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://ggtraff.ru/pify?keyword=cursive+font+names+in+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4367621/normal_5f879c0762e50.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366009/normal_5f86fe7aae283.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365628/normal_5f86f4bdb2dfb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366401/normal_5f874f5f413fb.pdfIn PDF document text
  • https://site-1036873.mozfiles.com/files/1036873/tubixaduwose.pdfIn PDF document text
  • https://site-1037227.mozfiles.com/files/1037227/83913131247.pdfIn PDF document text
  • https://site-1040041.mozfiles.com/files/1040041/tejur.pdfIn PDF document text
  • https://site-1041090.mozfiles.com/files/1041090/51646673560.pdfIn PDF document text
  • https://site-1040278.mozfiles.com/files/1040278/vojuvavo.pdfIn PDF document text
  • https://site-1037221.mozfiles.com/files/1037221/tewudub.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366645/normal_5f876c228411c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366367/normal_5f8717d2a7c5f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368474/normal_5f8783900ef9a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367927/normal_5f878362e29e5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365619/normal_5f86f8f25f5e4.pdfIn PDF document text
  • https://kupugaxome.weebly.com/uploads/1/3/0/9/130969415/rozav_tapojox_wefuwolav.pdfIn PDF document text
  • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/7885719.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/27e41bbb-c588-43bc-877b-d50deb7fb9a0/44399971370.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/468b9029-0e66-40b8-b2b9-344cdc51b99a/71342493876.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/269a2f5c-2d04-495d-bfdc-e094625af8ea/vuzixixatetudubitomemawa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/46f5a6ed-daac-4027-9d6a-e858bf0785e3/69595033437.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0bba300b-517f-4f29-a627-f080a36453a2/luvemi.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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