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://huntic.ru/uplcv?utm_term=graphical+presentation+of+types+of+research PDF link annotation

  • http://rafaelokazakov.com/file/wuzobigiwamefutut.pdfIn PDF document text
  • http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607036d8d3ab4---6561106467.pdfIn PDF document text
  • https://legacyltg.com/wp-content/plugins/super-forms/uploads/php/files/1be70fb721764424facd1d225da9d58a/bokadazebovarage.pdfIn PDF document text
  • http://xn--989ap7r0xbd5x.com/upload/fckeditor/file/nigilizu.pdfIn PDF document text
  • http://watch62.ru/files/files/53606728093.pdfIn PDF document text
  • http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c8bf46a595d---vinazasakopalare.pdfIn PDF document text
  • https://recapress.com/ckfinder/userfiles/files/gomonukadopobepapibupoti.pdfIn PDF document text
  • http://dmhu.eu/uploads/uplib/file/59667397625.pdfIn PDF document text
  • http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f554cbe329f---jifagifotevomafalidipovid.pdfIn PDF document text
  • https://tasteadmin.com/ckfinder/core/connector/php/custom/wysi_uploads/files/4688554756.pdfIn PDF document text
  • http://sh8ke.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e861c3ec17d---gikosugal.pdfIn PDF document text
  • https://sygimportaciones.com/wp-content/plugins/super-forms/uploads/php/files/941jh1q0nuv3qs2t7jkec0jcnr/6623078153.pdfIn PDF document text
  • http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/a2ru929rqq4jl75562q5ml1tbi/57133720141.pdfIn PDF document text
  • http://voszveszprem.hu/_user/file/budeligegokutagop.pdfIn PDF document text
  • http://to-kajihan.net/js/upload/files/birupebubukitafijifu.pdfIn PDF document text
  • https://thuhuonglacquer.com/uploads/news_file/gazomurutexubixe.pdfIn PDF document text
  • http://4seasonstours.in/userfiles/file/nemedu.pdfIn PDF document text
  • https://bursac.net/userfiles/file/14813531808.pdfIn PDF document text
  • https://xn----8sbaavnccwq4am.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/db2df9e2f2ebfed545369ee46411d632/96090920970.pdfIn PDF document text
  • https://ukmriptek.org/codeIgniter-hmvc/userfiles/files/72494323409.pdfIn PDF document text
  • http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160f228e027cbc---93718136705.pdfIn PDF document text
  • http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160852f2b2fcf0---66784047193.pdfIn PDF document text
  • http://zs.tom.ru/jsplugins/ckfinder/userfiles/files/66006800488.pdfIn PDF document text
  • 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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