Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://higher-reason.com/wp-content/plugins/super-forms/uploads/php/files/evd9q9rmsnpev0e10a1baa6nvv/pupibumawenowowotutojur.pdf In PDF document text

  • http://wksystems.net/HotelEstimator/userfiles/file/lupekux.pdfIn PDF document text
  • http://nessium.net/userfiles/file/mugibuxagobapitesowiz.pdfIn PDF document text
  • https://www.scilights.com/wp-content/plugins/super-forms/uploads/php/files/47bae6d2db678576b841c64bfa25c86b/vulafalipabolagiwu.pdfIn PDF document text
  • http://hndgyl.com/v15/Upload/file/2021731151131094.pdfIn PDF document text
  • http://allmedicus.com/userfiles/file/borulikatoluzupowulubinu.pdfIn PDF document text
  • https://raiporjai.com/piceditor/file/63929894612.pdfIn PDF document text
  • http://apexhealthnutrition.com/newerac2c/userfiles/file/5543445006.pdfIn PDF document text
  • https://ntct-dz.com/ckfinder/userfiles/files/92057147734.pdfIn PDF document text
  • https://98ing.com/upload/ck/files/20210702_003805.pdfIn PDF document text
  • http://nedirajtebosnu.net/userfiles/file/20161250980.pdfIn PDF document text
  • http://artepcb.com/upload/files/dawonagijoseniwirixobo.pdfIn PDF document text
  • https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/00ac6e4633270357df45ca3de3dfbc56/kefigenizisuj.pdfIn PDF document text
  • http://scoutpate.com/userfiles/file/19633234008.pdfIn PDF document text
  • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/95a28c061c3a59d06083c6b08612ec7f/85014439036.pdfIn PDF document text
  • http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c5adbc293d4---40224354651.pdfIn PDF document text
  • https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160d72a08a694a---xotev.pdfIn PDF document text
  • https://www.justgym.co.za/wp-content/plugins/super-forms/uploads/php/files/tjm69lrkiu3nkrn2jmkht0uo4g/zeliv.pdfIn PDF document text
  • http://www.anjhimayath.com/upload/file/77308088636.pdfIn PDF document text
  • http://gangwonbnb.com/FileData/ckfinder/files/20210603_EC972990AECF4CCE.pdfIn PDF document text
  • http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2d2b7afbda---13437792920.pdfIn PDF document text
  • https://sdyh.gr/wp-content/plugins/super-forms/uploads/php/files/5vt2dcnon42u8elvgu3jlj8sa7/92793633624.pdfIn PDF document text
  • https://www.ideaklinikbakirkoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160821c55440f6---66631181263.pdfIn PDF document text
  • http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160e2fc6c77918---10263994830.pdfIn PDF document text
  • http://diagonal.org.ar/wp-content/plugins/formcraft/file-upload/server/content/files/16078c31546a64---65109498232.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=track+and+field+appPDF link annotation
  • http://lovewhereyoulv.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/540047289426ed93750daacd08a97865/32338189294.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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