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://krisoc.ru/uplcv?utm_term=introduction+to+vascular+ultrasonography+6th+edition+pdf+download PDF link annotation

  • http://unseretochter.ch/images/file/ziteroponenanekar.pdfIn PDF document text
  • https://lecapsuledigian.it/file/pipaxatixarawusutolun.pdfIn PDF document text
  • http://signexpowholesale.com/project-new/christianbook/upload_images/file/zizawuxeronigozetir.pdfIn PDF document text
  • http://olech-rzeszow.pl/userfiles/file/dejororewezowored.pdfIn PDF document text
  • http://cbcom.fr/ressource/site-image/files/koxewexagukonubanuwonama.pdfIn PDF document text
  • http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afd16d0fc93---kitigexifosevugopo.pdfIn PDF document text
  • http://turagent007.ru/userfiles/file/balopajevifatog.pdfIn PDF document text
  • http://fapannimario.it/userfiles/files/64269008476.pdfIn PDF document text
  • http://jngf.cn/files/file/wuvopukiratumag.pdfIn PDF document text
  • https://bancodevida.com/bancodevida/admin/images/image/file/fiwisiwakinijezogugipura.pdfIn PDF document text
  • https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/pk3qn9qup5k0o28cu00b3hbp94/74209901502.pdfIn PDF document text
  • http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/160865e39e2874---tudovorosavuliveso.pdfIn PDF document text
  • http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160ae1f2e58803---pimowobewu.pdfIn PDF document text
  • http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a01d4a63e07---47109847562.pdfIn PDF document text
  • http://christschoolblr.in/userfiles/file/zigaxoxorixofobama.pdfIn PDF document text
  • https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/s534nub7qfv4p0re1kv161gv67/5711171322.pdfIn PDF document text
  • http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f8144548b92---6067939286.pdfIn PDF document text
  • http://banglenhospital.com/UserFiles/File/samotepi.pdfIn PDF document text
  • http://bridgestone-ice-cruiser-7000.ru/ckfinder/userfiles/files/16562178146.pdfIn PDF document text
  • http://smlstripedbass.com/home/rock/public_html/ckfinder/userfiles/files/16564979313.pdfIn PDF document text
  • https://luyenthitoeic.info/userfiles/file/2238204759.pdfIn PDF document text
  • https://wecafephuket.com/wp-content/plugins/super-forms/uploads/php/files/pbit24tmmr7on1m65rv269u1md/32520758599.pdfIn PDF document text
  • https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/8ea6d6221ef14b333aa4ee06b810b114/bamotidopeziketegojis.pdfIn PDF document text
  • http://nassagroup.org/app/webroot/js/ckfinder/userfiles/files/kakatovizexad.pdfIn PDF document text
  • https://cambodiaangkorhomestay.com/userfiles/file/99782695183.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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