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=samsung+galaxy+s4+duos+gt+i9502+32gb PDF link annotation

  • https://catherinehourihan.art/wp-content/plugins/super-forms/uploads/php/files/cd523e7ab7e9c24f32d5bac00e12a2d8/bewibawasedonisumekona.pdfIn PDF document text
  • http://elencostruzioni.it/userfiles/files/20479388228.pdfIn PDF document text
  • http://lamgi.pl/ckfinder/userfiles/files/71590230751.pdfIn PDF document text
  • http://upservice.expert/admin/ckfinder/userfiles/files/79578877417.pdfIn PDF document text
  • https://portalbime.com/UploadedFiles/New/file/lagulilanatilejunatoja.pdfIn PDF document text
  • http://gleb777.com/fck_upload/file/fezawuwubuwujibujuwujogoz.pdfIn PDF document text
  • https://www.champagne-auge-dascier.com/ckfinder/userfiles/files/mixexezidakifafolumefula.pdfIn PDF document text
  • https://gizaviation.com/uploads/files/devigupaduzapon.pdfIn PDF document text
  • http://centromp.it/userfiles/files/88692222256.pdfIn PDF document text
  • http://labmansour.com/app/webroot/js/ckfinder/userfiles/files/37880121251.pdfIn PDF document text
  • https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/erb2ioir38p1tt0ma9tjn9klql/38894916433.pdfIn PDF document text
  • http://avon-bratislava.com/files/files/wevada.pdfIn PDF document text
  • https://gelblighting.com/userfiles/files/zitanoligomid.pdfIn PDF document text
  • http://csc-0898.com/userfiles/file/20210902042022_dbtccf.pdfIn PDF document text
  • http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16138bae1f3dc5---sefunukepatelu.pdfIn PDF document text
  • http://stonestudio.pl/files/upload/file/43218653929.pdfIn PDF document text
  • http://zekidilektekstil.com/images_upload/files/83095320920.pdfIn PDF document text
  • http://1000projects.ru/upload_picture/file/72796114661.pdfIn PDF document text
  • http://ingenermarket.ru/userfiles/zevawu.pdfIn PDF document text
  • https://komunalno.vrgorac.hr/files/31568057791.pdfIn PDF document text
  • http://jngf.cn/files/file/xorevuzosetuwuposod.pdfIn PDF document text
  • http://pajurioverslas.lt/ckfinder/userfiles/files/59633403657.pdfIn PDF document text
  • https://optical-axis.com/uploads/files/202109100743579979.pdfIn PDF document text
  • https://vinatech.com/userfiles/file/jevitulobon.pdfIn PDF document text
  • https://jackinthegymtpe.com/uploads/files/202109011803121228.pdfIn PDF document text
  • http://tomasmrazek.cz/userfiles/file/16060473105.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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