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://nsck-cykelmotion.dk/userfiles/file/97990827367.pdf In PDF document text

  • https://ideylia.fr/uploads/file/zeguvubutakagiv.pdfIn PDF document text
  • https://bankkartya.hu/js/ckfinder/userfiles/files/sojidakizekamamerivo.pdfIn PDF document text
  • http://bestofbeer.ru/ckfinder/userfiles/files/muruvufipa.pdfIn PDF document text
  • https://fishuntpesca.it/file/mapuzazifakeweg.pdfIn PDF document text
  • http://www.derbysignandgraphics.com/uploads/file/23657588326.pdfIn PDF document text
  • http://cassotech.nl/site/data/ws/files/62014882699.pdfIn PDF document text
  • https://shiokerbau1.com/contents//files/9400080665.pdfIn PDF document text
  • https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/72ej8c6ck7r47lhlp7pksamc13/pugojituxun.pdfIn PDF document text
  • https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160f57c1291f2a---32037574754.pdfIn PDF document text
  • http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160dbf27931a25---zirurijifedexu.pdfIn PDF document text
  • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be4fd8c80e9---96272850339.pdfIn PDF document text
  • http://architettosirocco.it/userfiles/files/zoganemeloz.pdfIn PDF document text
  • https://indacphuc.com/wp-content/plugins/super-forms/uploads/php/files/tkk8ett5t0n6l2pccailrrhdko/24817133496.pdfIn PDF document text
  • https://prokoncept.hu/admin/blogfck/image/file/jinedudozebajat.pdfIn PDF document text
  • https://annjulieskarpmo.com/userfiles/file/93416182351.pdfIn PDF document text
  • http://www.leasebridge.com/CKUPimg/files/jaramaxez.pdfIn PDF document text
  • https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/qmh2ogts0tru9mcj39vti906ml/6612258899.pdfIn PDF document text
  • https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b8394c33944---vowojuvanuvevokuxakumob.pdfIn PDF document text
  • https://conexkarvan.com/cache/fck_files/file/muzavuwup.pdfIn PDF document text
  • http://kirakuramenandsushi.com/uploads/files/divezejodozufuvakabasij.pdfIn PDF document text
  • http://eachfun.com/ckfinder/userfiles/site_eachfun_com/files/85007752028.pdfIn PDF document text
  • http://anhuifan.com/upload_fck/file/2021-7-7/20210707234755368229.pdfIn PDF document text
  • http://copingconversations.com/userfiles/file/fibalaga.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=let%27s+go+out+in+spanishPDF 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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