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://krisoc.ru/uplcv?utm_term=junji+ito+gyo+pdf PDF link annotation

  • http://pinxedien.net/upload/files/97778725685.pdfIn PDF document text
  • http://bajajsports.com/userfiles/file/696586445.pdfIn PDF document text
  • https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1613ac79923d88---givejagiteja.pdfIn PDF document text
  • http://dsagco.com/Upload/file/48452270988.pdfIn PDF document text
  • http://cgpharma.in/cote_dor_import/admin/ckfinder/userfiles/files/20026297822.pdfIn PDF document text
  • http://albertopizzetti.it/userfiles/files/xavuzinolarawidanijipuri.pdfIn PDF document text
  • https://www.havanasalsa-dance-tours.com/wp-content/plugins/super-forms/uploads/php/files/abc1b7d3b8e946a3af3d2b58a41f802a/93725803917.pdfIn PDF document text
  • https://cplastik.cz/data/cms/file/439952563.pdfIn PDF document text
  • http://kantipursecurity.com/userfiles/file/50558040365.pdfIn PDF document text
  • http://www.neoneophytou.com/ckfinder/userfiles/files/77163927739.pdfIn PDF document text
  • http://www.omt.ntou.edu.tw/ckfinder/userfiles/files/kunezuwamiguwu.pdfIn PDF document text
  • https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1613820cbdb466---16781273347.pdfIn PDF document text
  • https://serpavenger.com/ckfinder/userfiles/files/38009041448.pdfIn PDF document text
  • http://kapelski.pl/userfiles/file/peligodit.pdfIn PDF document text
  • https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/1613d1b95edbcd---26610662746.pdfIn PDF document text
  • http://unternehmensberatung-hegenbarth.de/userfiles/file/luzitufipavofukigelijap.pdfIn PDF document text
  • http://shijijiaming.net/filespath/files/20210916144958.pdfIn PDF document text
  • https://rjpexport.com/files/75847201590.pdfIn PDF document text
  • https://newsale.linyn.mobi/upload/ckeditor/pages/files/84349229872.pdfIn PDF document text
  • http://dsagco.com/Upload/file/56339413371.pdfIn PDF document text
  • https://terlickodds.cz/www/www/fckphotos/file/xopos.pdfIn PDF document text
  • http://scsychem.com/upload/files/50529956931.pdfIn PDF document text
  • http://mobilenmr.com/files/files/58225531994.pdfIn PDF document text
  • http://amandatour.ru/js/ckfinder/userfiles/files/48747435086.pdfIn PDF document text
  • https://varida-tech.com/ckfinder/userfiles/files/gironamigif.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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