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 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.
• 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://tumujerrusa.com/userfiles/rukuwotowetar.pdf In PDF document text

  • https://varbackaforskola.se/ckfinder/userfiles/files/fejopusulefojunemoxeji.pdfIn PDF document text
  • http://ozdesignhouse.com/app/webroot/uploads/files/5980069196.pdfIn PDF document text
  • http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612eb2cd51623---85309284411.pdfIn PDF document text
  • https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/bb998d38cb8e9db916cd4b97eeffd3c3/92627312600.pdfIn PDF document text
  • http://showdoimovel.com/files/files/taloganorinavirujopa.pdfIn PDF document text
  • http://pnktools-th.org/ckfinder/userfiles/files/40785148754.pdfIn PDF document text
  • http://pokwuttibut.com/file_media/file_image/file/jamotetizane.pdfIn PDF document text
  • https://stthomasorthodoxchurchsouthpampady.com/userfiles/file/19279501948.pdfIn PDF document text
  • http://mimarathi.live/assets/ckfinder/core/connector/php/uploads/files/83654181620.pdfIn PDF document text
  • http://jgbt.us/pds/userfiles/files/medoxafesijade.pdfIn PDF document text
  • http://nhakhoasaigonkimcuong.com/uploads/images/files/15368841406.pdfIn PDF document text
  • http://obasekiestates.com/UserFiles/file/70280420849.pdfIn PDF document text
  • https://bakwanudang.com/contents/files/suwutuvu.pdfIn PDF document text
  • https://gloriamus.org/Uploads/userfiles/files/96919750042.pdfIn PDF document text
  • http://epmresearch.org/userfiles/files/35835759556.pdfIn PDF document text
  • http://ntouioc.ntou.edu.tw/ckfinder/userfiles/files/rikelexilovabesomavegej.pdfIn PDF document text
  • https://sharidendesignasphalt.com/wp-content/plugins/super-forms/uploads/php/files/7bcd6b95bdad235b9d9bb96980489b32/ruxoxagilapidow.pdfIn PDF document text
  • https://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/9c2a94b7c84839626c94c432120946c5/terenirutikuvuguxajareteb.pdfIn PDF document text
  • https://duvanco.be/docs/files/zijibofenazoxixesojelufu.pdfIn PDF document text
  • https://titishop.co/upload/files/vebikelomome.pdfIn PDF document text
  • http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/161328f71de159---96345906669.pdfIn PDF document text
  • http://sensor4you.com/fckeditor/editor/filemanager/connectors/php/fckeditor/upload/202109/file/sizavixag.pdfIn PDF document text
  • http://ventensis.lt/public/ckfinder/userfiles/files/41083461543.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=snack+video+save+video+downloadPDF link annotation
  • 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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