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://pistant.ru/uplcv?utm_term=c+words+that+describe+someone PDF link annotation

  • http://bjsixiang.com/jingkelun/userfiles/files/20210911190915.pdfIn PDF document text
  • http://ranahytta.com/ckfinder/userfiles/files/60361552884.pdfIn PDF document text
  • http://youil.org/userData/board/file/71042154291.pdfIn PDF document text
  • https://tese.in/ckfinder/userfiles/files/71551918531.pdfIn PDF document text
  • http://www.psychophonie-tarbes.com/ckfinder/userfiles/files/46235486151.pdfIn PDF document text
  • https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613de4358f015---nifitipir.pdfIn PDF document text
  • https://shevtsov-art.com/uploads/files/83357999308.pdfIn PDF document text
  • https://xn--80aaijzh9b.xn--90ae/documents/file/xiwuwudamawojuguta.pdfIn PDF document text
  • http://dichvumucin.com/upload/ckupload/files/kigebuwovinejuru.pdfIn PDF document text
  • http://jgbt.us/pds/userfiles/files/todekemolozusan.pdfIn PDF document text
  • http://marleenjansen.nl/images/uploadfiles/53130926975.pdfIn PDF document text
  • https://dovolena-jiznicechy.cz/uploads/mapepemoketevusujezebajab.pdfIn PDF document text
  • https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ed73ff0a77---kuvemotoborupapid.pdfIn PDF document text
  • http://dentalweek.eu/userfiles/files/darubidir.pdfIn PDF document text
  • http://aviapartner.biz/js/ckfinder/userfiles/files/nidogoziwosepiwotoso.pdfIn PDF document text
  • https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/ee257400c2d2e8099b2184e1f5d8c468/89870373011.pdfIn PDF document text
  • http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16136e83e17360---nipobawepunenavomasuvosuk.pdfIn PDF document text
  • http://neza.cz/UserFiles/File/14519674374.pdfIn PDF document text
  • http://hanyangsteel.com/files/fckeditor/file/91556002761304f617f139.pdfIn PDF document text
  • http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1613986c197c80---4244253456.pdfIn PDF document text
  • http://shepardinteriordesign.com/rw/upload/file/waxijewetofaguxezixu.pdfIn PDF document text
  • http://taeguektour.com/FileData/ckfinder/files/20210911_B89804BC39DA495E.pdfIn PDF document text
  • http://khocabien.com/uploads/files/zibazifurodurukupapujuto.pdfIn PDF document text
  • https://www.xyoaa.org/sites/default/files/files/dulaxasa.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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