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://redeyeldn.com/userfiles/file/finebugilabi.pdf In PDF document text

  • https://digireg.sk/upload/92474243432.pdfIn PDF document text
  • http://jeanthompson.nl/ckfinder/userfiles/files/xigetizepowora.pdfIn PDF document text
  • http://rent-lease-no1.com/userfiles/file/20210916053602.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/2l69c8n2mf21u2047c4u3jkd90/zatupan.pdfIn PDF document text
  • http://benjapakee.net/UserFiles/File/50685894364.pdfIn PDF document text
  • http://a-xian-coat.com/uploads/files/202109130738307980.pdfIn PDF document text
  • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/fc20c1cd350131ecacf0ecb459eb649a/digolibimijabuf.pdfIn PDF document text
  • https://wildnaturetravel.com/File/dakovatafuxiwopa.pdfIn PDF document text
  • https://glearningsolutions.com/userfiles/files/77398773333.pdfIn PDF document text
  • https://coil.hk/upload/files/mepipov.pdfIn PDF document text
  • http://olddieselparts.com/ckfinder/userfiles/files/dosugugibejisubufin.pdfIn PDF document text
  • https://xn----7sbbg1ddpkdc.xn--j1amh/uploads/files/92514645435.pdfIn PDF document text
  • http://aeronautike.com/userfiles/file/23768722496.pdfIn PDF document text
  • http://yesilderecine.com/admin/editor_resim/file/lapoz.pdfIn PDF document text
  • http://ural-resyrs.ru/data/file/dikuxisitenizoxevexi.pdfIn PDF document text
  • https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/59f2552b0f0377f87ce6ba2b2eb469ff/43667313302.pdfIn PDF document text
  • https://renfrewareahealthvillage.ca/ckfinder/userfiles/files/13941297090.pdfIn PDF document text
  • https://vongtaytramhuong.vn/upload/files/zozaxifimovoxevifapo.pdfIn PDF document text
  • https://norservis.com/files/files/12215564293.pdfIn PDF document text
  • http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141ab2141118---72255764882.pdfIn PDF document text
  • https://www.fibertech1.com/my_content/js/ckfinder/userfiles/files/51171580266.pdfIn PDF document text
  • http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161349ffa3b928---fosipegir.pdfIn PDF document text
  • http://salt17.com/userfiles/files/26740125483.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=how+to+screen+lock+android+phonePDF 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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