Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 67 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• 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://chcial.ru/uplcv?utm_term=numbers+word+form+worksheet PDF link annotation

  • https://homestayhoian.vn/uploads/image/files/59218765580.pdfIn PDF document text
  • http://amandamaitland.com/images/file/34482007234.pdfIn PDF document text
  • https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/784f86e3227702259740851245824b49/42892443683.pdfIn PDF document text
  • https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/160bdaae493a70---nogilikutumudibilujolefu.pdfIn PDF document text
  • http://npi-management.com/ressource/site-image/files/sotevejafowozefaba.pdfIn PDF document text
  • http://www.gunyagder.org.tr/wp-content/plugins/super-forms/uploads/php/files/o82lu3gpie50iqogf6rrpgech5/49758681129.pdfIn PDF document text
  • http://zoncmswebsitebeheer.nl/files/editor/file/45468816658.pdfIn PDF document text
  • https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/6a8032f8d8ff832a2420fddc50fa7c67/75988616837.pdfIn PDF document text
  • https://pablohernandes.com/wp-content/plugins/super-forms/uploads/php/files/ae9d371cab144d061f500bf5d9b3e347/24994431704.pdfIn PDF document text
  • https://manualismedicina.hu/fileok/file/62393539794.pdfIn PDF document text
  • http://playitdirect.ca/ckfinder/uploadfiles/files/5115467839.pdfIn PDF document text
  • http://concilianavarra.com/userfiles/files/54976639893.pdfIn PDF document text
  • https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609660cf97465---wigadisedodipevawuderij.pdfIn PDF document text
  • https://craftsmancuttingdies.com/wp-content/plugins/super-forms/uploads/php/files/dd2cbf2fd665411d196dc90d61fe858b/38170573119.pdfIn PDF document text
  • http://tostonet.cl/ckfinder/userfiles/files/gifafunadugilazudelage.pdfIn PDF document text
  • https://interesttour.com/wp-content/plugins/super-forms/uploads/php/files/50d9f5f33c493bc9ae568b289f68ac30/gugugil.pdfIn PDF document text
  • http://stihoplet.by/upload/editor/files/masib.pdfIn PDF document text
  • https://valserve.in/web/k/main_admin/ckfinder/userfiles/files/bixitujasebutalelak.pdfIn PDF document text
  • http://xn--e1aaafipco3bk8gra3b.xn--p1ai/upload_picture/file/35824882727.pdfIn PDF document text
  • http://taketty.xyz/js/ckfinder/userfiles/files/90009313058.pdfIn PDF document text
  • http://meble-tk.pl/userfiles/file/wexabu.pdfIn PDF document text
  • https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/a8d326ee83fceaa544f1c3d3da5351f5/rejiwer.pdfIn PDF document text
  • https://oiweld.com/wp-content/plugins/super-forms/uploads/php/files/0135cf7de7074fa195b61cadc5ce8bc7/79023286991.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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