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://gettraff.ru/123?keyword=shareit+apk+for+android+2.3.4 In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366063/normal_5f86ffe134d03.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366022/normal_5f86fed075ef9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365607/normal_5f8724c270615.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365555/normal_5f86fad34e8b4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366018/normal_5f8711bb7b6a0.pdfIn PDF document text
  • https://site-1039253.mozfiles.com/files/1039253/bolonat.pdfIn PDF document text
  • https://site-1044010.mozfiles.com/files/1044010/mizizuvurefimabumonefatu.pdfIn PDF document text
  • https://site-1039517.mozfiles.com/files/1039517/62603829508.pdfIn PDF document text
  • https://site-1036772.mozfiles.com/files/1036772/71344318102.pdfIn PDF document text
  • https://mupibidegupek.weebly.com/uploads/1/3/0/8/130874042/pofuvejesipixu.pdfIn PDF document text
  • https://tajurasexir.weebly.com/uploads/1/3/1/6/131606020/6897437.pdfIn PDF document text
  • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/roriturosiw.pdfIn PDF document text
  • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/lanadez.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/1979/1268/files/babok_v3_study_guide.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/1353/6426/files/house_of_rising_sun_chords.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0479/1615/5047/files/rit_dye_powder_or_liquid.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/3377/8597/files/im_a_child_of_god_yes_i_am_piano.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0467/9722/6133/files/craigslist_ms_gulf_coast_cars.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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