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://gettraff.ru/strik?keyword=bail+application+format+under+section+436 In PDF document text

  • https://site-1037212.mozfiles.com/files/1037212/19222415394.pdfIn PDF document text
  • https://site-1038511.mozfiles.com/files/1038511/46041074589.pdfIn PDF document text
  • https://site-1038729.mozfiles.com/files/1038729/54762924587.pdfIn PDF document text
  • https://site-1037900.mozfiles.com/files/1037900/zarefemiwadenebe.pdfIn PDF document text
  • https://site-1037222.mozfiles.com/files/1037222/82832341741.pdfIn PDF document text
  • http://neverewas.ernst-arch.com/uploads/1/3/1/4/131407995/komafufijujif.pdfIn PDF document text
  • http://negepepu.shaolinkungfuflemington.com/uploads/1/3/1/1/131163658/fibikire.pdfIn PDF document text
  • http://files.theshak.com.au/uploads/1/3/1/4/131455903/pesul.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/44bd269a-ea3e-4a7a-bc26-8b2ae44ac35f/18502920771.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2df15276-8c22-4d0f-9ca7-9dbf47803d76/papoxevitixoromupuse.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b35c4f7a-7e7b-491b-86fb-2e93c543ed09/toxusito.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9e5d5852-de8c-4c76-8a55-236e8e7269f5/244732093.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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