Malicious PDF — malware analysis report

Heuristics 5

• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• 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.
• 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://ggtraff.ru/strik?keyword=%25D9%2582%25D8%25B5%25D8%25B5+%25D9%2582%25D8%25B5%25D9%258A%25D8%25B1%25D8%25A9+%25D9%2584%25D9%2584%25D8%25A7%25D8%25B7%25D9%2581%25D8%25A7%25D9%2584+%25D8%25A8%25D8%25A7%25D9%2584%25D8%25A7%25D9%2586%25D8%25AC%25D9%2584%25D9%258A%25D8%25B2%25D9%258A+pdf In PDF document text

  • https://site-1042927.mozfiles.com/files/1042927/5351220597.pdfIn PDF document text
  • https://site-1038511.mozfiles.com/files/1038511/75173434043.pdfIn PDF document text
  • https://site-1043844.mozfiles.com/files/1043844/pitisugovadotafoj.pdfIn PDF document text
  • https://site-1043606.mozfiles.com/files/1043606/judutumofafubenepokotoz.pdfIn PDF document text
  • https://viweposedijul.weebly.com/uploads/1/3/1/0/131070314/kefud_libepoj.pdfIn PDF document text
  • https://vozutadisifik.weebly.com/uploads/1/3/1/4/131483249/250429.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/6857/1294/files/57994889142.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/7259/2801/files/68867426940.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/1467/4841/files/dark_souls_3_calculator_weapon.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/5135/9642/files/luz_de_las_naciones_2019_video.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/0003/7527/files/sagrada_familia_guided_tour_with_tower_access.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/733a915b-45d2-4b4a-9530-6204aea88e99/nivufunorogojubipukidisob.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0d1f4d0a-8854-46e0-8032-bf06405f163c/vilupuvupimuleban.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f760809a-f067-421e-929e-a5ed3a198649/84415361967.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1841d27b-3a9b-4bd1-8bac-0d338d13bac1/jufovumuwezojifujax.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/acd214b8-a7ab-4237-836f-062054f4a487/kumevuluguzarij.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c54752e7-db17-420b-aba6-07df2d732595/97644505028.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1f721581-169a-4c70-8531-5996a552de34/48820249778.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b957d646-b005-4118-b851-78a45004ebc6/95140387643.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/4480/6042/files/82019456946.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/2917/9811/files/usmc_monthly_counseling_worksheet.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
  • http://scripts.sil.org/OFLIn PDF document text

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