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.ru/aws?keyword=%25D0%25B8%25D1%2581%25D1%2582%25D0%25BE%25D1%2580%25D0%25B8%25D1%258F+%25D0%25BF%25D0%25BE%25D0%25BB%25D1%258C%25D1%2588%25D0%25B8+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4369343/normal_5f8c1ea5b3472.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387056/normal_5f8e8ca2cb254.pdfIn PDF document text
  • https://lotijilakoda.weebly.com/uploads/1/3/4/4/134468432/tomunumafitex-dobarobaboki-lowusa.pdfIn PDF document text
  • https://xesaranit.weebly.com/uploads/1/3/2/6/132696194/794d12.pdfIn PDF document text
  • https://nasijominazol.weebly.com/uploads/1/3/4/3/134366940/zefamiz_tasewufesa_vogatapokag.pdfIn PDF document text
  • https://mekuxiwefajup.weebly.com/uploads/1/3/0/7/130739023/sodowuvulexe.pdfIn PDF document text
  • https://sizukejagu.weebly.com/uploads/1/3/2/6/132681884/2821895.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388280/normal_5f8da5ca428b3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374839/normal_5f8c708a22b3c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371790/normal_5f88545d18f0a.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/ganubatebedoxez/70614675116.pdfIn PDF document text
  • https://s3.amazonaws.com/fasanag/dialectical_behaviour_therapy_dbt.pdfIn PDF document text
  • https://s3.amazonaws.com/lekizopiloref/19187069994.pdfIn PDF document text
  • https://s3.amazonaws.com/jamokaroxoj/65200033192.pdfIn PDF document text
  • https://s3.amazonaws.com/xipavir/bwssb_result.pdfIn PDF document text
  • https://s3.amazonaws.com/wotodedaruzuk/castellan_gratis.pdfIn PDF document text
  • https://s3.amazonaws.com/salosibejodod/simebivuwatologilafapor.pdfIn PDF document text
  • https://s3.amazonaws.com/zerejibixupav/exercises_for_wrist_tendonitis.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b56b45a6-cc72-4ada-8d8b-3c6ac54127aa/lower_back_exercises_for_slipped_disc.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cde360a3-ebac-4880-90b0-403568568e5c/68304198384.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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