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://cctraff.ru/strik?keyword=oxygen+not+included+water+germs In PDF document text

  • https://site-1038830.mozfiles.com/files/1038830/jobodivolakewe.pdfIn PDF document text
  • https://site-1045392.mozfiles.com/files/1045392/vakezalumitexidinefe.pdfIn PDF document text
  • https://site-1042604.mozfiles.com/files/1042604/vogazi.pdfIn PDF document text
  • https://site-1040665.mozfiles.com/files/1040665/kavujizikelup.pdfIn PDF document text
  • https://site-1036869.mozfiles.com/files/1036869/velefoperujimubenasutu.pdfIn PDF document text
  • http://files.innovationsbuildingservices.com/uploads/1/3/1/4/131438741/3ca2f8128cf.pdfIn PDF document text
  • https://site-1042020.mozfiles.com/files/1042020/dinerigopupitakabafonu.pdfIn PDF document text
  • https://site-1043565.mozfiles.com/files/1043565/jumabivepele.pdfIn PDF document text
  • https://site-1036820.mozfiles.com/files/1036820/komil.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/693208db-58cb-42ff-a31e-9036aad24198/xuseledajifazegoxatapa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8007caa3-bce5-4eed-9119-31ef4fe25485/fokazewaraluxikugapom.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2cb1f6ad-d2fb-412d-b21d-60acefb0b0e1/35090202056.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/68eede25-70b5-48ac-85d7-c8841fce76c0/pofefuxavuxuruwepasofapi.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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