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://gettraff.ru/123?keyword=shuttle+vpn+apk+uptodown In PDF document text

  • https://povutepumik.weebly.com/uploads/1/3/2/7/132741486/poralizetugit.pdfIn PDF document text
  • https://nogafuku.weebly.com/uploads/1/3/2/8/132815296/ff5aa.pdfIn PDF document text
  • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/1696278.pdfIn PDF document text
  • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/acc2bcd1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373271/normal_5f88a374b292b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366022/normal_5f88b11b9b8d5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369768/normal_5f8919c644b9b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366055/normal_5f86ff977dd0b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372378/normal_5f8914fb47161.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366976/normal_5f87343fbd5de.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/016117b9-a685-495d-9b8b-bed2ac5827a7/kokixirafojakixul.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/663a6e3b-7893-47c5-b941-2ff4bf2411af/30192912141.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/48b3969a-3730-4d01-a959-adafba2a1216/684974687.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7c67937b-c6a5-4060-a080-655d749e780b/83395690528.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f2b4a36c-7f4f-42cd-8c2b-b469cc25f240/wudanolazakexurux.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/44b93593-ecb1-4882-95dc-960f17db5225/35254191239.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/54ecd1d9-0ba8-4f6a-89c6-23672c77d4e1/nitemilosomuxuz.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8193a12f-1082-4164-9637-b88fd8384a21/tatipumo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a9c95d33-abe8-49c9-b15c-accd8f432f8f/26678604973.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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