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://gettraff.ru/strik?keyword=subordinadas+sustantivas+ejercicios+resueltos+pdf In PDF document text

  • https://site-1038709.mozfiles.com/files/1038709/46369481534.pdfIn PDF document text
  • https://site-1037132.mozfiles.com/files/1037132/50287569198.pdfIn PDF document text
  • https://site-1040280.mozfiles.com/files/1040280/86281041203.pdfIn PDF document text
  • http://lijegaza.laurenceremacle.com/uploads/1/3/1/4/131437940/4616442.pdfIn PDF document text
  • http://files.companionanimalnorfolk.com/uploads/1/3/2/6/132682862/0558ac9.pdfIn PDF document text
  • https://site-1042740.mozfiles.com/files/1042740/dafatibatumuwesizulu.pdfIn PDF document text
  • https://site-1039547.mozfiles.com/files/1039547/41620769675.pdfIn PDF document text
  • https://site-1037869.mozfiles.com/files/1037869/pigonufekesexo.pdfIn PDF document text
  • https://site-1039833.mozfiles.com/files/1039833/14964832847.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://uploads.strikinglycdn.com/files/7cbc7696-2ed3-49e6-8f1a-3eee52162319/89701033660.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5d68f93f-2f48-4c26-b9bc-9747535bd6cc/65922868561.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dca09b80-e08c-48c1-8348-f4c4ed290883/14175664509.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
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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