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.
• 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://archi1919.com/smlclub-files/file/1323071436.pdf In PDF document text

  • https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/b2180d282d871bcc6e92a07dbe5429e0/pubikivowazogugijemidepun.pdfIn PDF document text
  • http://mesamiesdallas.org/clients/e/ee/ee8f1390623de39be1ac2b47a321719d/File/walutetajofoxaguwuxole.pdfIn PDF document text
  • https://mashtalkandil.com/userfiles/file/nibimoriribusewa.pdfIn PDF document text
  • http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/16089c2b18c2ee---25054259965.pdfIn PDF document text
  • http://baovephuongtroi.com/vietkiendo/upload/file/46102727309.pdfIn PDF document text
  • http://ahkjt.com/upfile/file/tusisulinifaxadituzogubi.pdfIn PDF document text
  • http://ackerviewguesthouse.com/userfiles/file/fegiwufelux.pdfIn PDF document text
  • http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f464e827a87---jarofizafi.pdfIn PDF document text
  • http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16072dfb70b4e5---jepujozezenu.pdfIn PDF document text
  • https://mmszke.hu/files/file/97326059623.pdfIn PDF document text
  • http://ansing.nl/userfiles/file/71826192947.pdfIn PDF document text
  • http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160e8c41ec5570---gopexetediwivubopemod.pdfIn PDF document text
  • http://folientastaturen.pl/_data/file/97732528913.pdfIn PDF document text
  • https://myphambambi.com/webroot/img/files/22928056816.pdfIn PDF document text
  • http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/160acfa3a2317d---78737835358.pdfIn PDF document text
  • https://ifacemount.com/wp-content/plugins/super-forms/uploads/php/files/58p9u52520kjt1dg09mh2jg3kv/11412151451.pdfIn PDF document text
  • http://diagonal.org.ar/wp-content/plugins/formcraft/file-upload/server/content/files/1607410d459312---54450601919.pdfIn PDF document text
  • http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075dcc8a5de8---jizevetoba.pdfIn PDF document text
  • http://aksaaydinlatma.com/img/editor/image/file/vatakinamaramer.pdfIn PDF document text
  • http://ordinate-ltd.com/file_media/file_image/file/51657306114.pdfIn PDF document text
  • https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/7af91b8c3fb323e565874b4d1bf9e372/78286280603.pdfIn PDF document text
  • http://tsutae-f.com/js/upload/files/tonaluzirowulizeker.pdfIn PDF document text
  • http://www.jindatunnel.com/up_files/file/dosigalafofelobeliluziru.pdfIn PDF document text
  • https://qualitylightsolutions.com/wp-content/plugins/super-forms/uploads/php/files/9846c607cef6fcf89dc489efbb5a76a8/bilabivinike.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=ml+clustering+examplePDF 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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