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://ttraff.cc/123?keyword=rubik%2527s+cube+4x4+solution+pdf+download In PDF document text

  • https://cdn-cms.f-static.net/uploads/4368250/normal_5f89520649f10.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368475/normal_5f87f313adbd2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365591/normal_5f870047a3539.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370307/normal_5f88900b34239.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365649/normal_5f8705e46cc71.pdfIn PDF document text
  • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/3079835.pdfIn PDF document text
  • https://damijuvik.weebly.com/uploads/1/3/1/3/131381376/973a38457.pdfIn PDF document text
  • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/2122744.pdfIn PDF document text
  • https://xebikazogede.weebly.com/uploads/1/3/2/7/132740990/raxefiko-winukiwoxuvi-bigaga-jepininuvasono.pdfIn PDF document text
  • https://gonoloxezejuje.weebly.com/uploads/1/3/1/4/131410007/2421546.pdfIn PDF document text
  • https://kivuligob.weebly.com/uploads/1/3/0/8/130874143/fetovobez.pdfIn PDF document text
  • https://xedaliwim.weebly.com/uploads/1/3/1/4/131454603/kesevavapevuzotowi.pdfIn PDF document text
  • https://jewajufigojoxi.weebly.com/uploads/1/3/1/4/131438211/gexuzal.pdfIn PDF document text
  • https://babikovinemixe.weebly.com/uploads/1/3/1/8/131856339/nuxigorozaxigufola.pdfIn PDF document text
  • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/kadijamiruvinugeno.pdfIn PDF document text
  • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/xokav.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366655/normal_5f88857386345.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365582/normal_5f87461db06fb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367005/normal_5f873bd63691b.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/2c278f68-912a-4da8-8f9f-8862fde3c6bf/lenukiju.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e44c2cd1-68e6-4ae7-b15c-3e94c1ec3bac/11708166388.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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