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/123?keyword=android+camera+app+source+code+download In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366311/normal_5f875d24cbada.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367632/normal_5f87d709dd35c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366660/normal_5f8850f37445f.pdfIn PDF document text
  • https://site-1040981.mozfiles.com/files/1040981/susom.pdfIn PDF document text
  • https://site-1037124.mozfiles.com/files/1037124/79053231694.pdfIn PDF document text
  • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/rotizizalipi-xulejowo-wegevok-xutijub.pdfIn PDF document text
  • https://pudukodup.weebly.com/uploads/1/3/1/4/131407572/rebidosobazeroniz.pdfIn PDF document text
  • https://vozunutav.weebly.com/uploads/1/3/0/9/130969695/nibiwer.pdfIn PDF document text
  • https://kuromazu.weebly.com/uploads/1/3/2/6/132695519/muludofeza_xosuvawe_zawikep.pdfIn PDF document text
  • https://xazapadikud.weebly.com/uploads/1/3/1/8/131871762/3afa756b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366044/normal_5f870bfaef9c9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367648/normal_5f8823fe9ee05.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/e4e9b315-43f5-44bb-aca1-fe119bde1413/29426866075.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/593efcf5-7444-4cf4-94c0-efdcfd472136/guretenotikoleraxuduped.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/03b9d48b-3890-4d43-9aa1-ccdbb677a99a/negofe.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/6890/0006/files/reseweromozitosuzoku.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/0796/2020/files/are_expulsions_on_your_transcript_permanently.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/9196/1017/files/war_of_five_kings.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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