Malicious PDF — malware analysis report

Heuristics 7

• 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 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://coretry.ru/uplcv?utm_term=android+app+software PDF link annotation

  • http://knx-shop.ru/admin/ckfinder/userfiles/files/taxarefe.pdfIn PDF document text
  • https://bluetact.com/locktactyuma/userfiles/file/31195268708.pdfIn PDF document text
  • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/c63809e298b72cf49f7140bfd77d6183/55976090045.pdfIn PDF document text
  • https://alatheir.com/atheirwsfiles/file/66622069033.pdfIn PDF document text
  • http://szjg.hu/images/file/gedezitinapefexulaton.pdfIn PDF document text
  • http://www.pro9apps.com/app/webroot/files/uploadimagesfile/pepadugif.pdfIn PDF document text
  • http://utuin.net/files/fckeditor/file/42987699755.pdfIn PDF document text
  • http://security-m.jp/tool/images/file/pavuxewapamokibovuz.pdfIn PDF document text
  • https://hydratrend.com/application/third_party/ckfinder/userfiles/files/gunolidatewuralebu.pdfIn PDF document text
  • http://evergreendentistryva.com/app/webroot/js/ckfinder/userfiles/files/74781029409.pdfIn PDF document text
  • http://bidwoodmachine.com/d/files/ripiwotudabefigigogada.pdfIn PDF document text
  • http://bright-mineral.com/uploadfile/file/2021090600332635.pdfIn PDF document text
  • http://fundacionecla.org/resources/original/file/xerokiratubafutanet.pdfIn PDF document text
  • https://www.focus.mu/wp-content/plugins/super-forms/uploads/php/files/74db4b111c435ce695e3983367b0bd9f/3456167765.pdfIn PDF document text
  • https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a0747dfb0d---19612839191.pdfIn PDF document text
  • https://truongthanhco.vn/webroot/img/files/10678749169.pdfIn PDF document text
  • https://www.lsv-wittlage.de/ckfinder/userfiles/files/buxolobonaki.pdfIn PDF document text
  • http://recamonde.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1612ffbbf6a497---gawiketilotunawid.pdfIn PDF document text
  • http://maxidmum.com/images/upload/fck/file/dadanedujatenuvazam.pdfIn PDF document text
  • http://childconnect.com/swi/fckfiles/file/62688937278.pdfIn PDF document text
  • https://norservis.com/files/files/fumogatunusetadasidowofux.pdfIn PDF document text
  • http://chenruichem.com/upload/files/levamefapinefemipo.pdfIn PDF document text
  • http://remont-elektro.eu/archiv/file/nuripokalud.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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