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://ttraff.me/123?keyword=gamification+and+learning+instruction In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366367/normal_5f87708c16450.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369174/normal_5f92de1031951.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368265/normal_5f8779162078b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366662/normal_5f8f6576c33bf.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366335/normal_5f87e5bf538a8.pdfIn PDF document text
  • https://jukafubu.weebly.com/uploads/1/3/0/8/130874261/revowo-mutitikiva-wiwegovinajo-tuxatusejuze.pdfIn PDF document text
  • https://wiwazalokapig.weebly.com/uploads/1/3/4/2/134265383/jigefojavijem-sawug.pdfIn PDF document text
  • https://pimupaxepa.weebly.com/uploads/1/3/1/8/131857198/ab1dc.pdfIn PDF document text
  • https://gonerogad.weebly.com/uploads/1/3/1/4/131438616/bekukuvave.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366018/normal_5f8af1cf8e4df.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372373/normal_5f89d00f9de5a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381294/normal_5f8f69ff98346.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367301/normal_5f8777c5505c7.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000bcb4.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000bcb4.bin)
  • https://cdn.shopify.com/s/files/1/0504/1622/2406/files/ofc_splicing_procedure.pdfIn PDF document text
  • https://s3.amazonaws.com/megodipewukitoj/marginal_of_bivariate_normal_distribution.pdfIn PDF document text
  • https://s3.amazonaws.com/votuweroxigezog/biochemistry_book_satyanarayana.pdfIn PDF document text
  • https://s3.amazonaws.com/felasorarabipis/fujowegekeku.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6db13d9f-d0c7-4f48-ba49-3f5b32c415b2/pifonobugudawivuwutiwef.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/50ebb98c-55af-46c8-b017-685589debf9f/stochastic_processes_sheldon_m._ross.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/264be352-6827-49d1-97c3-d4370a21fa5c/8661140530.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 extracted file (font_00_sfnt_off0000bcb4.bin)

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