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/pify?keyword=prime+world+defenders+2+%25D0%25B2%25D0%25B7%25D0%25BB%25D0%25BE%25D0%25BC+android In PDF document text

  • https://cdn-cms.f-static.net/uploads/4377642/normal_5f8cc5d1d6539.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369771/normal_5f8886a7de087.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375206/normal_5f8b304e30c97.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367268/normal_5f9100751c31b.pdfIn PDF document text
  • https://rikisuluwujufa.weebly.com/uploads/1/3/1/4/131452938/66eddc526e.pdfIn PDF document text
  • https://jiwepurojal.weebly.com/uploads/1/3/0/7/130775762/5954b926bf2773.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378175/normal_5f9074dcc3942.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369903/normal_5f880afe8afd4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368763/normal_5f8c77a24f612.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005e6a.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005e6a.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000a37f.bin)
  • https://uploads.strikinglycdn.com/files/b5f02d0b-7aea-409a-985f-83da8c4aab40/latimasazowajavivos.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/40c01af4-d448-44d2-bfd5-bf87b4a4d4c9/tavuvovojobagowopes.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f291635d-a5fe-4ef7-891b-dce400dc87b9/hacker_techniques_tools_and_incident_handling_2nd_edition.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b635eaae-f82a-44d3-8602-0429cfcfd424/gepatezujajupefivit.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0b94c761-cffb-4577-a9bc-48226ddff43a/nebekez.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/641d8a1b-aa6f-44aa-8693-241823e30087/38777655832.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/503ca783-215a-44a0-9e9c-82ae8c857726/35441398271.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9884710f-2062-4e16-acb0-463e6e0f1180/64046374018.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_off00005e6a.bin)

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