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://irlanc.ru/uplcv?utm_term=periodic+table+of+elements+with+full+names+list PDF link annotation

  • http://vonkoenigsmund.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606cee18594a8---18964686582.pdfIn PDF document text
  • https://extremetour74.ru/wp-content/plugins/super-forms/uploads/php/files/cf31e6c313c8fe734fe26a4764c45b04/jobesegewevavezire.pdfIn PDF document text
  • http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160b1a29177536---50772077917.pdfIn PDF document text
  • http://2girlstrippin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610ab1f52b3bb---gafedexizoki.pdfIn PDF document text
  • http://faithleader.org/js/ckfinder/userfiles/files/fiwosifufuzedowilufibibam.pdfIn PDF document text
  • https://ldoris.com/upfile/files/20210730012646.pdfIn PDF document text
  • http://debandhelder.nl/ckfinder/userfiles/files/muxuvi.pdfIn PDF document text
  • http://www.sevenchurchestour.net/seven/wp-content/plugins/formcraft/file-upload/server/content/files/160f48c08cdca7---68028724791.pdfIn PDF document text
  • https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b750372b36e---botivatud.pdfIn PDF document text
  • http://eca.or.th/ckfinder/userfiles/files/xigekurepanalukip.pdfIn PDF document text
  • https://www.kbstephens.com/wp-content/plugins/super-forms/uploads/php/files/6f922f52bd83c3fb28b28d02c5a6a7b3/11184859246.pdfIn PDF document text
  • https://stef-nancy.fr/upload/document/relalunit.pdfIn PDF document text
  • https://actaviaserica.org/board/file/files/5640494438.pdfIn PDF document text
  • https://underworldgear.com/upload/users/files/zijudevazulolerirawizunuz.pdfIn PDF document text
  • http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/160841e8f5b8a1---47663536225.pdfIn PDF document text
  • https://preciseenergygroup.com/media/40984344496.pdfIn PDF document text
  • https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/7f55984f4328211a0245c8819e09bd44/32602179527.pdfIn PDF document text
  • http://danieldesignpro.com/userfiles/13207308284.pdfIn PDF document text
  • http://kondicionery-lubertsy.ru/upload_picture/file/45731726218.pdfIn PDF document text
  • http://anhuizhkj.com/upload_fck/file/2021-6-25/20210625151626720063.pdfIn PDF document text
  • https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076610fec783---86390366651.pdfIn PDF document text
  • http://shsclassof1970.org/clients/872719/File/lumiwinadev.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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