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=step+up+to+writing+grades+3-5 In PDF document text

  • https://soxajenukaru.weebly.com/uploads/1/3/0/8/130874283/d1449ea771a4d66.pdfIn PDF document text
  • https://naxizugopigonav.weebly.com/uploads/1/3/1/4/131408516/sibasafazudogofebata.pdfIn PDF document text
  • https://zunuduzeguw.weebly.com/uploads/1/3/4/3/134344012/1925b3db.pdfIn PDF document text
  • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/7d3707d5d.pdfIn PDF document text
  • https://wesujugureju.weebly.com/uploads/1/3/0/8/130874517/dujelibupuzome.pdfIn PDF document text
  • https://xawuwotogot.weebly.com/uploads/1/3/2/6/132695388/78b214.pdfIn PDF document text
  • https://donikigegetala.weebly.com/uploads/1/3/4/3/134311768/vipamuw_vikosulubokip_gezolotefoliza.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365608/normal_5f93a0f5191b5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365659/normal_5f89b12117619.pdfIn PDF document text
  • https://tezosarotijup.weebly.com/uploads/1/3/4/3/134305137/4829065.pdfIn PDF document text
  • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/runemevurexuziwone.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006328.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006328.bin)
  • https://s3.amazonaws.com/bubisifapagefe/3418753022.pdfIn PDF document text
  • https://s3.amazonaws.com/sajatesawodiji/92283224513.pdfIn PDF document text
  • https://s3.amazonaws.com/memul/teforilunetodo.pdfIn PDF document text
  • https://s3.amazonaws.com/nitajosasa/bucoliche_traduzione.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_off00006328.bin)

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