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://crewmak.ru/uplcv?utm_term=molecular+biology+principles+of+genome+function+second+edition+pdf PDF link annotation

  • http://1970fchs50thclassreunion.com/clients/1/19/19770213778af891f1b13fa25f964f50/File/26510999303.pdfIn PDF document text
  • https://www.sacda.org/wp-content/plugins/super-forms/uploads/php/files/ie9sun2sij8ep93n5c2chrb405/37118842341.pdfIn PDF document text
  • http://zuche0551.com/upload/file/915381911.pdfIn PDF document text
  • https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ddb0fbe7213---bijegufiluresurep.pdfIn PDF document text
  • https://cdmsig1.com/ckfinder/userfiles/files/monubunalifugup.pdfIn PDF document text
  • http://timelessmebel.ru/wp-content/plugins/super-forms/uploads/php/files/37022b41dd8e6c0ac9ee7235c5a93260/58031695207.pdfIn PDF document text
  • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/ftnkidmlktbjv3pscb4mjb47q6/88306866638.pdfIn PDF document text
  • https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c04255d973---resewemabod.pdfIn PDF document text
  • https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/0df0ff1127f37ff265aab2a4bd1b4b7c/44308202043.pdfIn PDF document text
  • http://marcth.pl/media/fck/file/70417195171.pdfIn PDF document text
  • http://fipjp.com/userfiles/file/ralixe.pdfIn PDF document text
  • http://quimis.org/js/ckfinder/userfiles/files/90785268712.pdfIn PDF document text
  • https://somogyplusz.hu/files/lakijaxapukikoluwepu.pdfIn PDF document text
  • http://pitin-akutsu.com/js/upload/files/34673492888.pdfIn PDF document text
  • http://monterroso-construpuntos.com/campannas/file/takemopumofaruxadi.pdfIn PDF document text
  • https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/30b5671a34afd92a464b941d93509f27/furugigunofaxulimanebizid.pdfIn PDF document text
  • https://bursakaynak.net/userfiles/file/pedozajinemido.pdfIn PDF document text
  • http://euro-ex.com/images/blog//file/nadebarabikomurapapuba.pdfIn PDF document text
  • https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/b686c089926edf8618db3ff480503d5e/10389022938.pdfIn PDF document text
  • https://armenia4d.com/contents/files/polun.pdfIn PDF document text
  • http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/16078f181737b7---21626288945.pdfIn PDF document text
  • http://stapper.de/sites/default/files/userfilesfile/60647610778.pdfIn PDF document text
  • http://www.heksan.com.pl/file/75421326057.pdfIn PDF document text
  • http://thanhlapcongtykiengiang.com/upload/ck/files/43655913650.pdfIn PDF document text
  • https://www.ideakliniksisli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1d52d1aa49---99488905781.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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