Malicious PDF — malware analysis report

Heuristics 7

• 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 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://smidgel.ru/uplcv?utm_term=fluid+mechanics+landau+pdf PDF link annotation

  • http://saigonford3s.com/uploads/2021-09-02/images/files/21277990098.pdfIn PDF document text
  • https://vargyasnekonyveles.hu/kepek/other/file/pirazetebesemixetofibasim.pdfIn PDF document text
  • https://marlin-aquarium.ru/ckfinder/userfiles/files/84237774370.pdfIn PDF document text
  • https://braintreeclinics.com/app/webroot/img/files/70404202975.pdfIn PDF document text
  • http://yogathoitrang.com/quangbasanpham/app/webroot/upload/image/files/mowavakemekofani.pdfIn PDF document text
  • https://coil.hk/upload/files/nizejekakezoruxafunufav.pdfIn PDF document text
  • http://aptekarynek.pl/zdjecia/fck/file/jinopadegujagadiwewemanil.pdfIn PDF document text
  • http://westfallassociates.com/documents/file/jimixukanati.pdfIn PDF document text
  • https://svarovanijelinek.cz/ckfinder/userfiles/files/98480625287.pdfIn PDF document text
  • http://nemochem.cn/upload/files/51197863993.pdfIn PDF document text
  • http://snft.ro/media/file/1142886499.pdfIn PDF document text
  • https://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/dc15795c4cecbe62f84b646b7ccd0d4f/4333118068.pdfIn PDF document text
  • https://baptistfriends.org/media/tigalerizepodozapa.pdfIn PDF document text
  • http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16136b9c1b8218---54258826222.pdfIn PDF document text
  • https://mai-avto.ru/upload_files/file/90917006228.pdfIn PDF document text
  • http://www.jindatunnel.com/up_files/file/kezivusu.pdfIn PDF document text
  • https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/30c5a4a9b3f4b72352c0dc4731dac34b/7291892745.pdfIn PDF document text
  • http://lactopad.com/uploads/files/zebotebadodulivunu.pdfIn PDF document text
  • http://zovsh.com/Uploadfiles/files/vilokuvatijaxajilapi.pdfIn PDF document text
  • https://amt-alarmy.pl/userfiles/file/91599462164.pdfIn PDF document text
  • http://uitetenindex.nl/images/uploads/46301708373.pdfIn PDF document text
  • http://perechen-jurnalov.ru/js/ckfinder/userfiles/files/joboda.pdfIn PDF document text
  • http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/1614022c2d65eb---vigiberubagidepawivisi.pdfIn PDF document text
  • http://rockhousemethod.com/ckfinder/userfiles/files/11924849858.pdfIn PDF document text
  • http://kunbot.com/upload/files/wunawile.pdfIn PDF document text
  • http://poslovniimenik.net/firme_data/files/97438598782.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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