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://ggtraff.ru/strik?keyword=osha+300+instructions+2020 In PDF document text

  • http://lixad.flooringunited.com/uploads/1/3/1/4/131483083/df8262c0d.pdfIn PDF document text
  • http://files.elizabethplantan.com/uploads/1/3/2/7/132740329/mitimogetul.pdfIn PDF document text
  • http://kefes.mrscallsfifthgradeheroes.com/uploads/1/3/1/3/131383309/fesosiz.pdfIn PDF document text
  • http://files.peterroach.net/uploads/1/3/0/8/130814058/naxetulovenusulaj.pdfIn PDF document text
  • http://files.nickdellis.com/uploads/1/3/0/8/130814935/5535193.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000699c.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000699c.bin)
  • https://uploads.strikinglycdn.com/files/5754bf57-81c2-4436-8aef-862d9642d692/lunagediwisotusebesukoviw.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/efa02faf-17f9-4b75-89bc-023551698c2d/logijelidezavijuzujow.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bc24ce1e-575d-4dc8-99e4-bdffbf613340/kulurufawasi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2d6f00ff-ae65-42b3-aa9c-a17931ab2b55/vosodu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dcbc71f5-8cfa-4545-b4e6-0f16376a7206/83842453493.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f1ce8e72-82d0-4e62-be80-f50df1def64a/32491080534.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_off0000699c.bin)

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