Malicious PDF — malware analysis report

Heuristics 5

• 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.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://trafficel.ru/123?keyword=siberian+huskies+for+dummies+pdf PDF link annotation

  • https://mizemetugez.weebly.com/uploads/1/3/4/3/134322353/bagilojezak.pdfIn PDF document text
  • https://kosemarenile.weebly.com/uploads/1/3/4/3/134315061/3982234.pdfIn PDF document text
  • https://pareropifu.weebly.com/uploads/1/3/4/3/134349273/zekiwazapu-kukojufitas-vigadevup-naxene.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381997/normal_5f9010edec2fc.pdfIn PDF document text
  • https://disanelazutiwi.weebly.com/uploads/1/3/4/3/134361230/fcdbd2305ee9542.pdfIn PDF document text
  • https://terarawuterojuz.weebly.com/uploads/1/3/0/7/130739827/893275.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388598/normal_5f963b5cd6130.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/498746b8-4e16-4921-8429-e829a11ee676/jilutaj.pdfIn PDF document text
  • https://s3.amazonaws.com/jedaxopopuko/removewat_download_win_7.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/22f1f093-aa2b-40f9-9658-0058e8ff2365/cnn_10_january_17_2020.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ec0419ab-60b9-4f7a-b740-beda9abe6a4a/36226578517.pdfIn PDF document text
  • https://s3.amazonaws.com/farezelof/afcat_2018_question_paper_with_solution.pdfIn PDF document text
  • https://s3.amazonaws.com/wonoti/mixed_modal_verbs_exercises.pdfIn PDF document text
  • https://s3.amazonaws.com/donake/24097582476.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3193722b-b2e6-4df2-aaad-bb5f4fcd0c66/161595193.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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