Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://crysiq.ru/uplcv?utm_term=yanmar+3+cylinder+diesel+engine+manual PDF link annotation

  • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/60fa70937158ab216763ccbad54aeac0/15164809717.pdfIn PDF document text
  • http://entrackintl.com/uploads/fapavovekeb.pdfIn PDF document text
  • https://mertlakustika.cz/images/pages/file/nabilazomakiludowaluviba.pdfIn PDF document text
  • http://dilimkebab.com/userfiles/file/nuguraguxojupezez.pdfIn PDF document text
  • https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/25a63b807c0a2c497a604c7fb09cbe07/momufikevozefaja.pdfIn PDF document text
  • https://xn----9sbccjdbca7cyaieg1a3j.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/f65083d538979a72bb88993377a5fd89/fevadesibewomil.pdfIn PDF document text
  • http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16104ad2345484---5014944918.pdfIn PDF document text
  • https://tumujerrusa.com/userfiles/wasadipoj.pdfIn PDF document text
  • http://harc-ias.vn/Images_upload/files/80377293317.pdfIn PDF document text
  • https://grupo.iberia.es/js/ckfinder/userfiles/files/25672327530.pdfIn PDF document text
  • https://koffiewarenhuis.nl/app/webroot/files/userfiles/files/tofitekejopuw.pdfIn PDF document text
  • http://www.suffaheducation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bcc0eb3b1fa---96674213912.pdfIn PDF document text
  • https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160984ba3a8f71---vudaxekofafib.pdfIn PDF document text
  • http://bukhatirhomes.com/userfiles/file/95627847142.pdfIn PDF document text
  • https://3eyamaichi.com/upload/ckfinder_temp/files/20210830125208.pdfIn PDF document text
  • http://anoh.net/pds/userfiles/files/4257473741.pdfIn PDF document text
  • http://ruishikaishi.com/upload/content/files/2021/08/20210814065330.pdfIn PDF document text
  • http://criminisiepartners.it/userfiles/files/32948073921.pdfIn PDF document text
  • http://print-printonline.com/ckfinder/userfiles/files/jabikigurilexokexogav.pdfIn PDF document text
  • http://pereplanirovkaoblast.ru/pict/file/pilixejiwogi.pdfIn PDF document text
  • https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/vbcuev6t6q4iaucaoejtd7gcv3/57809974690.pdfIn PDF document text
  • https://steklo-shik.ru/userfiles/file/xugazelutanitok.pdfIn PDF document text
  • http://drapikowski.pl/uploaded/fck_files/file/galunabepojewigagan.pdfIn PDF document text
  • https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/0ba4de7cab49fe6a02dc2c2f9ade33cd/berepavejojegoki.pdfIn PDF document text
  • https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/160b095fe67f68---14204984847.pdfIn PDF document text
  • http://factory-01.com/js/upload/files/16115784672.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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