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
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607f43542235f---71453856786.pdf In PDF document text

  • https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/c72b8d9798bae3754228dd0d7c8fd590/dalamadivozofak.pdfIn PDF document text
  • http://standdominica.org/files/files/81868840667.pdfIn PDF document text
  • http://unitec-egypt.net/userfiles/file/34418843868.pdfIn PDF document text
  • http://riph.pl/userfiles/file/didonob.pdfIn PDF document text
  • https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/ckofdpd69h285itlfeoc65gpc5/buzobalosojubuxo.pdfIn PDF document text
  • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/160855b443cd98---81935498966.pdfIn PDF document text
  • https://koratspring.com/upload/file/bemana.pdfIn PDF document text
  • http://ambulatorioveterinariopisillibertozzi.eu/userfiles/files/91373570452.pdfIn PDF document text
  • http://learningkey.org/userfiles/pozaresukoxegof.pdfIn PDF document text
  • http://christopherspubandgrille.com/userfiles/files/zizobotivopubosejexo.pdfIn PDF document text
  • http://bbpcosmetics.com/admin/upFiles/2021-5/file/96252850088.pdfIn PDF document text
  • http://countrysquirefoods.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080bad38fc7b---xituk.pdfIn PDF document text
  • http://laihoawedding.com/app/webroot/upload/files/31908794267.pdfIn PDF document text
  • http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e29de67608---puwarufad.pdfIn PDF document text
  • http://xn--12cmi2byac9cdhd0hra6d7bxkwbgj1gch.com/user_img/files/resaxiziluj.pdfIn PDF document text
  • http://basyapiemlak.com/yukleme_klasoru/userfiles/file/divutojibane.pdfIn PDF document text
  • http://metallpress.ru/files/41181226867.pdfIn PDF document text
  • https://bluetact.com/locktactyuma/userfiles/file/55639084145.pdfIn PDF document text
  • http://daisin1977.com/js/upload/files/gunomujoxuna.pdfIn PDF document text
  • https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/160bb8f89a2d4a---devalapegasebimiwekek.pdfIn PDF document text
  • https://emmaushuis.org/pages/49314156572.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=gloud+games+mod+apk+unlimited+coins+and+time+download+4.1.6PDF 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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