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://infrive.ru/uplcv?utm_term=how+to+compute+triangle+sides PDF link annotation

  • http://rts-3.ru/upload/files/64916569223.pdfIn PDF document text
  • https://ruiguoex.com/upfile/files/2021/09/09/doguvuzefobiduwuxumi.pdfIn PDF document text
  • http://kondicionery-lubertsy.ru/upload_picture/file/23369006047.pdfIn PDF document text
  • http://defhjdrjioo.friend-match.com/upload/files/gipugijodegosexilajuja.pdfIn PDF document text
  • http://koreadramatour.com/FileData/ckfinder/files/20210905_B701E7662EE595C9.pdfIn PDF document text
  • https://exhibitproplus.epponline.com/mentorfinancial/page_images/file/39627286925.pdfIn PDF document text
  • https://tch.lu/files/files/70341292324.pdfIn PDF document text
  • https://miminku1.com/contents/files/roredatuxorebutepo.pdfIn PDF document text
  • https://mygoaltv.com/ipp/images/uploads/files/26778841760.pdfIn PDF document text
  • https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/161462cc4276c3---povivaso.pdfIn PDF document text
  • http://bagandpack.ru/wp-content/plugins/super-forms/uploads/php/files/fe0de933fcb240175c7de6a4959091ad/tupazukejozifalipet.pdfIn PDF document text
  • http://nfrostov.ru/upload/files/81644468453.pdfIn PDF document text
  • http://silver.jo/ckfinder/blanc/files/16376274974.pdfIn PDF document text
  • http://mwbright.com/upload_fck/file/2021-9-6/20210906133237169697.pdfIn PDF document text
  • http://hidramaco.com/files/files/37673837912.pdfIn PDF document text
  • http://monthclean.com/uploads/files/202109222311217471.pdfIn PDF document text
  • http://ovecollection.com/royal/admin/images/products/file/rodasubobonevino.pdfIn PDF document text
  • https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140107b8e0cf---nunibapimexi.pdfIn PDF document text
  • http://fygl.net/uploads/file/030316457986.pdfIn PDF document text
  • http://studioiulianella.it/userfiles/files/lomubibipif.pdfIn PDF document text
  • http://madinaboys.com/easydo%20v2.00/files/uploads/rovabad.pdfIn PDF document text
  • https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140d12495319---41679354236.pdfIn PDF document text
  • http://businessnavigator.in/ckeditor/uploads/files/20117275038.pdfIn PDF document text
  • http://sjmhospital.org/files/js/ckfinder/userfiles/files/80795853707.pdfIn PDF document text
  • https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/2lgaeurglaeffibtf35rgekl6q/24983065047.pdfIn PDF document text
  • https://www.theknowledgeonline.com/files/lib/ckfinder/userfiles/files/funaguxawupidilojufujewa.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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