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://crewmak.ru/uplcv?utm_term=lesen+%C3%BCbungen+a2+pdf PDF link annotation

  • https://migger.dk/userimages/file/nibenuliti.pdfIn PDF document text
  • http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072648b5169d---vinatesomo.pdfIn PDF document text
  • http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/16071c22f968ed---35904251324.pdfIn PDF document text
  • http://toanlinh.vn/upload/files/13525942687.pdfIn PDF document text
  • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/64285af68548ed6e56d4021776c64615/59889356679.pdfIn PDF document text
  • http://tfh-filter.hu/_user/file/wulazozut.pdfIn PDF document text
  • http://cuacuonnhaxuongbinhduong.com/upload/files/24814178441.pdfIn PDF document text
  • http://mesamiesdallas.org/clients/e/ee/ee8f1390623de39be1ac2b47a321719d/File/fexogof.pdfIn PDF document text
  • http://aplus.to/userfiles/file/94619944506.pdfIn PDF document text
  • http://dui-antidote.com/images/userfiles/file/27731364119.pdfIn PDF document text
  • http://tate79.com/clients/868750/File/muxegowe.pdfIn PDF document text
  • http://fructusartis.com/i/File/73068034423.pdfIn PDF document text
  • https://asztromiskolc.hu/ckfinder/userfiles/files/57822122745.pdfIn PDF document text
  • http://smitheaster.org/clients/861344/File/laduwi.pdfIn PDF document text
  • https://airflow-skateboards.com/userfiles/files/65773102015.pdfIn PDF document text
  • http://solarexperten.ch/fckeditor/editor/images/file/vikiradipojujetojuma.pdfIn PDF document text
  • http://epoch-making.jp/js/upload/files/17802480456.pdfIn PDF document text
  • https://hainutedecopii.eu/ckfinder/userfiles/files/kaxajotokijakijudeva.pdfIn PDF document text
  • https://dnmpaint.com/sdcc/images/file/86993814665.pdfIn PDF document text
  • https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1609e1e04e0f7d---44740230876.pdfIn PDF document text
  • https://baohohoanglong.com/userfiles/file/vevilisizokesuvib.pdfIn PDF document text
  • http://profisystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1606f18ba2bde3---peritipazolojupukadowunom.pdfIn PDF document text
  • https://southtours.com/wp-content/plugins/super-forms/uploads/php/files/p7ilhf1mtspp66ijucm7i62jkk/69792590873.pdfIn PDF document text
  • https://dagvandearchitectuur.be/_files/file/75372055459.pdfIn PDF document text
  • http://qunjl.com/userfiles/files/1926037366.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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