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/aws?keyword=atomic+absorption+spectroscopy+applications+pdf In PDF document text

  • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/8347111.pdfIn PDF document text
  • https://zatafepe.weebly.com/uploads/1/3/4/0/134000007/3687045.pdfIn PDF document text
  • https://gutugifowofe.weebly.com/uploads/1/3/1/6/131606479/64d63116e5de221.pdfIn PDF document text
  • https://vixeroniwemeful.weebly.com/uploads/1/3/0/7/130740086/9875764.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380084/normal_5f8b0f48a080d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388067/normal_5f8fb28b0f218.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365552/normal_5f874115a7c97.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374022/normal_5f9142205f22f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387243/normal_5f91ceb947480.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369333/normal_5f8bfcaf22184.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4413966/normal_5f9513bf7afe6.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000b600.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000b600.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000f0e1.bin)
  • https://cdn.shopify.com/s/files/1/0481/4697/2821/files/instagram_download_apk_without_play_store.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/8886/2614/files/dda_naib_tehsildar_syllabus_2020.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0505/2809/2360/files/walopubev.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/6658/0382/files/26803845378.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0479/6579/8556/files/thesis_statement_for_argumentative_essay_on_gun_control.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/8115/7796/files/jonosibavibepoz.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/0243/6512/files/folezobur.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/5916/5849/files/96920018303.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/4157/8399/files/10071584571.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_off0000b600.bin)

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