Malicious PDF — malware analysis report

Heuristics 6

• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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=jaki+skaner+kod%25C3%25B3w+qr+android In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366374/normal_5f8a0de78ddee.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365580/normal_5f875a8e4012c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368758/normal_5f88c2151a3fb.pdfIn PDF document text
  • https://zekuwatifakaxi.weebly.com/uploads/1/3/2/8/132815855/f22c42d172c326.pdfIn PDF document text
  • https://jobubati.weebly.com/uploads/1/3/1/4/131453688/nasow_wovimulatu_geregos.pdfIn PDF document text
  • https://jaserasozupog.weebly.com/uploads/1/3/1/4/131454215/2543267.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/b8adb518-28bf-4c9e-9f44-0275cd286b97/80725404052.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/435f8ab6-5b45-4e42-919f-5eeecf0dcbf7/peduvikegipexusuwilazised.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f59a443f-d4aa-4107-b87a-efe686de7f64/rutezem.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d0b0baeb-d146-44a5-850f-fc2538dce9ad/jawekawemaritu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e2a3df20-ea2c-4533-86e5-5e2ae2b352ae/94456090317.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/6112/5015/files/6341561755.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/7926/2615/files/the_waters_of_babylon_theme.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f161a2d1-06c5-41eb-b5b3-0816b60bd31f/89821593053.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/eb57697b-9a0c-45e9-b379-c7a1bda86aa2/40608326504.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/73b4f2ca-10a9-4928-9c9e-a5b48b6be6c8/norme_ossature_bois.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f50b424b-20cc-4fca-82b6-b1e0812016e5/22260410109.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e377109d-a6d1-4a72-bed3-c1e0bd3faef4/64848347972.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/16e077af-da11-4b86-93d2-0453b00caf5b/89228564901.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/046284c1-71f3-4c4d-8c50-6e96780a98eb/likedobabema.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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