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 https://chcial.ru/uplcv?utm_term=eugene+petit+tratado+elemental+de+derecho+romano+bibliografia PDF link annotation

  • http://www.oneworldkarate.com/fckeditorimages/userfiles/file/83435006756.pdfIn PDF document text
  • https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/4b9c1ba7851f8dc8fd6d6b484608a032/janazubiw.pdfIn PDF document text
  • http://akkoryazilim.com/userfiles/file/58471915523.pdfIn PDF document text
  • https://parokisantolukas.org/Uploads/userfiles/files/pizowesaxolidezis.pdfIn PDF document text
  • https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/15d34dac20ef786bdcf40b0d14664daf/65267102515.pdfIn PDF document text
  • https://edinburghpools.com/contents//files/zedived.pdfIn PDF document text
  • http://kondicionery-fryazino.ru/upload_picture/file/nubigum.pdfIn PDF document text
  • https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/16095d56f43795---25320988788.pdfIn PDF document text
  • http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609e09bf1f725---dosejigi.pdfIn PDF document text
  • http://hanboo.cn/Uploads/file/2021052805070370554.pdfIn PDF document text
  • https://noventa.cz/media/files/file/16156673045.pdfIn PDF document text
  • http://bertrandetgastineaudesigners.com/userfiles/file/21784369269.pdfIn PDF document text
  • http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b46a6f140ce---musabez.pdfIn PDF document text
  • https://fzclicks.com/demo/files/editor/file/19718372800.pdfIn PDF document text
  • https://supermagnum-bg.com/ckfinder/userfiles/files/zezolikadiwurusevexuk.pdfIn PDF document text
  • http://noithatachau.vn/webroot/img/files/vosuzewirotizebesini.pdfIn PDF document text
  • https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/070688dcf5148b422147f3037f33ef47/mejipuzokawefugaxumatobog.pdfIn PDF document text
  • https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/0e3f6756e28146d574b6b557323f4089/tedetekuvalimizunakowelig.pdfIn PDF document text
  • https://www.mnspineandsport.com/wp-content/plugins/super-forms/uploads/php/files/1d0a3f74678f0215a5ec9c4e874de44e/42050676637.pdfIn PDF document text
  • http://obrienbuilders.com/userfiles/file/rufokusilefalovod.pdfIn PDF document text
  • http://tverzhilservis.ru/foktver.ru/ckfinder/userfiles/files/zalimoxazukamatizemum.pdfIn PDF document text
  • http://www.findvoters.com/userfiles/file/42765286147.pdfIn PDF document text
  • https://tndvn.com/js/ckfinder/userfiles/files/kogamexedubo.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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