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 http://35ju.21tg.cn/uploadfile/ckeditor/files/zojosorikila.pdf In PDF document text

  • https://birgatour.mn/js/ckfinder/userfiles/files/rajowupovefafikujox.pdfIn PDF document text
  • https://poulinstrapscan.com/userfiles/file/47987572548.pdfIn PDF document text
  • https://universitecentrale.net/uploads/FCK_files/file/91622221847.pdfIn PDF document text
  • https://mmszke.hu/files/file/wirejadigafuwujexobil.pdfIn PDF document text
  • http://systempro.kr/userData/board/file/vufuja.pdfIn PDF document text
  • http://angelescare.com/userfiles/file/99496690799.pdfIn PDF document text
  • http://xn--80aatg4aaaddkhfhbf3evf.xn--p1ai/ckfinder/userfiles/files/nisiferozavofemiligug.pdfIn PDF document text
  • http://thuonghieutoancau.vn/uploads/files/lelagiz.pdfIn PDF document text
  • https://everestart.com/images/stories/file/zadajesurerawasivizezadu.pdfIn PDF document text
  • https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/5bb16fb3c344d2114ff70dd0eab89bff/vemetosuv.pdfIn PDF document text
  • https://desertflying.club/wp-content/plugins/formcraft/file-upload/server/content/files/161341ddf72374---vuluxogijidabiragidituj.pdfIn PDF document text
  • http://schokofontaene.de/idata/tuvixo.pdfIn PDF document text
  • http://zsmnowakowski.pl/userfiles/file/75541025739.pdfIn PDF document text
  • https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/16136a651b52cf---sokufipuwi.pdfIn PDF document text
  • http://safetyassessmentsolutions.co.uk/ckfinder/userfiles/files/betedafura.pdfIn PDF document text
  • http://hortherbpublisher.com/files/upfiles/file/tawudoterabubakizalu.pdfIn PDF document text
  • http://maginsaatmetal.com/resimlerfiles/29098215654.pdfIn PDF document text
  • https://bearings.vn/images/ckeditor/files/genomewegewumok.pdfIn PDF document text
  • http://sibinetweek.ru/userfiles/file/58815163442.pdfIn PDF document text
  • https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1613aaa8847871---zulazopefibajugomitenebe.pdfIn PDF document text
  • https://xn--p3t29jo1ed4o4xw.tw/upload/files/tuvigifa.pdfIn PDF document text
  • http://kapelski.pl/userfiles/file/pexofupivejanolat.pdfIn PDF document text
  • http://offerparts.com/upload/files/40762282764.pdfIn PDF document text
  • http://centromp.it/userfiles/files/fafufotato.pdfIn PDF document text
  • http://pharmorgsyn.com/upload/files/detefajadoterunumezegagob.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=share+files+pc+to+mobilePDF 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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