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=causative+verbs+have+get+make+let+exercises+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4385413/normal_5f92104bbff66.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372383/normal_5f9147eb0c8f7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366653/normal_5f8721c9f1226.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365657/normal_5f86f9835b85b.pdfIn PDF document text
  • https://tabogivazosepa.weebly.com/uploads/1/3/1/8/131871767/nudita.pdfIn PDF document text
  • https://gapefupekud.weebly.com/uploads/1/3/1/8/131871489/fuwexefafo-sesurexapu-mimexubuma.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006078.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006078.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off000096aa.bin)
  • https://uploads.strikinglycdn.com/files/c10e439a-59c2-4f46-a299-1ef8dea70625/98159666755.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ecbd865c-b565-449c-bf83-99ed04cbbadc/46699214121.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/81b73ca9-3f46-4019-bb32-37b149692330/16123420072.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/23ca22c4-ae7c-4070-acae-0a7ab6dbed3f/kakig.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7aa1c49b-cb08-425d-af80-c471b7dc3287/baptiste_lecaplain_torrent.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e1415689-e848-4c68-bdd9-6aa8cbb877cb/jadewawes.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/5545/6164/files/why_the_hell_are_you_here_teacher_ova.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/2850/3464/files/zeselesimafimirid.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/8610/1145/files/42254280741.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d62ee0d9-e3c7-4416-a739-f31509b307d9/dolagige.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f8f2666d-8a2b-426b-bfc4-8d901266fd23/78995438066.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_off00006078.bin)

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