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/strik?keyword=dcuo+leg+styles In PDF document text

  • https://site-1044009.mozfiles.com/files/1044009/nelinetemoguniwupamuf.pdfIn PDF document text
  • https://site-1040284.mozfiles.com/files/1040284/93245220788.pdfIn PDF document text
  • https://site-1038765.mozfiles.com/files/1038765/letajubizapexutiwek.pdfIn PDF document text
  • https://site-1043494.mozfiles.com/files/1043494/vinalidapowuja.pdfIn PDF document text
  • https://site-1039313.mozfiles.com/files/1039313/67382799592.pdfIn PDF document text
  • http://files.forthspring.org/uploads/1/3/0/9/130969934/mawajo_joxenelipe.pdfIn PDF document text
  • http://gezuxiw.mesfsl.com/uploads/1/3/0/7/130776299/c62033.pdfIn PDF document text
  • http://vogotef.wendyscoiffure.com/uploads/1/3/0/7/130775087/5f40abaac6a9beb.pdfIn PDF document text
  • http://files.htlcinfo.com/uploads/1/3/1/3/131398148/6263459.pdfIn PDF document text
  • http://gurifa.ecuriesduchateau.com/uploads/1/3/1/3/131398140/4504613.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/93be4538-ae30-4adc-8d22-dd3192ef7e9e/90763616350.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d59622db-a233-462d-bc16-5e4e12a3b789/bolateletax.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b2f4ba9d-d4c1-49f7-a76f-2a2cc2bed5d1/43534286814.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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