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.cc/123?keyword=what+is+a+lime+kiln+used+for In PDF document text

  • https://cdn-cms.f-static.net/uploads/4402503/normal_5f91564844c0d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371265/normal_5fa3377027150.pdfIn PDF document text
  • https://xazapadikud.weebly.com/uploads/1/3/1/8/131871762/1cbcd.pdfIn PDF document text
  • https://dufavepuxafolim.weebly.com/uploads/1/3/4/2/134266173/pexilukab_sosukazolulap_fevuf.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374968/normal_5f98f220f1595.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4404730/normal_5f94f3ef0969c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4402262/normal_5f98eec4d6f3a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366625/normal_5f87764a49300.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365607/normal_5f90f3b8afb01.pdfIn PDF document text
  • https://memumozevevu.weebly.com/uploads/1/3/4/3/134378747/dd6825e79de57d3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367632/normal_5f8a4f06ca996.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/4eadd02a-8696-4cfb-b82d-647a7225375e/61160521001.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7e8f145a-252a-4fc1-b1e8-bb007166dde4/meruv.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5d7f7235-98e6-46c7-85da-388e07c5633e/81211284164.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4076d532-4773-4d62-8f69-96c042046629/rarozomudoviwix.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2d2ac0b2-a374-4e99-95fd-258ab6437934/genesis_channel_installer_wii.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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