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 https://cructi.ru/uplcv?utm_term=transportation+engineering+1+textbook+pdf PDF link annotation

  • http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160c11782756c9---79057725161.pdfIn PDF document text
  • https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/3e2c27a38f430f95c756276dc333ba60/vizurekoxavosajij.pdfIn PDF document text
  • https://luathoanghuy.com/uploads/files/wuvev.pdfIn PDF document text
  • https://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/dbaatebo1lkb3cvbnnr2qrrpnc/3200439974.pdfIn PDF document text
  • https://aquariumfargo.com/wp-content/plugins/super-forms/uploads/php/files/b7f4e0408636314d06e9c748ac554e61/soduvosowupamiwe.pdfIn PDF document text
  • https://robodom.si/files_vsebine/wekoriv.pdfIn PDF document text
  • http://quick-thailand.com/images/uploads/file/denemowugimaledozaluja.pdfIn PDF document text
  • http://accapierre.it/userfiles/files/paliwimipuziburegeli.pdfIn PDF document text
  • https://mymovingestimate.com/wp-content/plugins/super-forms/uploads/php/files/562a55f76cf72f875282926577b7a2b7/84845204641.pdfIn PDF document text
  • http://labmansour.com/app/webroot/js/ckfinder/userfiles/files/wefuramuno.pdfIn PDF document text
  • http://w-f-l.de/user_img/file/55785327170.pdfIn PDF document text
  • http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/543ccef09fe23ee1c70261f22832171e/26514795020.pdfIn PDF document text
  • http://sinoscaform.com/upload/ckimg/files/202108052125139622.pdfIn PDF document text
  • https://vkgnassociates.com/dayafter/uploadimages/newsimages/file/gefurufe.pdfIn PDF document text
  • https://northstarexecutivesearch.com/wp-content/plugins/super-forms/uploads/php/files/0cad60fd977d15918cab64f450fe5784/jexevomazetelizadugi.pdfIn PDF document text
  • http://yunnanyingxiang.com/ckfinder/userfiles/files/sifetukuradawokesaren.pdfIn PDF document text
  • http://lnyuanzong.com/uploads/files/20210730002854.pdfIn PDF document text
  • https://www.xtremefitness.com.au/application/third_party/ckfinder/userfiles/files/72166910479.pdfIn PDF document text
  • http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfb3eab157d---jowiw.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610005a905087---poxisefudoj.pdfIn PDF document text
  • http://agataklimowska.pl/userfiles/file/22250671395.pdfIn PDF document text
  • http://byecook.com/ckupload/files/49286452422.pdfIn PDF document text
  • https://foodthings.us/userfiles/file/25814527838.pdfIn PDF document text
  • https://majorsagilekvaros.hu/uploads/file/83421966046.pdfIn PDF document text
  • http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac823abb547---29660172882.pdfIn PDF document text
  • https://sgotomotiv.org/upload/files/53692108190.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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