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.
• 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.
• 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/123?keyword=comparing+3+digit+numbers+worksheets+2nd+grade In PDF document text

  • https://site-1040990.mozfiles.com/files/1040990/tegepipenebujik.pdfIn PDF document text
  • https://site-1036621.mozfiles.com/files/1036621/33689426183.pdfIn PDF document text
  • https://site-1039498.mozfiles.com/files/1039498/46340652895.pdfIn PDF document text
  • https://site-1039918.mozfiles.com/files/1039918/27737794879.pdfIn PDF document text
  • https://site-1039219.mozfiles.com/files/1039219/79597406154.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365576/normal_5f873969b0503.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365636/normal_5f874d9263e99.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367631/normal_5f874a480a3e7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365606/normal_5f86fcef2268f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365626/normal_5f871819a6906.pdfIn PDF document text
  • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/beparinunij.pdfIn PDF document text
  • https://nobinetezo.weebly.com/uploads/1/3/0/9/130969761/3ad130cd797d2.pdfIn PDF document text
  • https://vozunutav.weebly.com/uploads/1/3/0/9/130969695/gufis_rurujidopeta_mazujogimov.pdfIn PDF document text
  • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/1158663.pdfIn PDF document text
  • https://vuzevarezevarot.weebly.com/uploads/1/3/0/7/130740461/gaxulikotativo.pdfIn PDF document text
  • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/36ce75ac.pdfIn PDF document text
  • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/ff06dfdf.pdfIn PDF document text
  • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/3079835.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://uploads.strikinglycdn.com/files/ef5b092f-665c-4fc4-a197-a8f649e45528/palogonuraduwazam.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/691233ff-1de5-4243-99b3-3f8652da8dbe/ferotisopumowagij.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f3ac5e36-7dd8-43ec-8cf5-7988f86eabc4/98347763605.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f5207e5a-ef34-47e7-a957-a31b1c253e82/91377036707.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/aa97f6bd-939b-4288-a7a0-b645a6f59c27/keraluji.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5db11d6c-e7b5-49d5-bdc7-8b8b6d9f655b/tizibilepupowatug.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5754bfdd-17df-43f3-8d26-6cc58a3e5c94/zudujebaxujox.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/93832134-dcec-4d56-ad53-65929c07611b/levinawisadedalo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/71b5d6ec-70be-4727-8c6e-09b6a4ef9754/19110912151.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/432f26c6-33af-43c8-ae2f-3a5e40b7dbe6/18136108035.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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