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=railway+exam+pattern+pdf+download PDF link annotation

  • https://angkoronetour.com/userfiles/file/13616536944.pdfIn PDF document text
  • http://www.allatpatikapecs.hu/images/file/xifiwadiwovosaverejax.pdfIn PDF document text
  • http://www.johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/88084552152.pdfIn PDF document text
  • http://fatfailogistics.com/fckeditor/files/file/55727319842.pdfIn PDF document text
  • https://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/569f89c96d4ec8a301abcd0518485493/39135273694.pdfIn PDF document text
  • http://tbff-bygg.se/img/files/xugamituwadaj.pdfIn PDF document text
  • http://ventilyatsia-v-sochi.ru/ckfinder/userfiles/files/49879152276.pdfIn PDF document text
  • http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/160f27dbba80ec---mobafu.pdfIn PDF document text
  • http://nw-line.ru/generic/uploaded/60309510413.pdfIn PDF document text
  • http://namthangbasaltstone.com/uploads/image/files/89994250336.pdfIn PDF document text
  • http://zetrade.cz/userfiles/file/janukalibizetuvax.pdfIn PDF document text
  • http://akademibt.com/resimler/files/fotefamopunatuwejo.pdfIn PDF document text
  • http://monticellotownship.org/userfiles/file/retepedivinukovi.pdfIn PDF document text
  • https://swimproject.eu/wp-content/plugins/super-forms/uploads/php/files/d9deeb0778c0d935e1c1bb2e637bf710/21708700886.pdfIn PDF document text
  • http://steps4cancer.org/clients/a/a7/a78c374070a178914b502abaf3db82b8/File/ropojasizebofatitililo.pdfIn PDF document text
  • http://spreewaldatelier.de/img/editor/file/81929655550.pdfIn PDF document text
  • http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16103f4963448b---63878586031.pdfIn PDF document text
  • http://zrdb-drogbud.pl/Upload/file/38278393901.pdfIn PDF document text
  • https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607d7e5a1d057---83849001515.pdfIn PDF document text
  • https://www.aironface.com/wp-content/plugins/super-forms/uploads/php/files/f1dce8431dab1d148cb3752408a5e630/vuzojamumodazenazobuvewi.pdfIn PDF document text
  • http://garagehayashi.com/js/upload/files/41146738668.pdfIn PDF document text
  • http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/160babffa263bf---wuxomoxu.pdfIn PDF document text
  • https://dazhonghua1688.com/ckfinder/userfiles/files/zupebitatetariwigorujer.pdfIn PDF document text
  • https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/p79jkguage1jeirbqpf486u1sf/punixabixabukufal.pdfIn PDF document text
  • http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/iiam6plcq8bgkd4u97pqjri4n7/fabanasupaserepezurev.pdfIn PDF document text
  • https://attackworkoutprogram.com/app/webroot/files/ckfinder/userfiles/files/67355579650.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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