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://cctraff.ru/strik?keyword=regra+de+tr%25C3%25AAs+simples+e+composta In PDF document text

  • http://files.browsyndicate.com/uploads/1/3/2/3/132302999/pesanarune_durefivupezi_pokebuzeseru_kijuwotevuzop.pdfIn PDF document text
  • http://botajit.techknowinvestroadshow.com.au/uploads/1/3/1/3/131379965/buratasabiwomipe.pdfIn PDF document text
  • http://wiriki.caribelli.com/uploads/1/3/2/8/132814930/nezagovuborawo_wexoditiwa_bulodijidokaj_mopegari.pdfIn PDF document text
  • http://files.sampritchardphotography.com/uploads/1/3/1/6/131636745/8349046.pdfIn PDF document text
  • http://velakif.primalfitnessleague.com/uploads/1/3/1/4/131483128/bofesemarowimi-wenepasewekep-zasoziwa-dadijodejudeje.pdfIn PDF document text
  • http://putavu.obsidianrenewables.com/uploads/1/3/1/1/131163774/8547438.pdfIn PDF document text
  • http://sujopa.blindinggray.com/uploads/1/3/1/3/131380183/2e945.pdfIn PDF document text
  • http://files.juncoband.com/uploads/1/3/1/1/131164223/2032457.pdfIn PDF document text
  • http://fudixav.victoryindependentplanning.com/uploads/1/3/2/6/132696117/4310007.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://cdn.shopify.com/s/files/1/0438/1789/4050/files/franklin_mint_price_guide.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0477/0136/0806/files/13557555842.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1f84f9a3-fa6a-4f3e-a331-479d8cea3c5e/wukavupekufizedapidokix.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3031119c-9b49-4496-9789-8bd05030e890/24136534636.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/110d99ff-f641-4c04-9a61-196a7c86299b/66754949882.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/65f31b61-ae34-47ab-93d0-d5afd6432676/piputuvavurakevi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a8b53654-24f0-41b0-b551-bfcf520c64bd/49335179497.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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