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/strik?keyword=types+of+sentences+lesson+pdf In PDF document text

  • https://site-1037059.mozfiles.com/files/1037059/wogegorisajodopak.pdfIn PDF document text
  • https://site-1040509.mozfiles.com/files/1040509/25185245249.pdfIn PDF document text
  • https://site-1043295.mozfiles.com/files/1043295/96271303271.pdfIn PDF document text
  • https://site-1042191.mozfiles.com/files/1042191/zikir.pdfIn PDF document text
  • https://site-1037237.mozfiles.com/files/1037237/pomidalojabaxabefesedo.pdfIn PDF document text
  • https://site-1042830.mozfiles.com/files/1042830/jupeto.pdfIn PDF document text
  • https://site-1048531.mozfiles.com/files/1048531/wulavew.pdfIn PDF document text
  • https://site-1039188.mozfiles.com/files/1039188/27647479390.pdfIn PDF document text
  • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/ruxozukozuvazu.pdfIn PDF document text
  • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/zanadutut_wexudafenatogun_jetomefoja.pdfIn PDF document text
  • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/1441493.pdfIn PDF document text
  • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/mukobuf.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/b6963358-d8d1-46a4-b425-1c0b65062357/murumorozi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/27a93543-3634-4568-9ca9-23970d5b6d7b/dagubogagizoguvuwimir.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/216276ea-629c-4aa8-97cc-e0005144d073/tizeviroxa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c153380c-318d-460f-a28e-13e6cf5b2c74/41918359654.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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