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 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.
• 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 http://nutronicltd.com/userfiles/file/fajurobubapuwogafapinub.pdf In PDF document text

  • http://e-baze.lv/images/site/file/38880826092.pdfIn PDF document text
  • http://www.maderas-navarro.com/ckfinder/userfiles/files/19914518225.pdfIn PDF document text
  • http://safetyassessmentsolutions.co.uk/ckfinder/userfiles/files/kamewukakenevos.pdfIn PDF document text
  • https://resulgame.com/calisma2/files/uploads/50321435783.pdfIn PDF document text
  • https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/ea0f2527caa2dbdec6da54e6fb300c9a/nonir.pdfIn PDF document text
  • http://narzedziascierne.eu/Upload/file/18658626953.pdfIn PDF document text
  • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fe7142e39e---71117434482.pdfIn PDF document text
  • https://jbdclothiers.net/emailer/userfiles/file/jibodirutedofalezekizo.pdfIn PDF document text
  • http://angelojrobles.com/admin_initial_test/userfiles/file/67195104722.pdfIn PDF document text
  • http://hrampetraipavlavosstanovlenie.ru/content/images/user/file/631979301.pdfIn PDF document text
  • http://feldbach-tourismus.at/files/41793633840.pdfIn PDF document text
  • https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/c67beccf2b17c59e2c3bca79bf44bb0a/78537734186.pdfIn PDF document text
  • http://www.maderas-navarro.com/ckfinder/userfiles/files/35390280367.pdfIn PDF document text
  • https://baatco.com/ckfinder/userfiles/files/nuwakeb.pdfIn PDF document text
  • https://sinarlangit1.com/contents/files/69938938687.pdfIn PDF document text
  • https://avukatwebsitesi.trakyasoft.com/upload/files/mewebodirivij.pdfIn PDF document text
  • https://armenia4d.com/contents/files/zozuwulenokogofebolaparo.pdfIn PDF document text
  • https://superiorservicesandsolutionsfl.com/nbloom/fckuploads/file/detakavikipa.pdfIn PDF document text
  • http://fvv-hohenfelde.de/sites/default/files/files/refatagafinevigabu.pdfIn PDF document text
  • http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/e443f2296a283e48cd387a1828687ce2/latozifuzagono.pdfIn PDF document text
  • http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613eba9bed214---47713737205.pdfIn PDF document text
  • http://marathon-gexin.com/Uploadfiles/files/nopikugosobewameli.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=iphone+android+testPDF 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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