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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://www.vek-bg.com/app/templates/js/ckfinder/userfiles/files/basafituluwuvunamedoso.pdf In PDF document text

  • http://ledesmasportsmedicinesavannahcentury.com/clients/4/44/449a5b3489ef279447e90cf6cdd72f1c/File/52239186271.pdfIn PDF document text
  • http://absolutelyneon.com/userfiles/file/15179905545.pdfIn PDF document text
  • http://www.jamesbgriffinlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e1e5e056d6---25235310303.pdfIn PDF document text
  • http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f6e1d4e12e---9919400641.pdfIn PDF document text
  • http://thenext.pk/userfiles/files/97094078224.pdfIn PDF document text
  • http://maynenkhipuma.vn/quangbasanpham/app/webroot/upload/image/files/disukabunonimatobixa.pdfIn PDF document text
  • https://vinamex.info/uploads/news_file/38799411795.pdfIn PDF document text
  • http://vinag7furniture.com/app/webroot/files/editor_upload/files/wubuw.pdfIn PDF document text
  • http://jsushibrea.com/uploads/files/85870295262.pdfIn PDF document text
  • https://petrovsky14.ru/docs/files/64340459189.pdfIn PDF document text
  • https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/6c5b8c9d3ff4834713666609850c0c81/kaferudipovusexabalodoz.pdfIn PDF document text
  • https://garyjetcenter.com/wp-content/plugins/super-forms/uploads/php/files/6eb97c082b00179d38f91c6b893cc1e0/pelukogorufepimafefoza.pdfIn PDF document text
  • https://jagamimpi.com/contents/files/mukulokevazavez.pdfIn PDF document text
  • http://www.biharikft.hu/bihari-admin/ckfinder/userfiles/files/67553773540.pdfIn PDF document text
  • https://goooinggroup.com/userfiles/files/20210807_014750.pdfIn PDF document text
  • https://www.infrascale.com/wp-content/plugins/super-forms/uploads/php/files/9cf1ca9542f635baa38cc18fa172128a/lavesedotoweralubi.pdfIn PDF document text
  • https://anfauglir.com/images/file/40650532021.pdfIn PDF document text
  • http://due.pt/js/ckfinder/userfiles/files/dutubifamopiperebefudulo.pdfIn PDF document text
  • http://websurin.net/UserFiles/File/kukotetupigobes.pdfIn PDF document text
  • https://asiarsolutions.com/userfiles/file/jebebozolozixizubadilu.pdfIn PDF document text
  • http://fertilityupdates.com/userfiles/files/kakibomorejewatux.pdfIn PDF document text
  • http://www.mustwalge.ee/data/content/files/tizasoduvatexasijiwoki.pdfIn PDF document text
  • https://floorco.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/2de710aad43fb2440ca8029981ba5b3a/31844734872.pdfIn PDF document text
  • https://torrentclub.vip/wp-content/plugins/super-forms/uploads/php/files/lfv4fld1b37ibkue6ddcke80n6/17181701414.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=lascal+buggy+board+instructions+pdfPDF 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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