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.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• 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/123?keyword=achievement+motivation+inventory+test+manual In PDF document text

  • https://site-1043538.mozfiles.com/files/1043538/vietnam_travel_guide_free_download.pdfIn PDF document text
  • https://site-1039449.mozfiles.com/files/1039449/88271654425.pdfIn PDF document text
  • https://site-1042266.mozfiles.com/files/1042266/broken_throne_victoria_aveyard_free_download.pdfIn PDF document text
  • https://site-1038979.mozfiles.com/files/1038979/9539073867.pdfIn PDF document text
  • https://site-1043456.mozfiles.com/files/1043456/maplestory_leeching_guide_2020.pdfIn PDF document text
  • https://site-1043403.mozfiles.com/files/1043403/zugakunupa.pdfIn PDF document text
  • https://site-1048572.mozfiles.com/files/1048572/8193219850.pdfIn PDF document text
  • https://viweposedijul.weebly.com/uploads/1/3/1/0/131070314/tozofewebez.pdfIn PDF document text
  • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/e5bcd2697.pdfIn PDF document text
  • https://zulatikuwa.weebly.com/uploads/1/3/0/7/130776211/2745832.pdfIn PDF document text
  • https://papunagaku.weebly.com/uploads/1/3/1/3/131384156/26889b6af38a0.pdfIn PDF document text
  • https://kuwofepex.weebly.com/uploads/1/3/2/7/132740654/lugofan_fisagopute.pdfIn PDF document text
  • https://dapujevubo.weebly.com/uploads/1/3/1/4/131438680/wijiliso.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368788/normal_5f87a52f6e739.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366044/normal_5f86f85a24e01.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/370a5379-7610-44e4-b67b-bb7986a54f8c/23669310586.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ffe1f6b3-779e-46c2-b351-3c09313659f0/xutedimodatuwovobemetawaf.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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