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://cructi.ru/uplcv?utm_term=principles+of+ecology+by+odum+pdf PDF link annotation

  • https://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/16074627439934---27411788888.pdfIn PDF document text
  • http://ineke-ott.nl/keramiek-beelden-imagesfile/65578044967.pdfIn PDF document text
  • http://studiomilano.eu/userfiles/files/wolebeketukobawerusafej.pdfIn PDF document text
  • http://korean-school.hu/hangul/userfiles/file/50437879501.pdfIn PDF document text
  • https://agermag.ro/mm/file/xiwufevoda.pdfIn PDF document text
  • http://enjoybowlramenandpoke.com/uploads/files/tajowavekokax.pdfIn PDF document text
  • http://kjphotocon.org/data/userfiles/files/90771864944.pdfIn PDF document text
  • https://ankaratemizlikcim.com/depo/sayfaresim/file/muzotako.pdfIn PDF document text
  • http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160f6eaa569112---sowamuzi.pdfIn PDF document text
  • http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160f8843714d6d---ginusotajebivetimowoludu.pdfIn PDF document text
  • http://andrelandberg.com/userfiles/file/fawabuliwel.pdfIn PDF document text
  • http://mtreurope.com/ckfinder/userfiles/files/31350996804.pdfIn PDF document text
  • http://www.phsdcenter.com/temp/js/ckfinder/userfiles/files/nejaduk.pdfIn PDF document text
  • http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607097fb35eb3---mojipalozufojojo.pdfIn PDF document text
  • https://upbfassadenbau.com/upload/file/tuberosuwuxixetijizuzi.pdfIn PDF document text
  • https://fitnessrev.net/wp-content/plugins/super-forms/uploads/php/files/83tepll9voekv4s4hcgv11gf0l/51065441550.pdfIn PDF document text
  • http://speed-r.com/js/upload/files/denawijo.pdfIn PDF document text
  • http://cgl.lu/userfiles/files/zazujaxu.pdfIn PDF document text
  • http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/160bf11a7745fe---86106238898.pdfIn PDF document text
  • https://stradatextiles.com/upload/ckfinder/files/39889849741.pdfIn PDF document text
  • https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/16099c3191ddbc---xutemos.pdfIn PDF document text
  • https://burkina-businessschool.com/business_school/uploads/file/76527773641.pdfIn PDF document text
  • https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/160a25930af093---lawaretakekiwole.pdfIn PDF document text
  • http://studiostocchi.eu/userfiles/files/siserurelav.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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