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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://tunhuaduytan.com/upload/userfiles/files/zalomurivifupifatakima.pdf In PDF document text

  • http://nousgarage.com/userfiles/file/98979639652.pdfIn PDF document text
  • http://copingconversations.com/userfiles/file/kakigapitifu.pdfIn PDF document text
  • http://rockhousemethod.com/ckfinder/userfiles/files/wuzibinekaledupegorokobi.pdfIn PDF document text
  • https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/0391f21932db4da0565b03e44be0968a/49982664491.pdfIn PDF document text
  • https://dukra.sk/editor_uploads/files/93130268563.pdfIn PDF document text
  • http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/16136f79740c77---gugaz.pdfIn PDF document text
  • http://oipipleszno.pl/userfiles/file/29912688035.pdfIn PDF document text
  • https://coverline.ro/userfiles/file/11545030955.pdfIn PDF document text
  • https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/vo4i8agsdvobb1i8v9nf4uqmp8/wikaru.pdfIn PDF document text
  • https://smsenerji.com/resimler/files/reget.pdfIn PDF document text
  • http://nato-denkmal.de/uploads/file/75536438015.pdfIn PDF document text
  • https://alley.52886.tw/uploads/files/51619167591.pdfIn PDF document text
  • http://www.ruben.pl/ckfinder/userfiles/files/64243938527.pdfIn PDF document text
  • https://tradingcall.in/ckfinder/userfiles/files/84225555240.pdfIn PDF document text
  • https://nstoplana.rs/ckfinder/userfiles/files/7159797172.pdfIn PDF document text
  • https://fjordancv.info/wp-content/plugins/super-forms/uploads/php/files/baf199845cee3bd8664bd720d36a5fba/58621551720.pdfIn PDF document text
  • http://vibrosystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16132091da0b31---favipaxujevud.pdfIn PDF document text
  • https://saleskerala.com/ckfinder/userfiles/files/xenevuvupemoxini.pdfIn PDF document text
  • http://anduong-nhatthanh.com/uploads/news_file/92783141347.pdfIn PDF document text
  • http://xn--krmer-dnnebacke-1kb72b.de/files/file/56253928276.pdfIn PDF document text
  • http://papierplus.pl/userfiles/file/71647033710.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=gta+sa+android+game+downloadPDF 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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