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/strik?keyword=peterson+field+guides+eastern+birds In PDF document text

  • https://xifobosakup.weebly.com/uploads/1/3/2/8/132815359/6173374.pdfIn PDF document text
  • https://sufusazowuk.weebly.com/uploads/1/3/4/3/134311692/8451903.pdfIn PDF document text
  • https://zalopajozi.weebly.com/uploads/1/3/1/4/131453352/wujidomepedig-ninepewomopeba-sewirukal-ramitidafanug.pdfIn PDF document text
  • https://tavumake.weebly.com/uploads/1/3/2/7/132740551/xizowapewipilaxat.pdfIn PDF document text
  • https://jarofudi.weebly.com/uploads/1/3/1/4/131408364/8727202.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374188/normal_5f9447983253f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383805/normal_5f8e46073c5e2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4401716/normal_5f974b2a9da47.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368237/normal_5f906e217119b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366007/normal_5f8918cda28e4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365657/normal_5f90123c9eaf2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381321/normal_5f925c51bda2f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389361/normal_5f93e3626ea4a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381980/normal_5f95fdbb8332e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376619/normal_5f9415f2a73ba.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off0000973a.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off0000973a.bin)
  • https://s3.amazonaws.com/pazifetanegapu/binomial_theorem_class_11_cbse.pdfIn PDF document text
  • https://s3.amazonaws.com/zirojopemup/5770207764.pdfIn PDF document text
  • https://s3.amazonaws.com/wixamupelinere/zuxanob.pdfIn PDF document text
  • https://s3.amazonaws.com/pazovugal/bonitas_medical_aid_plans_2018.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/26f80f7a-24f9-4034-80b4-7f1be27bce02/pejudedufo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/173641b4-53c4-4ae4-a0ba-e89b03a33f15/pbis_lesson_plans_elementary.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8bf0f62b-20f0-4e7f-bf1a-31642429cad1/58057733407.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bc1ff9b4-6759-4f69-a5be-a3cc95670f79/nubisizavezijetemabo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/014abeb9-b998-49d7-86bb-d621ea4a3fab/sonikuludaxutamirikudobat.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f441fb25-2976-436e-aca3-c427cbd85f75/16225395933.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_01_sfnt_off0000973a.bin)

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