Malicious PDF — malware analysis report

Heuristics 6

• 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 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 http://www.grupohk.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607f21d31536a---48909082353.pdf In PDF document text

  • http://shs1977reunion.com/clients/41590/File/nakekenawonaw.pdfIn PDF document text
  • http://csc028.com/userfiles/file/20210612012516_hbexzt.pdfIn PDF document text
  • https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cb36520be58---xegitaxuzofepezivafegopi.pdfIn PDF document text
  • https://balajihighfields.in/userfiles/file/35810817358.pdfIn PDF document text
  • https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/7d03896ee363d63e41d1a52d88a97b91/suxenubaviwubejusenugomi.pdfIn PDF document text
  • https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/7844a7091299c8fff0f0af198f50f513/90874884602.pdfIn PDF document text
  • https://angkortaxiservice.com/userfiles/file/68515489293.pdfIn PDF document text
  • http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/160b5c792b3225---28872392820.pdfIn PDF document text
  • http://csa.china-led.net/static/editor/ckeditor/ckfinder/upfile/files/ratofezaju.pdfIn PDF document text
  • https://reflexlighting.com/wp-content/plugins/super-forms/uploads/php/files/207e5dad96f32ce0e98aaabed0177edb/nowoberemegok.pdfIn PDF document text
  • http://bangkokmagnetwire.com/ecodev_test/image_system/files/40981409355.pdfIn PDF document text
  • http://learnersdigest.org/userfiles/file/44641775884.pdfIn PDF document text
  • http://stalmost.pl/userfiles/file/norikojoloru.pdfIn PDF document text
  • https://carstenrath.com/wp-content/plugins/super-forms/uploads/php/files/o53ier9fas9i5f64jt1of2jvbr/45082393407.pdfIn PDF document text
  • http://www.aunay-sous-auneau.fr/ckfinder/userfiles/files/58330431484.pdfIn PDF document text
  • https://evg-prague.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16094d97a4c9a2---58657203939.pdfIn PDF document text
  • http://feach.ie/images/uploads/file/repeber.pdfIn PDF document text
  • https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/963daf4a267ac320ca2e8abf41720712/22910064214.pdfIn PDF document text
  • https://aydin-elektrik.com/resimler/files/zelaji.pdfIn PDF document text
  • http://karat-dobremiasto.pl/userfiles/file/31398865578.pdfIn PDF document text
  • http://murito.fr/ckfinder/userfiles/files/83503304103.pdfIn PDF document text
  • https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/vdmc20hu8id3q4h2vgjktlo2ep/65445635308.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=formal+and+informal+letter+writing+in+englishPDF 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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