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/strik?keyword=2+digit+by+1+digit+division+worksheets+without+remainders In PDF document text

  • https://cdn-cms.f-static.net/uploads/4375708/normal_5f8ca6b50b406.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375095/normal_5f8cb4fda1e07.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374520/normal_5f8cb5534779a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366984/normal_5f8ad352ecbbb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366050/normal_5f870bceee975.pdfIn PDF document text
  • https://gewosawoma.weebly.com/uploads/1/3/0/7/130739201/subokamudotoker.pdfIn PDF document text
  • https://fanavepuru.weebly.com/uploads/1/3/1/8/131871984/waxugozukidu.pdfIn PDF document text
  • https://tarirubawapub.weebly.com/uploads/1/3/1/6/131606173/fuxiziwixuwerorux.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366042/normal_5f89f807b2c8e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366047/normal_5f8700fce957a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367017/normal_5f8cb1adc9c44.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374013/normal_5f8b0bf152594.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375894/normal_5f8c0570a0a5c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366646/normal_5f8760db84288.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366384/normal_5f872cdd75a24.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366017/normal_5f886324e9a58.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0480/6931/2669/files/vuwazileledomadoboxada.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0488/4080/2469/files/51349721328.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0459/0433/0906/files/80264272189.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/63fd1533-bd25-4d81-a9de-a5f17d11b53d/fetujubipewakopufunugunix.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f34415ce-081e-4e15-8c6c-33fbd371a018/novakid_village_coordinates.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f6f09c46-ef49-4ee2-9d03-daeb3d30334e/vodis.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/72969bff-6c5d-49ad-bec8-ec449e643d01/jaxidupunuwelazunobaru.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ece05b4a-b49d-4161-8a6a-e41a6d9aa90b/17747204269.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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