Malicious PDF — malware analysis report

Heuristics 4

• 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 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=search+engine+documentation+pdf In PDF document text

  • https://site-1039929.mozfiles.com/files/1039929/47024110822.pdfIn PDF document text
  • https://site-1040135.mozfiles.com/files/1040135/liwuturofajadafuzezo.pdfIn PDF document text
  • https://site-1036971.mozfiles.com/files/1036971/1843501426.pdfIn PDF document text
  • https://site-1039514.mozfiles.com/files/1039514/pamixogul.pdfIn PDF document text
  • https://site-1048265.mozfiles.com/files/1048265/padavuk.pdfIn PDF document text
  • https://site-1043491.mozfiles.com/files/1043491/63041432234.pdfIn PDF document text
  • https://site-1036876.mozfiles.com/files/1036876/8605984645.pdfIn PDF document text
  • https://site-1042824.mozfiles.com/files/1042824/71074924781.pdfIn PDF document text
  • https://site-1040347.mozfiles.com/files/1040347/dawapujozigubujibudoraze.pdfIn PDF document text
  • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/5d6f2da.pdfIn PDF document text
  • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/3355978.pdfIn PDF document text
  • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/jolon_koxuzozudanik_makilitinami.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/732cf600-b444-44fb-a5ae-bcf38e5ed05b/sanerarozaweligij.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b0e61e62-f4b2-4798-b22b-0ee390feef71/12544931363.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b3194ef7-72bb-4dfe-a67c-0adeed247669/52420012627.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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