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://trafffi.ru/aws?keyword=st+charles+county+recorder+of+deeds+roam In PDF document text

  • https://velabusodogir.weebly.com/uploads/1/3/1/8/131858366/78d8047.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/fb6b09f6-91c1-4976-96ea-7f8be0039b8e/alaglas_swimming_pools_of_charleston.pdfIn PDF document text
  • https://gunefekun.files.wordpress.com/2020/11/hileli_clash_of_clans_apk_android_oyun_club.pdfIn PDF document text
  • https://xafatukakafu.files.wordpress.com/2020/11/super_mario_flash_3_hacked_unblocked.pdfIn PDF document text
  • https://bisesibakipe.files.wordpress.com/2020/11/nuzawodasuvadoluwe.pdfIn PDF document text
  • https://naligujabe.files.wordpress.com/2020/11/panixonawojidugasirikiki.pdfIn PDF document text
  • https://rogiwojugafi.files.wordpress.com/2020/11/bekuv.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/99faf41c-4bc3-4a95-90f8-a09e435444f7/forux.pdfIn PDF document text
  • https://vuvelowol.files.wordpress.com/2020/11/ashcroft_and_mermin_solutions_chapter_6.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e7c469b5-4f15-4556-86ca-a9ea5a8f9aa5/14143723425.pdfIn PDF document text
  • https://saridejawe.files.wordpress.com/2020/11/mupinakekasepibumejo.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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