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/pify?keyword=calculadora+de+edad In PDF document text

  • https://junoxavod.weebly.com/uploads/1/3/1/3/131384771/8729837.pdfIn PDF document text
  • https://xasugalepo.weebly.com/uploads/1/3/4/3/134311154/xujanodiw.pdfIn PDF document text
  • https://zidabowejixu.weebly.com/uploads/1/3/1/1/131163559/mumifapijetakiveb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379032/normal_5f900354903c6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368982/normal_5f894fc53f70f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4420019/normal_5f964834f295f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4405639/normal_5f977efb8aa28.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380522/normal_5f921375e31d0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4386620/normal_5f927aef21b95.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4406228/normal_5f93fff73327c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374963/normal_5f8f792c018e7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370294/normal_5f8a93173ecd5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384461/normal_5f8de6c638f70.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385847/normal_5f8e0e0373d7c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367961/normal_5f93dfb7eeb20.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368975/normal_5f8b31d3ae7eb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380210/normal_5f97b11ae9f79.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off00007772.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off00007772.bin)
  • http://www.opentle.orgIn extracted file (font_02_sfnt_off0000873e.bin)
  • https://uploads.strikinglycdn.com/files/8ebd5a70-3ef4-4bde-aa11-ddc2b34fc8d1/pakavowena.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/43993963-28cf-441e-ae83-2c48ceea8efa/rizisowakugobiwuvifesaw.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_01_sfnt_off00007772.bin)
  • http://www.gnu.org/licenses/gpl.htmlIn extracted file (font_02_sfnt_off0000873e.bin)

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