Malicious PDF — malware analysis report

Heuristics 4

• 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 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/123?keyword=cholesterol+guidelines+2020+chart In PDF document text

  • https://cdn-cms.f-static.net/uploads/4368952/normal_5f87aafb7db33.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365619/normal_5f872c59e6695.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365601/normal_5f875fb9bb624.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366995/normal_5f87e105e88d1.pdfIn PDF document text
  • https://site-1037865.mozfiles.com/files/1037865/22233174592.pdfIn PDF document text
  • https://site-1040003.mozfiles.com/files/1040003/debavubafe.pdfIn PDF document text
  • https://site-1037835.mozfiles.com/files/1037835/67316587732.pdfIn PDF document text
  • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/1302795.pdfIn PDF document text
  • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/xojajuv-mitegejitokuxig.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/6b515229-cd39-4f2d-a9e3-f43a53dc5618/63391848834.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9ea59e9f-61bf-4abf-a977-e357b81b3a23/97764439590.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c1b1d6f8-0763-4e14-9a6e-7d0185044d2e/3124382158.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/0228/1123/files/29841235154.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/7715/7542/files/39980840038.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0480/0403/8815/files/43546180950.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/0910/0957/files/vonejuxepijelugire.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/9150/2269/files/rotukudunus.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://scripts.sil.org/OFLIn PDF document text

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