Malicious PDF — malware analysis report

Heuristics 6

• 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.
• Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
  Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://veraweno.weebly.com/uploads/1/3/0/7/130739577/pobenirabexu.pdf.
• 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=fortnite+skin+swapper+for+ps4 In PDF document text

  • https://cdn-cms.f-static.net/uploads/4365567/normal_5f8e0c2b59572.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4390052/normal_5f97fa5207692.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380883/normal_5f9be18849454.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370525/normal_5f8dac25a7e41.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4417530/normal_5f9c9d495d84c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381321/normal_5f8e31ebbeb02.pdfIn PDF document text
  • https://veraweno.weebly.com/uploads/1/3/0/7/130739577/pobenirabexu.pdfIn PDF document text
  • https://bizalaso.weebly.com/uploads/1/3/4/4/134443832/wibimewisug_rakejekuta_wijugegon.pdfIn PDF document text
  • https://bewapuvin.weebly.com/uploads/1/3/1/4/131453684/a6fbd90d73.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365607/normal_5f9ac1bf457f2.pdfIn PDF document text
  • https://s3.amazonaws.com/gafedupeba/64542266391.pdfIn PDF document text
  • https://rudofodirofebas.weebly.com/uploads/1/3/0/7/130739781/joguveridivuz.pdfIn PDF document text
  • https://tisatazufewuvo.weebly.com/uploads/1/3/1/1/131163687/vivis_mozirisamewo_xolijex_panulurebu.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off00006157.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off00006157.bin)
  • https://cdn.shopify.com/s/files/1/0506/8629/6243/files/tecumseh_carburetor_parts_diagram.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
  • https://savannah.gnu.org/projects/freefont/In extracted file (font_00_sfnt_off00005163.bin)
  • http://www.gnu.org/licenses/In extracted file (font_00_sfnt_off00005163.bin)
  • http://www.gnu.org/copyleft/gpl.htmlIn extracted file (font_00_sfnt_off00005163.bin)
  • http://scripts.sil.org/OFLIn extracted file (font_01_sfnt_off00006157.bin)

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