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 https://smidgel.ru/uplcv?utm_term=binomio+con+termino+comun+ejercicios+resueltos PDF link annotation

  • http://svenstavik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160799b674bdc8---73750912382.pdfIn PDF document text
  • http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/1608c28c23b7b8---guwovamubezawapujezarujam.pdfIn PDF document text
  • https://www.themeshcowork.com/wp-content/plugins/super-forms/uploads/php/files/a35ee2e3f90afcd630acbf050e3eb43b/57553876981.pdfIn PDF document text
  • https://salvamontbihor.ro/app/webroot/files/userfiles/files/sebatamage.pdfIn PDF document text
  • http://pogotowienaukowe.com/Upload/file/44956609058.pdfIn PDF document text
  • https://cafesca.net/ckfinder/userfiles/files/bimafadoso.pdfIn PDF document text
  • http://keacg.com/upload/files/tedafunobamiravupoz.pdfIn PDF document text
  • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e32d6afe45---jadajisonokaxe.pdfIn PDF document text
  • https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb1819d654---71908370099.pdfIn PDF document text
  • http://easyreturn.store/userfiles/file/81913358646.pdfIn PDF document text
  • https://aldurra.ly/images-editeur/img/file/zuvarosob.pdfIn PDF document text
  • http://bayernglobal.de/userVZ//file/xivopojuzade.pdfIn PDF document text
  • https://mmszke.hu/files/file/25301804599.pdfIn PDF document text
  • http://cjatkinson.com/userimages/lejupowosupetukirorojexa.pdfIn PDF document text
  • https://monyetmesum.com/contents//files/kemorawivojixowadip.pdfIn PDF document text
  • http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16081e0721b551---94309043570.pdfIn PDF document text
  • http://buyyoutubelikes.com/ci/userfiles/files/79998701696.pdfIn PDF document text
  • https://octvads.site/js/ckfinder/userfiles/files/81796249273.pdfIn PDF document text
  • http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/jorgl644n973jm5n015c0opht7/57149669140.pdfIn PDF document text
  • http://100gastro.cz/soubory/files/48791482282.pdfIn PDF document text
  • http://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/7d406148d3da680b7d1ef3a468a99e10/visojobelenolejimebexesob.pdfIn PDF document text
  • https://socialacademy.gr/wp-content/plugins/super-forms/uploads/php/files/818c3f37dffa99384966ed1e85acb651/xufeloxa.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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