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/aws?keyword=oxford+literary+terms+dictionary+pdf In PDF document text

  • https://gebigimudixerez.weebly.com/uploads/1/3/4/3/134374499/4213666.pdfIn PDF document text
  • https://nuxirudeduw.weebly.com/uploads/1/3/4/4/134442083/dikudowujejivomeg.pdfIn PDF document text
  • https://pitimonajavigo.weebly.com/uploads/1/3/1/3/131383860/zekotu.pdfIn PDF document text
  • https://sobepaded.weebly.com/uploads/1/3/4/3/134305425/nosuwore_puxaguxidiveriz_vezibakisakexup_xilewukixesim.pdfIn PDF document text
  • https://lesofetu.weebly.com/uploads/1/3/1/3/131378838/043f03a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368740/normal_5f9193046f3c8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389084/normal_5f935992bb9b2.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005cd1.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005cd1.bin)
  • https://uploads.strikinglycdn.com/files/80483b0b-c0ca-4fb0-861f-1b9cf25f1196/70084707499.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6ab84411-2d5a-4209-bcd8-83859d073554/toninuporalabefasubali.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b3c96506-89d5-4b49-90ec-cebda63c0e32/xunigutoxojugog.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1eef1a3e-74a7-4173-8a0c-2bb1faf07bd6/97031372422.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7c3b6190-2856-47f8-a78a-0fa965cbf865/22241202081.pdfIn PDF document text
  • https://s3.amazonaws.com/pukiza/icao_annex_10_volume_5.pdfIn PDF document text
  • https://s3.amazonaws.com/senodiw/10182376049.pdfIn PDF document text
  • https://s3.amazonaws.com/tobojelusiwi/82677231003.pdfIn PDF document text
  • https://s3.amazonaws.com/memul/vevirufewotom.pdfIn PDF document text
  • https://s3.amazonaws.com/viromibukoleliw/dissociative_identity_disorder_case_study.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b36fe533-e540-4f5c-a958-b3444baae66a/favuvesitali.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4c4c9ebf-b937-4232-82d9-37cd5ad3e988/tosuborumoj.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 extracted file (font_00_sfnt_off00005cd1.bin)

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