Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://lex-ter.ru/admin/ckfinder/userfiles/files/89773611398.pdf In PDF document text

  • https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606f52019721d---zitaredosodabigitubo.pdfIn PDF document text
  • http://kahsport.cz/userfiles/file/12961351812.pdfIn PDF document text
  • https://flyingfish-stay.com/userfiles/file/69246643303.pdfIn PDF document text
  • http://stadion-zarya.ru/ckfinder/userfiles/files/76918989212.pdfIn PDF document text
  • https://aplusadvance.com/naver_editor/data/file/lifedixemofakemow.pdfIn PDF document text
  • http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/160df8b0ec7507---42785805151.pdfIn PDF document text
  • https://urbanplace.me/wp-content/plugins/super-forms/uploads/php/files/0d5ffb935945cc259f3049487373cefb/10527344215.pdfIn PDF document text
  • https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/16081f252a26d4---64838749990.pdfIn PDF document text
  • https://vernadoc.com/wp-content/plugins/super-forms/uploads/php/files/67d91e92c5580273b89413bbf91d54b0/32665078848.pdfIn PDF document text
  • http://iccj.jp/images/uploads/fckeditor/file/33140716590.pdfIn PDF document text
  • http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a27ac326b7a---39318425351.pdfIn PDF document text
  • https://eminencesolutions.in/resources/userfiles/file/regolatuteziwe.pdfIn PDF document text
  • http://barnesfamilyre-union.com/clients/52050/File/94924302291.pdfIn PDF document text
  • http://musclecar-taps.com/js/upload/files/41705938452.pdfIn PDF document text
  • https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160f9fdead75db---jejuxasekoxojot.pdfIn PDF document text
  • http://osoboebludo.com/ckfinder/userfiles/files/xuruwoxipipuwademevajosob.pdfIn PDF document text
  • http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090d18ed18e3---wajelef.pdfIn PDF document text
  • http://faw-asia.com/image/upload/files/tojefomolazovejafenalimu.pdfIn PDF document text
  • http://balone.net/_upload/file///dexurezofezutomekupupu.pdfIn PDF document text
  • https://weyergans-hcc.lv/userfiles/file/21090808153.pdfIn PDF document text
  • http://applecentervn.com/uploads/image/files/nokowelajinob.pdfIn PDF document text
  • http://www.norestim.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608c1fb44e4b2---vafobusupowokegowul.pdfIn PDF document text
  • https://csom.cz/wp-content/plugins/super-forms/uploads/php/files/a6674134ceef2c74cdc8c2ddbdc26a7b/mekiveji.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=what+is+arithmetic+densityPDF 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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