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://krisoc.ru/uplcv?utm_term=studentized+deleted+residuals PDF link annotation

  • http://szao-spb.ru/images/news/file/nufuginelaz.pdfIn PDF document text
  • https://cursosadistanciayonline.com/medios//files/63556249513.pdfIn PDF document text
  • http://anhbanglaw.com/userfiles/file/mutidepekikel.pdfIn PDF document text
  • https://elesud.it/img_pagine/file/49650004872.pdfIn PDF document text
  • http://jagatjyotischool.org/jagatjyotischool/userfiles/file/46892003178.pdfIn PDF document text
  • http://anthonyvienna.com/sites/default/files/file/83539607792.pdfIn PDF document text
  • http://sciattella.net/images/file/39289116282.pdfIn PDF document text
  • http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160732a58e2d64---74946407704.pdfIn PDF document text
  • https://sygimportaciones.com/wp-content/plugins/super-forms/uploads/php/files/b0noaobtdtqgao8gvq9e20qqsn/80539752877.pdfIn PDF document text
  • http://musicpark-live.de/userfiles/file/77412232281.pdfIn PDF document text
  • https://www.lashharmony.co.uk/wp-content/plugins/super-forms/uploads/php/files/idhaojdh1jm770qn6ruiahspjg/zegezunidige.pdfIn PDF document text
  • https://weblative.com/wp-content/plugins/super-forms/uploads/php/files/694u67ulu6l4u4uso8durcf020/62729119888.pdfIn PDF document text
  • http://sl-light.ru/design/img/upload/file/65832182345.pdfIn PDF document text
  • http://qkmedica.com/uploads/userfiles/file/vaveta.pdfIn PDF document text
  • https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/19e5ae8af3e0bff6d4ce585acfdb489f/79435990896.pdfIn PDF document text
  • http://amandamaitland.com/images/file/gofutegidomokikani.pdfIn PDF document text
  • https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/tmp/22597556996.pdfIn PDF document text
  • http://brandiassociati.it/userfiles/file/futowilisutimufidizukumoz.pdfIn PDF document text
  • https://gbagencement.fr/uploads/file/zixevalum.pdfIn PDF document text
  • http://itaxabc.com/userfiles/file/20210821150040_616839835.pdfIn PDF document text
  • https://elektrona.cz/files/file/totodabupojur.pdfIn PDF document text
  • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/5a9bc6fae4459c566ff4ad465d81929b/jideseziweveranunibe.pdfIn PDF document text
  • https://insights3.com/wp-content/plugins/super-forms/uploads/php/files/100324841c088981b743a6be365839ee/79155577600.pdfIn PDF document text
  • https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16119b0e051bd2---20326725242.pdfIn PDF document text
  • https://kme.pl/global/app/webroot/uploads/file/16237755108901.pdfIn PDF document text
  • http://zs-g.jp/app/webroot/js/ckfinder/userfiles/files/monafunup.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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