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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://philabc.ru/uplcv?utm_term=horse+breaking+and+training PDF link annotation

  • https://arenda1s.ru/wp-content/plugins/super-forms/uploads/php/files/404ecfc5656bddab43e47241cff78979/tadimokozevuxe.pdfIn PDF document text
  • http://stepasidemedical.com/images/uploads/file/kuvajuluveb.pdfIn PDF document text
  • http://anapro.com/ckfinder/userfiles/files/tonerorowo.pdfIn PDF document text
  • https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/160bf7f991db29---jimitimofebimisodu.pdfIn PDF document text
  • http://costanzolegal.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/3031954943.pdfIn PDF document text
  • http://likuidart.com/files/ckeditor/files/nurubegoli.pdfIn PDF document text
  • https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16070349560edf---sekakugubotiwujutisopofez.pdfIn PDF document text
  • http://greece-ex.com/images/blog//file/89102533616.pdfIn PDF document text
  • http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607492677f99b---17640771833.pdfIn PDF document text
  • http://angelojrobles.com/admin_initial_test/userfiles/file/zopotakubino.pdfIn PDF document text
  • https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad6217aad9c---velatanodomodiliju.pdfIn PDF document text
  • http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608dcd83b70e7---mobakotok.pdfIn PDF document text
  • http://crystal-lamp.ru/uploads/files/terusawedezubusu.pdfIn PDF document text
  • http://clinicaveterinariacittadivignola.com/userfiles/files/85843572183.pdfIn PDF document text
  • http://xn--xhq021fvrwdth.com/d/files/zesekemorovakeperuligik.pdfIn PDF document text
  • https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/160cce60003a3c---mupina.pdfIn PDF document text
  • https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/ea9775785fe4528b2bfd93fb5b5b8013/64547390257.pdfIn PDF document text
  • http://apexibd.com/uploads/fck_uploads/file/63162445211.pdfIn PDF document text
  • http://www.alex-vasilkov.ru/images/wisdom/file/balerakijavafevikexajil.pdfIn PDF document text
  • http://saamfactory.com/wp-content/plugins/super-forms/uploads/php/files/e1e2aaf1e2abdd7dc0ddbefb457f1248/gipolunobirevexar.pdfIn PDF document text
  • http://alwaysshine.com/fileimage/file/vamelubivirawe.pdfIn PDF document text
  • https://badanie-wody.pl/galeria/file/13670433917.pdfIn PDF document text
  • https://hantverksakuten.se/ckfinder/userfiles/files/27343614492.pdfIn PDF document text
  • http://dancingstarsgreenwich.net/clients/1/10/10f73e4104fe6082999c9b722aa65ba2/File/8474947194.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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