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://ttraff.me/123?keyword=stay+focused+apk+download In PDF document text

  • https://cdn-cms.f-static.net/uploads/4416939/normal_5f95e72ad95a3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365660/normal_5f87149743c4c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369333/normal_5f884cfa31c21.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365570/normal_5f871239cd925.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373997/normal_5f8bdb126d7c8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378381/normal_5f8fabdcc223e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376869/normal_5f8e00dde0f50.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365541/normal_5f86f86048e8f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368225/normal_5f8eaf3c0d627.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4411219/normal_5f95ffae09e90.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007b6a.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007b6a.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000b083.bin)
  • https://uploads.strikinglycdn.com/files/28a72831-0c13-4ae3-aeda-475e91f1fe52/61138646611.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4251bd17-68c0-43eb-8009-b2f03931c9fe/dapuxokinepobutiwux.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b8c6c7fa-b601-4510-a6f2-01498364dd20/wotukapobakamipalil.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d65ea3af-c17d-48c6-882d-669e4c6950fd/87048345395.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/3151/0690/files/71693590507.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/2439/8528/files/5772240797.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/63c4c11f-951a-4e8a-bf70-4b6daca9a4b2/tigid.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/efa89be2-a6d1-4d2f-b7d8-1bff6600dea5/60585427187.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9b5f4ffc-507e-4342-b34b-9c865ad1c92f/vugemavovibifasowavokugir.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cc50005b-0daa-4cbd-b41c-2b65b23600f9/xiwuwe.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_off00007b6a.bin)

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