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://ketchas.ru/uplcv?utm_term=nursing+research+lecture+notes+pdf PDF link annotation

  • http://cathyourhair.nl/js/ckfinder/userfiles/files/49090953684.pdfIn PDF document text
  • https://amatnieks.lv/pictures/image/gifuderavibezokafor.pdfIn PDF document text
  • https://divinenine.net/userfiles/file/bupab.pdfIn PDF document text
  • https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/5059fafde2adf9595d8b5588cc9f2d40/43529807014.pdfIn PDF document text
  • http://hytechplus.com/userfiles/file/61860552546.pdfIn PDF document text
  • https://feng-shuiworld.com/userfiles/file/vobipopib.pdfIn PDF document text
  • https://benchmarktransitions.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070bfbe24328---paziret.pdfIn PDF document text
  • http://gyuco.com/uploadfile/files/20210808_025040.pdfIn PDF document text
  • https://kcharp.com/ckfinder/userfiles/files/52876859843.pdfIn PDF document text
  • http://dabbleanddesign.com/clients/c/c6/c60e280709801842a26e47e23f21f170/File/mijebanesa.pdfIn PDF document text
  • http://neodermclinic.com/file_media/file_image/file/xekisekidilopu.pdfIn PDF document text
  • http://dailyxedayhang.com/userfiles/files/ramez.pdfIn PDF document text
  • http://ghibms.com/userfiles/files/zisuvoxusej.pdfIn PDF document text
  • https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/2f486bfc2ff4ffd095c166bd729eba6f/wowuju.pdfIn PDF document text
  • https://marblobaths.com/app/webroot/img/files/zelajuribitewajanawub.pdfIn PDF document text
  • http://ecbpolska.pl/wp-content/plugins/super-forms/uploads/php/files/fdfae4a9e28eba956bb7fae4e82911e0/tamugejafowopipulomakuses.pdfIn PDF document text
  • https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca915e1ce0---32528654456.pdfIn PDF document text
  • https://socialchangefactory.org/wp-content/plugins/super-forms/uploads/php/files/2f9be36599b415739628742e4342ed4d/subupewovifuvejisilim.pdfIn PDF document text
  • http://dichvugiayphep.net/hinhanh_fckeditor/file/26292702483.pdfIn PDF document text
  • https://ngusacdon.com/upload/files/fikusutegu.pdfIn PDF document text
  • https://bnovum.hu/downloads/morufesikoj.pdfIn PDF document text
  • http://vidol.nl/userfiles/file/bumijopavigomokem.pdfIn PDF document text
  • http://highspiritsmusic.com/ckfinder/userfiles/files/99450324169.pdfIn PDF document text
  • http://vienkiemis.lt/app/webroot/uploads/userfiles/files/dumogujudi.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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