Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://ketchas.ru/uplcv?utm_term=ejercicios+resueltos+operaciones+con+polinomios+pdf PDF link annotation

  • http://soft-pro.hr/upload/datoteke/51655350805.pdfIn PDF document text
  • https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca922b4388---tiwosisev.pdfIn PDF document text
  • http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b7c6f05dba6---42629044120.pdfIn PDF document text
  • http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ac371fc4ec1---85629671524.pdfIn PDF document text
  • https://esteticarcare.com/wp-content/plugins/super-forms/uploads/php/files/2af98796af333af4f1fc25bb6d571911/sanazem.pdfIn PDF document text
  • http://designklasse.de/ckfinder/userfiles/files/belagul.pdfIn PDF document text
  • https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1608780b825eca---pusuwos.pdfIn PDF document text
  • http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a6a096782d7---xuxazeni.pdfIn PDF document text
  • http://architettoletiziamasciotta.eu/userfiles/files/9008250199.pdfIn PDF document text
  • http://tkhomedeco.com/assets/uploads/ckedit/files/20210620204654.pdfIn PDF document text
  • http://entryexpress.online/chapter_images/files/kifelose.pdfIn PDF document text
  • https://sindonis.com/userfiles/file/74794114501.pdfIn PDF document text
  • https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e483c8ca2f7---masulivezifizopepuwedax.pdfIn PDF document text
  • http://www.mearesandassociatesllc.com/siteuploads/editorimg/file/76120052328.pdfIn PDF document text
  • https://www.movingwithmagna.com/wp-content/plugins/super-forms/uploads/php/files/e5e916b7248624d137795cd7ff8fbaf9/zusizutowufijivevu.pdfIn PDF document text
  • http://wib24-admin.de/uploads/file/94320459097.pdfIn PDF document text
  • http://anhuicrew.com/upload_fck/file/2021-6-15/20210615164401674653.pdfIn PDF document text
  • http://kaupa.cz/userfiles/file/1740921514.pdfIn PDF document text
  • http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc67848df2---14294516579.pdfIn PDF document text
  • http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c7c24d60e7d---gozikerusogutikebi.pdfIn PDF document text
  • http://sity-luxe.ru/userfiles/file/31711695036.pdfIn PDF document text
  • http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607777460f5f5---3250759577.pdfIn PDF document text
  • https://delphin-bau.com/ckfinder/upload/files/xutem.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c105ebb3162---tipuxevixukidi.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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