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 https://irlanc.ru/uplcv?utm_term=seaborg+500+mj+manual PDF link annotation

  • http://aeronautike.com/userfiles/file/18450898835.pdfIn PDF document text
  • https://jewfri.kr/files/image/files/85773115729.pdfIn PDF document text
  • https://musikkursus.dk/userfiles/file/nigiviluzebijijaware.pdfIn PDF document text
  • http://reutlinger.pl/userfiles/file/18253096722.pdfIn PDF document text
  • http://www.letnifestiwal.pl/ckfinder/userfiles/files/81300594426.pdfIn PDF document text
  • http://vizugy.hu/uploads/files/files/50689585755.pdfIn PDF document text
  • http://smartpaintingplus.com/userfiles/files/96858881813.pdfIn PDF document text
  • https://adlinefor.com/home/webagen/public_html/korn/data/file/danamufulitujilid.pdfIn PDF document text
  • http://onlytech-tunisie.com/userfiles/file/45227101814.pdfIn PDF document text
  • http://fairway.cc/images/blog//file/56226277840.pdfIn PDF document text
  • http://fullcolorspandoeken.nl/userfiles/file/36725324691.pdfIn PDF document text
  • https://bienenaktuell.com/sites/bienenaktuell.com/files/file/burasusumakemov.pdfIn PDF document text
  • https://ilexgold.com/app/webroot/files/userfiles/files/68988362676.pdfIn PDF document text
  • https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612abc435d8a2---bukugat.pdfIn PDF document text
  • https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b61c09bd939---77706870203.pdfIn PDF document text
  • http://nbpcpentecostalchurch.com/clients/65183/File/ralepanam.pdfIn PDF document text
  • http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160872823b137d---26920368447.pdfIn PDF document text
  • https://medok18.ru/wp-content/plugins/super-forms/uploads/php/files/785cf86f6d0954ac80dc0cbb11ce8d4a/vazezowaxulola.pdfIn PDF document text
  • http://www.tecnotrefg.it/wp-content/plugins/formcraft/file-upload/server/content/files/160d67a8a8f5b0---sujol.pdfIn PDF document text
  • http://santabruna.cl/upload/file/jafin.pdfIn PDF document text
  • http://jianianhuayule.a9188.com/upload_files/art_files/files/20210822_024059.pdfIn PDF document text
  • http://osc-pribor.ru/products_pictures/file/vuwinu.pdfIn PDF document text
  • https://cantellodetersiviprofessionali.it/uploads/file/demedibinelamikoveroxa.pdfIn PDF document text
  • http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096ce4a417d7---91826169053.pdfIn PDF document text
  • https://thejasmineway.net/wp-content/plugins/super-forms/uploads/php/files/nitvsg6s21gfe3k6kkcnmi4265/63434285864.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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