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=relative+pronouns+worksheet+grade+5+pdf PDF link annotation

  • https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160c12c9ad2029---29001784532.pdfIn PDF document text
  • https://enville.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b760704f90a---97098123122.pdfIn PDF document text
  • http://computerdoki.hu/user/file/ziwutilowibuf.pdfIn PDF document text
  • http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160fc92d13f7b9---22257078146.pdfIn PDF document text
  • https://www.actionconstructionjax.com/wp-content/plugins/super-forms/uploads/php/files/8816a48fa3c5940fed379e678ba9c076/36979455671.pdfIn PDF document text
  • http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160863e2801c2c---64171000894.pdfIn PDF document text
  • http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fee45e0b28---12819307128.pdfIn PDF document text
  • https://marblobath.com/app/webroot/img/files/76247901181.pdfIn PDF document text
  • http://tomei4x4.jp/js/upload/files/velefelejifaxi.pdfIn PDF document text
  • http://dansecyr.ca/pdf/file/logavasanewodukedox.pdfIn PDF document text
  • http://www.peopleoftheheath.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089ab75b44c3---vekitaredorebekalolokav.pdfIn PDF document text
  • http://www.tokyomagic.jp/images/library/File/rosexugerixo.pdfIn PDF document text
  • http://sahamit.net/userfiles/file/difiluxivadakabawi.pdfIn PDF document text
  • http://baheth24aqari.com/ckfinder/userfiles/files/xetulorezezekijojus.pdfIn PDF document text
  • https://cambodiadriverservice.com/userfiles/file/78049958932.pdfIn PDF document text
  • http://eortak.com/img/fck_temp/file/70225298726.pdfIn PDF document text
  • http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/160789be48a8f3---81210389098.pdfIn PDF document text
  • https://www.treehousecare.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606f619005038---38820752157.pdfIn PDF document text
  • https://giridhareye.org/ckfinder/userfiles/files/susazonowuku.pdfIn PDF document text
  • https://cedarcreeksauce.com/wp-content/plugins/super-forms/uploads/php/files/46bb12ff754d46f5957940166fe42380/samujor.pdfIn PDF document text
  • http://datavincity.com/uploads/ckfinder/files/fuwepiditelexopivoturipok.pdfIn PDF document text
  • https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/e38a5d5c46029a628b7bd0d6b5437e91/kalamove.pdfIn PDF document text
  • http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160849c9a51d0f---tiwewetisakixododudugod.pdfIn PDF document text
  • https://ontime-taxi.kg/wp-content/plugins/super-forms/uploads/php/files/6f943d75f9d223266ba599a4bd42ced8/bajeworosutimedeluvikag.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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