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://irlanc.ru/uplcv?utm_term=principles+of+quantum+mechanics+shankar+solutions+pdf PDF link annotation

  • https://myvideoclasses.com/ci/userfiles/files/pikemiminafadaba.pdfIn PDF document text
  • https://flardochform.se/userfiles/file/werijexikenejebuwinikid.pdfIn PDF document text
  • http://nano-vip.com/ckfinder/userfiles/files/70637383141.pdfIn PDF document text
  • https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ebb6c4a491---gokal.pdfIn PDF document text
  • http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/c051403e48486b4e6bd3991727cec771/penilibaj.pdfIn PDF document text
  • http://htwy.com/upload/file/wenasoseguwuzitujunasunuf.pdfIn PDF document text
  • http://tfh-filter.hu/_user/file/gubunixifiwujifewipapalis.pdfIn PDF document text
  • https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/789024ac6f02cfaad270295c52e20809/zowufoniku.pdfIn PDF document text
  • http://barbusci.it/maisUserFile/file/bogazunekuvazozumepalavuk.pdfIn PDF document text
  • https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/0c3e6a087494125e69343d10e1ce8b72/dezasu.pdfIn PDF document text
  • http://aan.kz/ckfinder/userfiles/files/defoves.pdfIn PDF document text
  • https://hongming-eco.com/userfiles/file/26336539267.pdfIn PDF document text
  • https://visualarchive.bg/files/buvumo.pdfIn PDF document text
  • http://33podarka.ru/pictures/files/tokavaxituvanofuxemopag.pdfIn PDF document text
  • http://studioarclab.eu/userfiles/files/numofelefegefasado.pdfIn PDF document text
  • https://calprin.com/ckfinder/userfiles/files/16041184782.pdfIn PDF document text
  • http://tnshoppingbag.com/upfiles/file/pibelisimimibegiv.pdfIn PDF document text
  • https://tuoitre.bacgiang.gov.vn/lib/ckfinder/files/majilovolewokabar.pdfIn PDF document text
  • http://22vek-omsk.ru/fck_editor_files/files/70585749264.pdfIn PDF document text
  • http://cmsrecuperocrediti.it/images/file/mozeleto.pdfIn PDF document text
  • https://websbag.com/uploads/files/93972940679.pdfIn PDF document text
  • http://anchor-m.com/js/upload/files/nirinarulu.pdfIn PDF document text
  • https://www.rockandroll.blog.br/wp-content/plugins/super-forms/uploads/php/files/ef1n4liucoqfggvvhsrq0715lh/pinaxetuzar.pdfIn PDF document text
  • https://it-remarketing.pl/app/webroot/media/files/zawilipelikekamox.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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