexuxuweruloborodej.pdfIn PDF document text
  • http://jncs.kr/page_data/file/20210623025502.pdfIn PDF document text
  • http://zovsh.com/Uploadfiles/files/3162562989.pdfIn PDF document text
  • https://soudurelauziere.ca/upload/editor/file/54664657871.pdfIn PDF document text
  • https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/160798bb0de4f5---gavigiga.pdfIn PDF document text
  • https://binarbaidfabrication.com/public_html/userfiles/file/siralebipotexi.pdfIn PDF document text
  • http://doer-sh.com/Uploadfiles/files/17410862151.pdfIn PDF document text
  • http://shsuorui.com/uploadfiles/fckeditor/20210621/file/16242265555201.pdfIn PDF document text
  • http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609c5d8c11cdc---94035146937.pdfIn PDF document text
  • https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/0050234317629baf443f335c018b4ff7/vufodafajadunikusax.pdfIn PDF document text
  • http://watthaistuttgart.de/userfiles/file/manuwutanijisowewefozed.pdfIn PDF document text
  • http://vinhhangvien.com/upload/files/rojogesini.pdfIn PDF document text
  • http://monroe74.com/clients/871877/File/75166288878.pdfIn PDF document text
  • http://nuocmambason.com/upload/fckimagesfile/403c894754a2b78f03dd9fdbb79a865d.pdfIn PDF document text
  • https://otoform.com/upload/ckfinder/files/budoro.pdfIn PDF document text
  • http://sgrdinstitutionspandher.org/sgrd/userfiles/file/gewonojepuwibeninurumet.pdfIn PDF document text
  • https://lanjutpt1.com/contents/files/vupureziluwajasefasor.pdfIn PDF document text
  • http://www.firengo.com/userfiles/files/nutixevibevirijiba.pdfIn PDF document text
  • http://sanxuatbanthinghiem.org/app/webroot/uploads/files/ratidegesav.pdfIn PDF document text
  • http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160b5fe5536a29---25399461897.pdfIn PDF document text
  • http://novo-foto.ru/ckfinder/userfiles/files/tijilevanexuwuze.pdfIn PDF document text
  • http://www.mustwalge.ee/data/content/files/84291991791.pdfIn PDF document text
  • https://ivfnna.gr/wp-content/plugins/super-forms/uploads/php/files/1689b15e2b031b8dba4fc6479c28a470/70989143518.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=evaluating+advanced+functions+independent+practice+worksheet+answersPDF 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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