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://philabc.ru/uplcv?utm_term=write+and+evaluate+numerical+expressions+involving+whole+number+exponents+worksheets PDF link annotation

  • https://qfuse.it/images/uploaded_files/ckfinder/files/1630289742_7440c650ce.pdfIn PDF document text
  • https://yukkumpulgroup1.com/contents//files/85919545081.pdfIn PDF document text
  • https://viveironativodevicosa.com.br/ckfinder/userfiles/files/puxodubefivubatabu.pdfIn PDF document text
  • https://facade-metal.ch/ckfinder/userfiles/files/67858258478.pdfIn PDF document text
  • http://hoangduy.vn/vn/files/24343952584.pdfIn PDF document text
  • https://mvpartners.be/images/uploadedimages/file/72047802325.pdfIn PDF document text
  • http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/0c40699072a95a11430511bf8f6b7bf8/58014009408.pdfIn PDF document text
  • http://gat-asset.com/CKEdit/upload/files/86924771887.pdfIn PDF document text
  • https://www.napariverinn.com/wp-content/plugins/super-forms/uploads/php/files/56e794152d92e78dc1c3a9fe4d789d52/41535921159.pdfIn PDF document text
  • https://bbensonmft.com/wp-content/plugins/super-forms/uploads/php/files/3e358d1a9b0ea59475802ba74d2d6fbd/jefuwagake.pdfIn PDF document text
  • http://mtt-association.fr/upload/file/79447425001.pdfIn PDF document text
  • http://circolonauticofavignana.it/userfiles/files/jaseg.pdfIn PDF document text
  • https://acornschoolcharleston.org/wp-content/plugins/super-forms/uploads/php/files/b1841a9d439da3df6dd96c498b6b8752/45534221585.pdfIn PDF document text
  • https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/820729279df07b209142e12ad8b1e5f5/79281514462.pdfIn PDF document text
  • https://agentcctv.com/userfiles/file/10769710469.pdfIn PDF document text
  • http://structurecreative.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cd1ac33ca9---52434078320.pdfIn PDF document text
  • https://lemanssrl.it/file/maziwevevadatinibodovoji.pdfIn PDF document text
  • https://costumeworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c68fb0366a---zopiwabunarumivokav.pdfIn PDF document text
  • https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/153428ae20ec404957eaccc382bd3ef4/41785581897.pdfIn PDF document text
  • https://performanceltg.com/wp-content/plugins/super-forms/uploads/php/files/b4948fadd0ec91191a0bea1bd080d306/nojepodepuvopodave.pdfIn PDF document text
  • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bd885b1b9a1---susaja.pdfIn PDF document text
  • https://www.marvistasales.com/wp-content/plugins/super-forms/uploads/php/files/7a72460c18e98d075228e0241ad41ffe/95378711310.pdfIn PDF document text
  • http://hotelstrack.com/bot/ckfinder/uf/files/79297336302.pdfIn PDF document text
  • http://cementfeet.com/userfiles/file/nifibajo.pdfIn PDF document text
  • https://konferencii.ru/js/ckfinder/userfiles/files/92972014234.pdfIn PDF document text
  • https://zebcom.in/userfiles/file/semopenubowuv.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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