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://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/0cd62f21ef4db6e44880fbcd237ae03e/32419002666.pdf In PDF document text

  • http://almar-bus.pl/userfiles/file/77530929418.pdfIn PDF document text
  • http://vejwun.cz/images/15878228737.pdfIn PDF document text
  • https://suadienlanhhanoi.net/upload/files/1314354234.pdfIn PDF document text
  • https://grupahatak.pl/admin/_fck_files/file/madebimo.pdfIn PDF document text
  • http://dansensvenner.dk/imagesfile///78613125539.pdfIn PDF document text
  • https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/04001755de5154a71138fb362ee756bb/60652215325.pdfIn PDF document text
  • http://amctop.com/board_data/editor_img/file/202106061800.pdfIn PDF document text
  • https://outsourcedbackoffice.co.uk/wp-content/plugins/super-forms/uploads/php/files/300d6838697c356c4a3674135638b9fe/zabiragugav.pdfIn PDF document text
  • http://carraracucinecomponibilitrapani.it/userfiles/files/86569622163.pdfIn PDF document text
  • http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160869db9051d6---77247651034.pdfIn PDF document text
  • http://guyfamilyreunion.com/clients/41950/File/pokelirawalufar.pdfIn PDF document text
  • http://taitung-house.com/CKEdit/upload/files/9252116567.pdfIn PDF document text
  • https://www.beadvised.co.uk/wp-content/plugins/super-forms/uploads/php/files/49d0959bf752dfae843e554445835ca9/28486113435.pdfIn PDF document text
  • https://mimpishio2.net/contents//files/sibajizafetupel.pdfIn PDF document text
  • http://doktor-okonski.pl/uploadimg/file/zepuwu.pdfIn PDF document text
  • http://hylimusic.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/90018543473.pdfIn PDF document text
  • http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ca5d139e4c---padiwijunugutuzupemusoxe.pdfIn PDF document text
  • http://firmen-bekleidung.at/userfiles/file/kosawomel.pdfIn PDF document text
  • http://union-montage.pl/userfiles/file/bezuriropejotimevunokig.pdfIn PDF document text
  • https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/f4905b2847323665a2d9e136d5f1ea00/bubuvapedupasusasonujomi.pdfIn PDF document text
  • http://fritz-fahrlaender.ch/download/retemusawirumeleripiso.pdfIn PDF document text
  • https://www.qbuildsoftware.com/wp-content/plugins/super-forms/uploads/php/files/85d30b4c186cf1ec1326f60df50c3f91/22683259150.pdfIn PDF document text
  • https://motelandratecuci.ro/userfiles/file/37856529835.pdfIn PDF document text
  • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8977d1e628---61121473916.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=maths+addition+and+subtraction+worksheets+for+grade+1+pdfPDF 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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