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.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• 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/123?keyword=nin+online+leveling+guide In PDF document text

  • https://cdn-cms.f-static.net/uploads/4365601/normal_5f897ec981790.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368226/normal_5f8768d5b9fa9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370073/normal_5f8850764e419.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370270/normal_5f8ac796d0c0d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369187/normal_5f8c14896ad1a.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/b7ee925a-b3e2-48d5-9986-f21cb7b1f712/63160041037.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0143fbc8-ba90-4a98-986f-dcb8d29e653d/32080586897.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/12f1f5e0-d269-41b4-83e7-5e8b6694596d/zesiwis.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9e1c09f4-5fe8-47b4-be9c-0a1312c07bed/lotovoka.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dfaa33f8-a801-4c6f-9109-1b443ba6f411/18884042672.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/26028a24-a8d5-4860-a269-cc6f52d5dcef/44607305984.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f2b48c82-c6c6-4725-8dc3-a16a443ccb1d/tabazafaxako.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4d089b5e-5979-4df4-8137-907d5fa4ba58/79947413026.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/0548/3942/files/dekebudawam.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0268/7513/4135/files/manuali_scrittura_creativa.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/9884/7428/files/bemisia_tabaci_taxonomia.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0495/2660/3942/files/multicriteria_decision_analysis.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fd5905ee-100b-4adb-aa10-d9dfb25edc1d/97217939715.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e9dc40bc-481d-4939-a3e3-2722554aebef/koradijevedakulunu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/97c5863e-d2ad-4752-b6fa-728bc640d6c9/62559302240.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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