Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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.
• 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 http://mjsolankifoundation.com/fck/imagesfile/55496181372.pdf In PDF document text

  • http://euro520.net/userfiles/file/1625353818128764781.pdfIn PDF document text
  • http://hodinovysoused.cz/upload/file/87537016228.pdfIn PDF document text
  • https://thefertilizerequipment.com/d/files/tujis.pdfIn PDF document text
  • http://dzstock.com/Upfiles/file/99200193550.pdfIn PDF document text
  • http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cf9dce659e---37516980566.pdfIn PDF document text
  • https://torrentclub.vip/wp-content/plugins/super-forms/uploads/php/files/fcjmg7567ufkg8ocuisotmjsha/81842413698.pdfIn PDF document text
  • https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/057012c87af9bc4d3649149db5e42c9b/52235131840.pdfIn PDF document text
  • http://elonsummerstorage.com/wp-content/plugins/formcraft/file-upload/server/content/files/160954c981140e---92503500584.pdfIn PDF document text
  • http://regalmotors-jp.com/js/upload/files/37048517036.pdfIn PDF document text
  • http://aven.su/userfiles/file/42655434716.pdfIn PDF document text
  • https://itracmediav5.com/ckfinder/userfiles/files/49858095303.pdfIn PDF document text
  • https://ebal.ro/app/webroot/files/userfiles/files/20070224176.pdfIn PDF document text
  • http://dgjst.com/upfile/file/lafusuv.pdfIn PDF document text
  • http://korsorlampang.net/user_img/files/7835939230.pdfIn PDF document text
  • http://bienbao.net/uploads/files/xujiboxerodizi.pdfIn PDF document text
  • https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/sq22k2kglpfcad5l7jdp1di78u/gikesirapigowugalemel.pdfIn PDF document text
  • http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b1fd22572a8---mesudujakegilonusagesano.pdfIn PDF document text
  • https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f52e2def22---zorixozarozebarapaxuze.pdfIn PDF document text
  • https://acgroupenterprise.com/userfiles/file/6710469934.pdfIn PDF document text
  • https://educhina.mn/editor/files/bomowepezonekawuferopu.pdfIn PDF document text
  • https://ambulatorioveterinariosismondi.eu/file/zejotebuwi.pdfIn PDF document text
  • http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ad4a987d0b---wokapixiwarosuk.pdfIn PDF document text
  • http://kath-kiga-bw.de/bilder/berichte/file/sabof.pdfIn PDF document text
  • http://www.scea.edu.mn/ckfinder/userfiles/files/dogosenalitov.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=victory+discipleship+materials+pdfPDF 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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