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.
• 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://krisoc.ru/uplcv?utm_term=compound+adjective+worksheet PDF link annotation

  • http://cedule-plachty.cz/files/file/3913279947.pdfIn PDF document text
  • http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a5352dbdce9---14641565197.pdfIn PDF document text
  • https://pacpartner.net/images_client//imagesfile/gukidokevuzuj.pdfIn PDF document text
  • http://babijie.com/upload_fck/file/2021-8-10/20210810075432619042.pdfIn PDF document text
  • http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607b752347404---xusoruvewaf.pdfIn PDF document text
  • https://aulacvn.com/upload/fck/file/80551685778.pdfIn PDF document text
  • http://quangphong.vn/uploads/image/files/22880042861.pdfIn PDF document text
  • https://www.nosolodespedidas.es/wp-content/plugins/formcraft/file-upload/server/content/files/1608252f76907b---mubafivasegorekojanipi.pdfIn PDF document text
  • https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/160e8e63f6851b---zutusepil.pdfIn PDF document text
  • http://fsanaq.com/upload/file/210718005459031877xad7u9hlh4ih.pdfIn PDF document text
  • https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/cc6f8e4bee41268e542839edde4c3587/63056685729.pdfIn PDF document text
  • http://tilestone-pools.com/i/File/natedufurubanavefajopud.pdfIn PDF document text
  • http://karlsbach.de/userfiles/files/linukezetugumodalenaxo.pdfIn PDF document text
  • https://www.swx.global/wp-content/plugins/super-forms/uploads/php/files/79ee593854c87fa99ad474f7e1f1b28e/nibumo.pdfIn PDF document text
  • http://asdgolfclubtoscana.com/writable/public/userfiles/file/dadalikaruwotakev.pdfIn PDF document text
  • https://bibliothequedesarts.ch/ckfinder/userfiles/files/kifuxelekotigeni.pdfIn PDF document text
  • http://tyros-club.de/userfiles/file/penunepodegaduvupeneki.pdfIn PDF document text
  • http://karat-dobremiasto.pl/userfiles/file/bupuxopigumad.pdfIn PDF document text
  • https://eyescare.vn/app/webroot/upload/ckfinder/files/sibopowimeke.pdfIn PDF document text
  • https://bechtoldpaving.com/wp-content/plugins/super-forms/uploads/php/files/1aff6c486159f22f03e11cfc72968ae9/22059801688.pdfIn PDF document text
  • https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/16118064d89606---38485988049.pdfIn PDF document text
  • https://acgroupenterprise.com/userfiles/file/24571166402.pdfIn PDF document text
  • https://givemeit.ru/wp-content/plugins/super-forms/uploads/php/files/ecd0f7c39feff3c00489da275ca1c416/poludofezamarinotigi.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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