Malicious PDF — malware analysis report

Heuristics 4

• 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.
• 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://traffking.ru/aws?keyword=slope+intercept+calculator+graph In PDF document text

  • https://reninifovebomul.weebly.com/uploads/1/3/4/3/134361606/jetupuvazidolem.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4417995/normal_5f9a608fbc7b0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4416128/normal_5fa10a5885c41.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372354/normal_5f996dba951a5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366360/normal_5f872294e49e1.pdfIn PDF document text
  • https://mukozuzaze.weebly.com/uploads/1/3/4/2/134265885/puseveru.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/ec998a54-a422-4a80-a47a-315fb87c9c6e/mice_vs_rats_droppings.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7b620d13-26d5-404e-9cf4-99bf4b4598b8/download_mac_os_high_sierra_iso_free.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/716b158e-a289-4c54-b0c3-105dd090aa0b/carl_sims_guide_stuff_packs.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fa410971-4fce-484c-a55b-6cb87de229fe/88268363893.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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