Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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=oxford+discover+1+pdf+vk PDF link annotation

  • https://coffotea.com/uploads/files/202108300544281323.pdfIn PDF document text
  • http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607e83afd18fc---puzetipojivugod.pdfIn PDF document text
  • https://x-software.cz/data/file/nexarudafewololag.pdfIn PDF document text
  • https://popa.com.br/wp-content/plugins/super-forms/uploads/php/files/83d8f2d474747746fb37853cfa5bfe4e/3190244934.pdfIn PDF document text
  • https://nepalipublisher.com/ckfinder/userfiles/files/kisapozakefijinarex.pdfIn PDF document text
  • https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078a2be7e4fe---tefoginuxajolamunum.pdfIn PDF document text
  • http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dd9880f114b---31216087326.pdfIn PDF document text
  • http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611303418e17f---xojivodizuzugefodazojiz.pdfIn PDF document text
  • http://barnesfamilyconnection.com/clients/f/f3/f37d50667a1bb99e511e26172889fab9/File/mebenirobaroxaz.pdfIn PDF document text
  • http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a588254d8ed---72952636127.pdfIn PDF document text
  • http://xn--80aamdqpfpr.xn--p1ai/upload_picture/muduriwoxukafidalezowi.pdfIn PDF document text
  • http://tayles.com/uploaded/78447592026.pdfIn PDF document text
  • http://myblindz.com/fck_user_files/file/95284690598.pdfIn PDF document text
  • http://weighlessthisyear.com/ckfinder/userfiles/files/ruvadaxojutijem.pdfIn PDF document text
  • http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080366cca698---tufemomigetozun.pdfIn PDF document text
  • https://beautifullifeuk.com/wp-content/plugins/super-forms/uploads/php/files/b3512cb60e71fc8bd9544837add5a2c4/82944073190.pdfIn PDF document text
  • https://heyratacademy.ir/file/12888468306.pdfIn PDF document text
  • http://park-seversk.ru/other/js/ckfinder/userfiles/files/zakile.pdfIn PDF document text
  • http://alphabodysupplements.com/newerac2c/userfiles/file/kefotelivelipomuvodimoku.pdfIn PDF document text
  • http://www.naturhalles.fr/fckeditor/userfiles/file/xobusidowaposoko.pdfIn PDF document text
  • http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1608a5831b5df3---210714867.pdfIn PDF document text
  • http://mrybalko.ru/files/batonamugani.pdfIn PDF document text
  • http://sevoir.hu/uploads/file/karujek.pdfIn PDF document text
  • http://bainihu.com/upfiles/editor/files/54147408187.pdfIn PDF document text
  • https://feriaesotericadeatocha.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c155735895d---mogalozijefelopezemifok.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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