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://chcial.ru/uplcv?utm_term=math+worksheets+for+4th+grade+division PDF link annotation

  • https://hagabb.ro/ckfinder/userfiles/files/34350703222.pdfIn PDF document text
  • https://tourpon.kr/FileData/ckfinder/files/20210616_21C053EBD546622E.pdfIn PDF document text
  • http://zaintik.org/files/galeria/files/63914639029.pdfIn PDF document text
  • http://wittlich-luexem.de/userfiles/file/66585358778.pdfIn PDF document text
  • http://cathyourhair.nl/js/ckfinder/userfiles/files/9722787473.pdfIn PDF document text
  • http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab39e689218---gesagarigavewe.pdfIn PDF document text
  • http://x04ydivan.ru/userfiles/file/22601796315.pdfIn PDF document text
  • http://curry-box-deluxe.de/userfiles/file/77455305557.pdfIn PDF document text
  • http://aiswaryamatrimonials.com/fck_uploads/file/71763744348.pdfIn PDF document text
  • https://vkgnassociates.com/dayafter/uploadimages/newsimages/file/9780386747.pdfIn PDF document text
  • http://projectbudapest.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1608b48020f208---sejilumugog.pdfIn PDF document text
  • http://ovecollection.com/royal/admin/images/products/file/vututugadafazi.pdfIn PDF document text
  • https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/ed4362ecf049de66f9b6d2c946127293/dodabubapebe.pdfIn PDF document text
  • https://www.properties-thassos.com/wp-content/plugins/super-forms/uploads/php/files/2jis92bkdcqcvil0h4ru4js61v/97011981293.pdfIn PDF document text
  • https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/b3c7e433e384e2e7b3902061731b8209/mokiwegilugomojipusazazim.pdfIn PDF document text
  • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/o679bfrk4r64po11slam830510/33554350901.pdfIn PDF document text
  • https://zenit-npk.ru/files/file/63425309644.pdfIn PDF document text
  • https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/9cc10c78000c5df8f01e7e36fe1122d3/93252493917.pdfIn PDF document text
  • https://badoza.net/userfiles/file/66142204839.pdfIn PDF document text
  • http://xatrbio.com/userfiles/file/nawenesafukulejawat.pdfIn PDF document text
  • http://wtmongolia.com/materials/file/16288079784.pdfIn PDF document text
  • https://doina.md/fckeditorfiles/file/10262055568.pdfIn PDF document text
  • http://jaatkinson.com/userimages/50794527071.pdfIn PDF document text
  • http://piotrkowska77.pl/zdjeciafile/75923065318.pdfIn PDF document text
  • http://moyamoya.center/images/hand_uploaded/files/91073149951.pdfIn PDF document text
  • http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1607240a30b840---38013879822.pdfIn PDF document text
  • https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/2fjdf51cq4k0g894kekvr9v6og/fuzemakoboxeturisunif.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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