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/strik?keyword=stick+war+legacy+mod+apk+version+1.5.01 In PDF document text

  • https://cdn-cms.f-static.net/uploads/4367305/normal_5f878298d7880.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367310/normal_5f87adfd07045.pdfIn PDF document text
  • https://vozunutav.weebly.com/uploads/1/3/0/9/130969695/34531.pdfIn PDF document text
  • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/3794757.pdfIn PDF document text
  • https://site-1038565.mozfiles.com/files/1038565/64960883465.pdfIn PDF document text
  • https://site-1039533.mozfiles.com/files/1039533/simibezaj.pdfIn PDF document text
  • https://pivozedotafi.weebly.com/uploads/1/3/1/0/131070355/2531199.pdfIn PDF document text
  • https://dimaxafazeza.weebly.com/uploads/1/3/1/4/131453031/kezedivalo-bolumukejufufik.pdfIn PDF document text
  • https://nasinapalu.weebly.com/uploads/1/3/0/7/130739684/5325927.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/82261060-cb06-42da-b22b-c84663f530d6/44861732585.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8e5c0706-8a82-4627-86cd-a9b1c483eb84/tewomesirituzen.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d9002de2-d3b3-4890-8861-6f8bb65a03a7/garofanekaxobizeril.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/92fbac33-2bbe-4dc3-bf54-d01dbb96afd7/mexejekidovaximuguwa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/43c0c10c-5a40-445b-b374-18f4c7f71be9/36095719676.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1eecaee5-42d3-47cb-80b7-f783731ebf41/68707100897.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c20335f5-739c-4f60-ba14-8b7c8fe1fb06/kupezewetebiwilobojeziri.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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