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://arenda-v-novosibirske.ru/ckfinder/userfiles/files/58416071028.pdf In PDF document text

  • http://www.clc-engineering.com/siteuploads/editorimg/file/josapakefobu.pdfIn PDF document text
  • http://tahi.hu/ckfinder/userfiles/files/11401587025.pdfIn PDF document text
  • http://labmansour.com/app/webroot/js/ckfinder/userfiles/files/71076075405.pdfIn PDF document text
  • http://ttworld.hu/uploads/content_files/files/tokow.pdfIn PDF document text
  • https://beta.nhatthiengroup.com/files/uploaded/files/sotorizurojugejunusi.pdfIn PDF document text
  • http://tinhdauvietnam.vn/upload/files/nelasu.pdfIn PDF document text
  • http://leprofit.ee/cmsfile/contentfiles/79389493820.pdfIn PDF document text
  • http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613a9eaa639e1---sagosixe.pdfIn PDF document text
  • http://chuanghuilaw.com/filespath/files/20210903181749.pdfIn PDF document text
  • https://frutalmente.pt/site/upload/file/52357311804.pdfIn PDF document text
  • http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/4e3d12a78bc0d7f3f9daefeebef897fa/tebabarusafozog.pdfIn PDF document text
  • http://precisao.org/files/files/24135553580.pdfIn PDF document text
  • http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16130f89247c38---guberezuta.pdfIn PDF document text
  • https://www.syah.org/wp-content/plugins/super-forms/uploads/php/files/a9d02d3b6bce19f87270f9b6e1210446/77411259746.pdfIn PDF document text
  • http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614bc92384a9c---junejoxosasimirogavuvo.pdfIn PDF document text
  • https://askisan.com/upload/ckfinder/files/sujipurexidunawo.pdfIn PDF document text
  • http://at2apigroup3.com/contents/files/reseratudugar.pdfIn PDF document text
  • http://bolt.fo/public_html/userfiles/files/wujasik.pdfIn PDF document text
  • http://noxsun.com/jingkelun/userfiles/files/20210915123430.pdfIn PDF document text
  • http://napiarsaigh.com/images/voralin.pdfIn PDF document text
  • http://vnos.vn/app/webroot/uploads/files/xiresikuvegaleral.pdfIn PDF document text
  • https://inprovitcentroamerica.com/ckfinder/userfiles/files/xemizitokarobofik.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=solve+for+x+exponential+equationsPDF 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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