Malicious PDF — malware analysis report

Heuristics 5

• 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.
• MFA / one-time-code harvesting lure high SE_MFA_LURE
  Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
• 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://traffking.ru/aws?keyword=guide+to+networking+essentials+answers In PDF document text

  • https://vipapesad.weebly.com/uploads/1/3/4/3/134369303/82f5ea4617da.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377125/normal_5f8a61343325c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366659/normal_5f875a8fd63e1.pdfIn PDF document text
  • https://tifalexax.weebly.com/uploads/1/3/4/4/134471923/1317b073de.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384046/normal_5f9fd1eeeb6d8.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://s3.amazonaws.com/xovajukoxin/english_test_for_6th_grade.pdfIn PDF document text
  • https://tidobumuwi.files.wordpress.com/2020/11/zonikadizaduxosovurupube.pdfIn PDF document text
  • https://s3.amazonaws.com/gotenukevepunin/carter_wo_carburetor_manual.pdfIn PDF document text
  • https://vivader.files.wordpress.com/2020/11/56263016947.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/18d6b730-cf4c-4c5a-95e1-1593a3dd1b9b/nipasokokaxofez.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/15cda44f-6452-4b1b-894d-f81b836e8d39/pto_generator_for_sale_uk.pdfIn PDF document text
  • https://fimalul.files.wordpress.com/2020/11/xenikefeg.pdfIn PDF document text
  • https://jopijetiza.files.wordpress.com/2020/11/worifimijuj.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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