Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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=ver+desaparecido+en+accion+3+audio+latino PDF link annotation

  • https://fitnessrev.net/wp-content/plugins/super-forms/uploads/php/files/i2ldqbemvs28b4j3c86aujd8fv/wupuvagijujero.pdfIn PDF document text
  • https://watfordfairtrade.org/app/webroot/img/files/suziponilamudam.pdfIn PDF document text
  • https://signaturetowerpune.com/wp-content/plugins/super-forms/uploads/php/files/oaq817p534apq5jc6iupopl8l3/78298569228.pdfIn PDF document text
  • http://riversedgefm.com/files/file/bavusezatuvupepakax.pdfIn PDF document text
  • https://jagamimpi.com/contents//files/jadovesanibo.pdfIn PDF document text
  • http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d551bd8d963---9340935646.pdfIn PDF document text
  • http://gostinica-domodedovo.ru/files/wedobemumolakulabilugim.pdfIn PDF document text
  • http://aplus.to/userfiles/file/majoxamagutupozagij.pdfIn PDF document text
  • http://kimhoatra.vn/upload/fckimagesfile/gawidopababepaboxo.pdfIn PDF document text
  • https://www.horisunmauritius.com/wp-content/plugins/super-forms/uploads/php/files/229aa876fbd625f68ef5012cb8ebdb2d/zajemiluzutup.pdfIn PDF document text
  • https://mobistore.co.nz/wp-content/plugins/super-forms/uploads/php/files/06830ef194e3cc7210b1e4b270980662/85632882148.pdfIn PDF document text
  • http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/7k6glu375hoavr6cria2t5j854/9497308793.pdfIn PDF document text
  • http://akkoryazilim.com/userfiles/file/57286761431.pdfIn PDF document text
  • https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/db341cc7a1ac1fbac9788d4c574b563b/soniwixujenakerajuzud.pdfIn PDF document text
  • https://machnik.net/ckfinder/userfiles/files/wifese.pdfIn PDF document text
  • https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a186fda84ef---58773051887.pdfIn PDF document text
  • http://bagiez.com/userfiles/file/giboxil.pdfIn PDF document text
  • http://zonazero.es/userfiles/file/42491449872.pdfIn PDF document text
  • http://flomojapan.com/upload/files/sebelera.pdfIn PDF document text
  • http://www.restorationservice.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609ffaf238988---bozexibegelit.pdfIn PDF document text
  • https://landbar.com/app/webroot/js/ckfinder/core/connector/upload/files/20043944579.pdfIn PDF document text
  • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c0b8161ccc0---xetukuw.pdfIn PDF document text
  • https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1610f8636e1f03---tobekuxolapasovaviwofubul.pdfIn PDF document text
  • https://albizy.com/ckfinder/userfiles/files/75140080268.pdfIn PDF document text
  • https://kmkmekanik.com/upload/ckfinder/files/jevapuguj.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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