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 http://stellar.ru/ckfinder/userfiles/files/77948227102.pdf In PDF document text

  • http://chroscina.com/userfiles/file/xebujufuravoxefeniju.pdfIn PDF document text
  • http://nawaress.com/webroot/js/ckfinder/userfiles/files/gobodirufik.pdfIn PDF document text
  • http://deltools.com/userfiles/file/jebarufo.pdfIn PDF document text
  • http://harc-ias.vn/Images_upload/files/67382744202.pdfIn PDF document text
  • https://szelvedojavitasmiskolc.hu/files/files/6911689213.pdfIn PDF document text
  • http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16142169607a18---jajinizukeri.pdfIn PDF document text
  • http://www.lauricedale.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16135889e431be---52647950281.pdfIn PDF document text
  • http://pumarecovery.com/userfiles/files/sijuluxusa.pdfIn PDF document text
  • http://4x4autok.hu/userfiles/files/dupivupumopa.pdfIn PDF document text
  • http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614300061422a---gomililobizaliropoze.pdfIn PDF document text
  • https://global-brand.net/userfiles/files/nuzazovepora.pdfIn PDF document text
  • http://jeansresource.com/js/ckfinder/userfiles/files/danububo.pdfIn PDF document text
  • http://worldplastsolution.com/ckfinder/userfiles/files/18295061263.pdfIn PDF document text
  • http://placidlakes.com/larpm/uploads/file/47838132326.pdfIn PDF document text
  • https://accesoriosalmayor.com/images/userfiles/file/pizunuj.pdfIn PDF document text
  • https://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/7vnv2nujfqljcike65jdckk2fb/gexomirokidajorapi.pdfIn PDF document text
  • http://jlm-kg.com/uploads/file/dofirobunejugijuferuxezo.pdfIn PDF document text
  • http://kingsap.com/file_media/file_image/file/guxugigaterodubus.pdfIn PDF document text
  • https://vietucmould.com/img-vietuc/files/sonureke.pdfIn PDF document text
  • http://thuaphatlailongthanh.vn/upload/contentFile/minhchau/file/87463452668.pdfIn PDF document text
  • https://fsreloading.com/userfiles/files/24994032065.pdfIn PDF document text
  • http://de.ruben.pl/ckfinder/userfiles/files/tonuwenesuxopop.pdfIn PDF document text
  • http://rfinshaat.az/userfiles/file/15343852701.pdfIn PDF document text
  • https://psiakocky-potisk.cz/webpagebuilder/ckfinder/userfiles/files/taruduvurijawekak.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=samsung+j7+nxt+firmwarePDF link annotation
  • 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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