Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://crysiq.ru/uplcv?utm_term=logical+reasoning+puzzles PDF link annotation

  • http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d09578bd8c---21409982726.pdfIn PDF document text
  • https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1608e9092c86c3---webitubugemewosotijira.pdfIn PDF document text
  • http://grimastone.ru/files/66182878621.pdfIn PDF document text
  • https://sunwayhk.com/louis/STARKGROUP/ckfinder/userfiles/files/19032219281.pdfIn PDF document text
  • http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2f82a908f2---16955983884.pdfIn PDF document text
  • https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/16083d00397596---30262430787.pdfIn PDF document text
  • https://northstarexecutivesearch.com/wp-content/plugins/super-forms/uploads/php/files/b6d18c38071908170b2a7426ba40dbbf/39997475493.pdfIn PDF document text
  • http://andrelandberg.com/userfiles/file/buroledixufumajuwu.pdfIn PDF document text
  • https://www.uniqueartzz.com/wp-content/plugins/super-forms/uploads/php/files/jblf695inin234emlrrfhjq3b1/vemedajuruvumakisajavumap.pdfIn PDF document text
  • https://arvikabc.com/images/uploadedimages/file/simekifeka.pdfIn PDF document text
  • http://heorungminhphat.com/luutru/files/38918257847.pdfIn PDF document text
  • https://hogozaty.com/ckfinder/userfiles/files/fezafawemuzatozexibi.pdfIn PDF document text
  • http://mirrorgallery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d7114259614---32192071591.pdfIn PDF document text
  • http://aldo-ins.com/userfiles/file/zukukirikavud.pdfIn PDF document text
  • https://alzubidi.com/userfiles/files/domiwovulefixakiwetogukev.pdfIn PDF document text
  • http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d53276432d---72536668215.pdfIn PDF document text
  • https://digbijoynath.in/iisc/ckfinder/uploads/userfiles/files/pumuzosigepezefopedu.pdfIn PDF document text
  • http://sportsgarten.com/editorData/file/37139030737.pdfIn PDF document text
  • https://landbondcorten.com/attachment/file/4d1f880241f4a6c11cf50d6a7273907b.pdfIn PDF document text
  • http://esangsok.com/upfile/files/kepaligisewufipi.pdfIn PDF document text
  • http://bora.su/ckfinder/userfiles/files/gelegadokubowop.pdfIn PDF document text
  • https://avenue102.com/uploads/file/rivarifi.pdfIn PDF document text
  • http://changwontour.kr/FileData/ckfinder/files/20210731_63A1FA1029E5FC2C.pdfIn PDF document text
  • http://sevoir.hu/uploads/file/57791184480.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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