Malicious PDF — malware analysis report

Heuristics 5

• 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://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/234tjcjvhv7l4sgo185s39o5v8/25362421202.pdf In PDF document text

  • https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e7ece6c9d75---suzurowizopodowopisuz.pdfIn PDF document text
  • https://nomaquito-travel.com/editor-images/goduj.pdfIn PDF document text
  • http://moscreen.in/cmsfiles/file/38321837190.pdfIn PDF document text
  • http://capmar.eu/userfiles/file/66705148082.pdfIn PDF document text
  • http://prefinancovaniehypoteky.sk/res/file/jotijujomufab.pdfIn PDF document text
  • http://bamt.be/wp-content/plugins/formcraft/file-upload/server/content/files/16078daf208da0---dizubomemo.pdfIn PDF document text
  • https://bocion.com/ckfinder/userfiles/files/bazoxaxelusiwujuti.pdfIn PDF document text
  • http://focalthai.com/file_media/file_image/file/gezirosetefimenam.pdfIn PDF document text
  • http://aliceinformaticasrl.com/user/pages/sunofemonodumaxexuzoko.pdfIn PDF document text
  • https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/tbo2s5r83hqf2s9slm2n9skvv3/52883149644.pdfIn PDF document text
  • https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16086cba032f8f---26576833351.pdfIn PDF document text
  • https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ddbe702a3b2---xumatewazoni.pdfIn PDF document text
  • http://matrixuniverzum.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1609bc20e1b4ae---jisen.pdfIn PDF document text
  • https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/004b4c09e157627f39e40bdced02bbc4/3092489170.pdfIn PDF document text
  • https://jgmurphy.com/wp-content/plugins/super-forms/uploads/php/files/e25a303909728a6afdafbdc91a992fb7/varaxipumitesunu.pdfIn PDF document text
  • http://asupuro.com/upload/save_image/files/gigadeposezanepudumek.pdfIn PDF document text
  • https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/d6380f4a42443ab2ef12ae5a94bef0e8/55050418006.pdfIn PDF document text
  • http://hanstime.com/userData/board/file/14065177206.pdfIn PDF document text
  • https://zazilha.com.mx/wp-content/plugins/super-forms/uploads/php/files/87d29a164189242fbf171a7c5f45766c/ruxaroxovobivuk.pdfIn PDF document text
  • https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/dvpe9oannefcg4qur7nm42knv1/88673733234.pdfIn PDF document text
  • https://lightingsystemscol.com/wp-content/plugins/super-forms/uploads/php/files/b2d67226043e7b423ba5b37a64acf79e/konujevodufugoxanalumujew.pdfIn PDF document text
  • http://belgium-ex.com/images/blog//file/govenodosuxitipo.pdfIn PDF document text
  • http://aydinservis.com/ckfinder/userfiles/files/lixetezobabo.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=lattice+homomorphism+pdfPDF 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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