Malicious PDF — malware analysis report

Heuristics 7

• 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 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://sitebyside.ru/wp-content/plugins/super-forms/uploads/php/files/6043a183ef41bb8f6d14ff95dad3dc9b/39825311527.pdf In PDF document text

  • https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/fd3e9ed9a3361c28235edcc879df38fc/nogekujadotopekenowiwogew.pdfIn PDF document text
  • https://vv-alc.nl/uploads/files/lujubowetinodedodekukine.pdfIn PDF document text
  • http://www.ramseier-appenzell.ch/elrada/js/ckfinder/userfiles/files/fupekodakeluvajejov.pdfIn PDF document text
  • http://hykylalumni.org/userfiles/kuwovogoviwaxitisupanifo.pdfIn PDF document text
  • https://at2-turbo-j3t.com/contents//files/tikobotidurosajinuluk.pdfIn PDF document text
  • https://ludifrance.fr/userfiles/file/72147150438.pdfIn PDF document text
  • https://giritrademark.com/content_files/files/jesodejuwogesafumuka.pdfIn PDF document text
  • https://zzhqhi.com/d/files/74356619554.pdfIn PDF document text
  • http://mcutech.net/upload/2021/08/file/1629706444709347635.pdfIn PDF document text
  • https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/160a3bbb6b384f---81934172010.pdfIn PDF document text
  • http://dunajecbiala.pl/upload/File/dusafizu.pdfIn PDF document text
  • https://harrisitalia.it/uploads/file/88734380716.pdfIn PDF document text
  • https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075318adb278---15958229302.pdfIn PDF document text
  • http://yejida.com/userfiles/file/wopozovupedubixa.pdfIn PDF document text
  • http://juentai.com/userfiles/files/17629232614.pdfIn PDF document text
  • https://sport-jicin.cz/dokumenty/48656756133.pdfIn PDF document text
  • https://residenciasanamaro.es/userfiles/files/18842904026.pdfIn PDF document text
  • http://resortcrimea.com/ckfinder/userfiles/files/poniluvupuwinewu.pdfIn PDF document text
  • https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/08cb1c95452f8a121ab539406365c059/rawosebus.pdfIn PDF document text
  • http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076f2c349804---96863862190.pdfIn PDF document text
  • http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/160bc67491af79---13783557344.pdfIn PDF document text
  • https://luxartparquet.com/wp-content/plugins/super-forms/uploads/php/files/3f6fcc14c3c2ad273808ad79849434c8/gatijanori.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=carl+sandburg+chicago+worksheetPDF 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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