Malicious PDF — malware analysis report

Heuristics 6

• 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://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/5db4uto64b0p9c4ggm0imvmi05/43080730834.pdf In PDF document text

  • http://carraracucinecomponibilitrapani.it/userfiles/files/zelikowebo.pdfIn PDF document text
  • http://wowbond.com/upload/Fckeditor/file/57231540625.pdfIn PDF document text
  • http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609ba461ec236---68263735967.pdfIn PDF document text
  • http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607c689e632b4---66995464149.pdfIn PDF document text
  • http://caratow.eu/userfiles/file/difamukorezuwapeg.pdfIn PDF document text
  • https://advancedcheckcashadvance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a63da95b4b---rixon.pdfIn PDF document text
  • https://g3az.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e15248d8125---fatakakot.pdfIn PDF document text
  • https://iqmuseum.mn/uploads/files/97096231603.pdfIn PDF document text
  • https://bienenaktuell.com/sites/bienenaktuell.com/files/file/binojoliwesisesenew.pdfIn PDF document text
  • https://ta-taiwan.com/app/webroot/userfiles/files/89531715776.pdfIn PDF document text
  • https://deepex.hu/hirek/files/kesekasitolab.pdfIn PDF document text
  • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/t9ct1jdh82i6mitpblopumh9v2/65910460192.pdfIn PDF document text
  • http://vibrosystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b22fb8a50df---botuwobinuzoril.pdfIn PDF document text
  • https://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/569f89c96d4ec8a301abcd0518485493/39135273694.pdfIn PDF document text
  • http://hakkabrothers.com/userfiles/file///derar.pdfIn PDF document text
  • https://promocionesnma.com/wp-content/plugins/super-forms/uploads/php/files/04d9e7c04f39252e50a0b343bfba2d0d/92130154918.pdfIn PDF document text
  • http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ddd44bf3edf---66398606985.pdfIn PDF document text
  • https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac94775adfb---48406756187.pdfIn PDF document text
  • https://satybharat.com/ci/userfiles/files/50786130261.pdfIn PDF document text
  • http://aaaexpressac.com/userfiles/file/35801625822.pdfIn PDF document text
  • http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/1608129c92ba29---kobepomex.pdfIn PDF document text
  • http://ciaooo.ru/uploades/userfiles/file/mupuwabetesixi.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=cara+cold+brew+manualPDF link annotation
  • https://mediaget.com/userfiles/files/gubomijexuxotasan.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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