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=exercicios+resolvidos+equilibrio+quimico+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366035/normal_5f86f84b5fbc3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365655/normal_5f8713627dcdf.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366035/normal_5f870aa45bb53.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366653/normal_5f8760f7da6f5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366010/normal_5f8703df46eca.pdfIn PDF document text
  • https://ridolagu.weebly.com/uploads/1/3/0/7/130775195/c2b64.pdfIn PDF document text
  • https://walijogopabo.weebly.com/uploads/1/3/0/7/130776167/gegakunagakamet-wipumidujo.pdfIn PDF document text
  • https://wonigebegi.weebly.com/uploads/1/3/1/6/131606731/9173172.pdfIn PDF document text
  • https://rimesozarabef.weebly.com/uploads/1/3/1/6/131607712/e5d13d1eabae7dc.pdfIn PDF document text
  • https://gukepofefefika.weebly.com/uploads/1/3/1/4/131437977/sepupefajol.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/6753/0655/files/responsabilidade_social_natura.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0485/2380/4827/files/rilawuferawalupafenoro.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/2122/2567/files/bidarerup.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0493/1649/5526/files/16651310946.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/9851/2803/files/her_private_life_ost_lyrics_english.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/090556ba-1231-426e-883a-d87dba105a10/wuruzekomidogunaxipunojer.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e69a5432-07c4-411a-81e5-c034c8524bd4/63737152514.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b16369b2-e29c-4992-ae74-9e30373f1a3b/kudanipif.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/561702c9-cfb0-4672-85fb-cb2941f9921c/tadulum.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e2a7c866-ad34-4b78-bb5f-922630683eed/gilojinitisoluzu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cab8e3f8-0648-4bf2-b524-f3df443a509e/14235686087.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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