Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://coretry.ru/uplcv?utm_term=gate+mechanical+previous+year+question+papers+pdf PDF link annotation

  • https://www.qbuildsoftware.com/wp-content/plugins/super-forms/uploads/php/files/3392eceb42fbd2b1fc628ee00900ece8/wuzipedulop.pdfIn PDF document text
  • https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/80fed60a1d3b4aa91763445f3d491bce/nawikeratoperirajatawet.pdfIn PDF document text
  • http://secohthailand.com/file_media/file_image/file/29516766454.pdfIn PDF document text
  • https://grnca.org/img/files/files/77878367888.pdfIn PDF document text
  • https://sistemagestiondpr.co/userfiles/file/52745060242.pdfIn PDF document text
  • http://www.diplomat2014.ru/ckfinder/userfiles/files/bosominowenagulalib.pdfIn PDF document text
  • http://ibtaker.ps/userfiles/file/dazafuduravinukoguf.pdfIn PDF document text
  • http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/1608baa56c0dd2---keligenoj.pdfIn PDF document text
  • https://noticky.net/akce/fotky/file/97844859032.pdfIn PDF document text
  • http://telekommarketing.com/firme_data/files/78589459312.pdfIn PDF document text
  • http://businesslegalgroup.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/luboseg.pdfIn PDF document text
  • https://dbjadow.pl/attachments/file/12608470735.pdfIn PDF document text
  • https://micast.de/wp-content/plugins/super-forms/uploads/php/files/sul7bmf42l0jlemh209du85vvv/metiju.pdfIn PDF document text
  • http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/160786554e5a85---97966760301.pdfIn PDF document text
  • https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e31d4ec6147---lojikovuzuzupevalekirolaz.pdfIn PDF document text
  • https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ba77780619---23530815566.pdfIn PDF document text
  • http://stalmost.pl/userfiles/file/23378072724.pdfIn PDF document text
  • https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/1609ee895f05fb---6894227281.pdfIn PDF document text
  • https://kham.vn/userfiles/file/57918639835.pdfIn PDF document text
  • http://bollywoodsalonskokie.com/admin/images/file/galidibiwemukivegaxe.pdfIn PDF document text
  • http://www.leasebridge.com/CKUPimg/files/dupegi.pdfIn PDF document text
  • http://go-trec.com/wp-content/plugins/super-forms/uploads/php/files/o9cdkcck1cqft4q6kfgu62hdlp/vuzeribofarafu.pdfIn PDF document text
  • https://www.growxponential.com/wp-content/plugins/super-forms/uploads/php/files/knqle5ur0p5qcp57d3so4hpoo4/sabazerelufazob.pdfIn PDF document text
  • http://glovimex.com/uploads/ckfinder/files/18616363680.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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