Malicious PDF — malware analysis report

Heuristics 8

• 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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613acba9f1f1a---kapalatozepebidof.pdf In PDF document text

  • http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16138c21b823e1---vowadugasek.pdfIn PDF document text
  • http://krukaiart.com/userfiles/files/sebevizugava.pdfIn PDF document text
  • http://www.radeton-cz.vasestranky.cz/ckfinder/userfiles/files/pazepimisuvu.pdfIn PDF document text
  • http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c7ab8687cd---kusanadonavoperulabukos.pdfIn PDF document text
  • http://sangjeom.com/userfiles/file///xobijorefanixilofude.pdfIn PDF document text
  • http://modamoda.nl/uploads/pic_lib/file/xujap.pdfIn PDF document text
  • http://tuvantindat.com/uploads/2021-09-11/images/files/kusumanixupuxuf.pdfIn PDF document text
  • http://hairfibers24.com/upload/file/86015613496.pdfIn PDF document text
  • http://lasermedia.cn/userfiles/file/zimogaliradupe.pdfIn PDF document text
  • http://go-pxl.com/uploads/files/7684133698.pdfIn PDF document text
  • http://jaqalsports.com/files/file/xekumotuvedovonenorukol.pdfIn PDF document text
  • http://duhochoangthanh.com/upload/files/47303006246.pdfIn PDF document text
  • http://avvolodin.ru/upload/file/zijurufedoduroxagev.pdfIn PDF document text
  • https://coebmsf.com/userfiles/file/43781335083.pdfIn PDF document text
  • https://calprin.com/ckfinder/userfiles/files/75050028504.pdfIn PDF document text
  • http://novo-foto.ru/ckfinder/userfiles/files/migotusav.pdfIn PDF document text
  • https://linardi.ru/files/file/93257877050.pdfIn PDF document text
  • http://teen.plovdivweek.com/js/ckfinder/userfiles/files/gedalutefosovologul.pdfIn PDF document text
  • https://avenue102.com/uploads/file/87688751339.pdfIn PDF document text
  • http://ttmm.co.jp/ckfinder/userfiles/files/47028158643.pdfIn PDF document text
  • https://www.oasipizza.it/wp-content/plugins/formcraft/file-upload/server/content/files/161348b509975c---retinexa.pdfIn PDF document text
  • https://childrencareandliteracysociety.org/userfiles/files/65179279023.pdfIn PDF document text
  • https://hiperaktivite.info/userfiles/files/49229229008.pdfIn PDF document text
  • https://pensiuneavalentina.ro/app/webroot/file/malugeguxizupimavuge.pdfIn PDF document text
  • https://voicelux.ru/wp-content/plugins/super-forms/uploads/php/files/3b284bba20e9cd3e02f4a2fc2e5e566d/31175315780.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=how+to+share+file+phone+to+laptopPDF 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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