Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://infrive.ru/uplcv?utm_term=birey+c+matematik+soru+bankasi+%C3%A7%C3%B6z%C3%BCmleri PDF link annotation

  • http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b76a1cca5a---votobimugiko.pdfIn PDF document text
  • https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/8b365a66c6106aaa57855801a0d6a98c/5448838579.pdfIn PDF document text
  • https://www.bakkersvlaanderen.be/resources/plugins/ckfinder/userfiles/0/files/fumijewubomopavevelipoli.pdfIn PDF document text
  • http://instandee.com/Images_upload/files/tegub.pdfIn PDF document text
  • http://auto-spec.ca/fck/file/kapijiji.pdfIn PDF document text
  • https://www.albriug.com/static/editor/ckeditor/ckfinder/upfile/files/nideba.pdfIn PDF document text
  • https://aduanaldelvalle.com/userfiles/file/nibatapatori.pdfIn PDF document text
  • https://artasedanasingaraja.com/uploadfck/file/89285251944.pdfIn PDF document text
  • http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8c9b1c2ed9---39172219683.pdfIn PDF document text
  • https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/mc8136b9pijnfk2a5oshrgdcre/puvasokumonez.pdfIn PDF document text
  • http://sapaelitehotel.com/webroot/img/files/lafiwupaboravesalogen.pdfIn PDF document text
  • https://totounited.com/contents//files/23559639866.pdfIn PDF document text
  • https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16094dee292d6e---80916812539.pdfIn PDF document text
  • https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/160803f77077ce---pivokafepuguwubip.pdfIn PDF document text
  • http://planet-for-events.de/userfiles/file/81566461679.pdfIn PDF document text
  • http://rolmech-strzelno.pl/Upload/file/zogamuzawalepoku.pdfIn PDF document text
  • https://machinex-machines.com/UserFiles/File/46528537340.pdfIn PDF document text
  • http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160800fd38fdae---tefanivag.pdfIn PDF document text
  • http://railwaysrailroads.com/upload_files/files/1822792460.pdfIn PDF document text
  • http://librojuridico.com/aym_images/files/39006519785.pdfIn PDF document text
  • https://quickonboarding.com/wp-content/plugins/super-forms/uploads/php/files/0259c3813311f469bee8c34ff6698638/62600976227.pdfIn PDF document text
  • http://fqcycpa.com/jingkelun/userfiles/files/20210803044207.pdfIn PDF document text
  • https://hizlipin.com/calisma2/files/uploads/fivoxusibikelukapotatabed.pdfIn PDF document text
  • https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/7da52201b9060233de46ab434884a56a/64670790713.pdfIn PDF document text
  • http://madmojo.com/fckupload/file/gumuf.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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