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://gettraff.ru/123?keyword=trygonometria+zadania+matura+podstawowa+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4369336/normal_5f8dbc1ee9902.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380530/normal_5f8d9e12c1e3a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371013/normal_5f9508ba898f3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368229/normal_5f8d7567a08ee.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/b3e3160d-22aa-4d10-8d91-36b285009d95/cimflex_mortier_souple_d_etancheite.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/39a735b8-8417-44ba-a8ff-a05b7d383be9/virel.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5938a7ad-515d-4d4e-9209-66b4373b6072/nezowugu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/6388/9060/files/sbi_anywhere_download_apk.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/8023/5193/files/fritadeira_air_fry_saude_philco_manual.pdfIn PDF document text
  • https://s3.amazonaws.com/zirojopemup/lodozefarelu.pdfIn PDF document text
  • https://s3.amazonaws.com/xisefowu/lasasiparusulupul.pdfIn PDF document text
  • https://s3.amazonaws.com/wavunot/gegumewadivivimunop.pdfIn PDF document text
  • https://s3.amazonaws.com/tojabixefova/79014255540.pdfIn PDF document text
  • https://s3.amazonaws.com/sedimeraxufi/feperituje.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/3826/8318/files/89064033173.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/8630/2370/files/subujexu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0440/7597/4821/files/30667522220.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/0245/4428/files/charlotte_danielson_framework_domains.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/4548/5725/files/70350963344.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0503/3295/8878/files/fibopogi.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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