Malicious PDF — malware analysis report

Heuristics 6

• 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
• 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/123?keyword=unofficial+transcript+suffolk+university In PDF document text

  • https://jewadasin.weebly.com/uploads/1/3/4/6/134604584/b342457459886ae.pdfIn PDF document text
  • https://zexaloguf.weebly.com/uploads/1/3/4/5/134576330/909081.pdfIn PDF document text
  • https://tisatazufewuvo.weebly.com/uploads/1/3/1/1/131163687/sukojiz_leludebasitov_riwatexopixo_joteligaj.pdfIn PDF document text
  • https://buzapakamewogu.weebly.com/uploads/1/3/4/3/134366326/0f6e6ef.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369504/normal_5f8a12f6a3ffb.pdfIn PDF document text
  • https://luvupomadimudux.weebly.com/uploads/1/3/4/3/134350134/gelorapogomimab_fomebekese_funirajedo_mojijo.pdfIn PDF document text
  • https://lorujuxivole.weebly.com/uploads/1/3/4/5/134595667/1912824.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/272ab89a-df82-4e38-9d31-59ff9550d326/vegodal.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/25e06a57-12e2-4583-9455-37b0edd5f58f/90780104516.pdfIn PDF document text
  • https://s3.amazonaws.com/viromibukoleliw/mediumship_classes_online.pdfIn PDF document text
  • https://s3.amazonaws.com/xanebavifamopez/gmat_exam_sample.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5f6f8633-e61a-4bac-a0d9-7c4ae6dda4e4/repase.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1ab5860f-732f-499c-8a5c-72d5f558126d/custom_kanji_practice_sheets.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
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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