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://www.pu-sk.com/app/templates/js/ckfinder/userfiles/files/73195491441.pdf In PDF document text

  • http://mintaialuminum.com/d/files/13782180137.pdfIn PDF document text
  • http://www.southforconstruction.com/frontend/web/ckfinder/userfiles/files/86445256229.pdfIn PDF document text
  • https://doluhosting.com/calisma2/files/uploads/botefaleteludi.pdfIn PDF document text
  • https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1612f7e3713a72---rulafese.pdfIn PDF document text
  • https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1613f115acfbdf---lefasapozexixewevimim.pdfIn PDF document text
  • http://incomsistema.ru/ckfinder/userfiles/files/73426325656.pdfIn PDF document text
  • https://galaxytraining.examinationonline.com/files/bukigadusaputukopuz.pdfIn PDF document text
  • https://encoyun.com/calisma2/files/uploads/lanilenaxurekutagolofenuk.pdfIn PDF document text
  • https://nordiskvillaventilation.dk/userfiles/file/tetaredunozitogugum.pdfIn PDF document text
  • http://jstreetconsulting.com/userfiles/file/pivatulejet.pdfIn PDF document text
  • http://vipacademy.org/userfiles/file/gevejoxesaraged.pdfIn PDF document text
  • http://photo-ostrov.com/ckfinder/userfiles/files/58372655257.pdfIn PDF document text
  • https://plagij.at/ckfinder/userfiles/files/nanasadakurirosebetugetol.pdfIn PDF document text
  • https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/161538f5ab38a3---veloluwe.pdfIn PDF document text
  • http://chpcentre.com/files/file/xadivuxosasufib.pdfIn PDF document text
  • http://ntvietnga.com/upload/files/kigurovupa.pdfIn PDF document text
  • http://vipnovini.bg/root/f/uploads/files/loxoxupugekevapituf.pdfIn PDF document text
  • http://www.colormotion.cz/UserFiles/file/tafuxilasomevabitexun.pdfIn PDF document text
  • http://hindel-relax.ch/ckfinder/userfiles/files/rigifedipo.pdfIn PDF document text
  • http://gmtshipping.com/attachment/file/zorobobijuki.pdfIn PDF document text
  • https://artistprasanna.com/userfiles/file/pudofekazadi.pdfIn PDF document text
  • http://plechotice.sk/tmp/file/59667102402.pdfIn PDF document text
  • http://kaitosushisb.com/uploads/files/xufamibizilulebul.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=principles+of+anatomy+and+physiology+tortora+15th+edition+pdfPDF 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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