Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Macro/content-enable lure medium SE_ENABLE_LURE
  Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
• 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=merge+and+split+pdf+online+for+free PDF link annotation

  • http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607bef413f604---74500776043.pdfIn PDF document text
  • https://mcq-exambd.com/app/webroot/ckfinder/userfiles/files/4708041279.pdfIn PDF document text
  • http://tizianaiberti.it/userfiles/files/kebazuverulowulibefuso.pdfIn PDF document text
  • http://mattstergamer.com/wp-content/plugins/super-forms/uploads/php/files/toldbfhr52cjksql0scvl471j2/razakanipe.pdfIn PDF document text
  • http://pnmanagementsolutions.in/uploads/80335022784.pdfIn PDF document text
  • https://malayalamfoundation.org/admin/my_files/file/noselepubirulifegav.pdfIn PDF document text
  • https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16086a2187a0f8---7505379387.pdfIn PDF document text
  • http://accessprecision.com/userfiles/file/luropisoluzusimifebuwom.pdfIn PDF document text
  • http://gerocuki.hu/user/file/folirovifavexujajufiwirit.pdfIn PDF document text
  • http://hiace-yoshikawa.com/js/upload/files/97525859305.pdfIn PDF document text
  • https://wamsconference.com/wp-content/plugins/super-forms/uploads/php/files/216922a316242fa8d90d911454f49088/5041869502.pdfIn PDF document text
  • https://pomacanthe-art.fr/imagebeforeafter/files/70573531474.pdfIn PDF document text
  • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/160754e9d6c250---dixaximomereguzeligewe.pdfIn PDF document text
  • http://icsbc.ru/fuploader//file/34848939732.pdfIn PDF document text
  • https://infypos.com/infyposcms/media/92889986505.pdfIn PDF document text
  • https://enville.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e62eb4536a4---dewasigonegapejuje.pdfIn PDF document text
  • http://binhchuachay.info/Images_upload/files/rinumewizovodaf.pdfIn PDF document text
  • https://renewone.de/files/84283007889.pdfIn PDF document text
  • http://vattucongtrinh.com/userfiles/file/82413419332.pdfIn PDF document text
  • https://coebmsf.com/userfiles/file/87523058903.pdfIn PDF document text
  • https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160a97ed50c871---32929428927.pdfIn PDF document text
  • http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd51d74c0ff---44362207787.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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