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/123?keyword=random+rgb+color+java In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366965/normal_5f873c09b4108.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382194/normal_5f92351d250dd.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369782/normal_5f880792da687.pdfIn PDF document text
  • https://pajujetijawu.weebly.com/uploads/1/3/4/3/134334360/3389494.pdfIn PDF document text
  • https://zenovoruzunej.weebly.com/uploads/1/3/4/3/134339910/wokibabakaku-wepumidije-kaxotifa-jubikas.pdfIn PDF document text
  • https://pajedurozibije.weebly.com/uploads/1/3/4/4/134446399/kelofowa-rovomirim.pdfIn PDF document text
  • https://kuvofexe.weebly.com/uploads/1/3/1/1/131163751/3246994.pdfIn PDF document text
  • https://liwobolavus.weebly.com/uploads/1/3/4/1/134131542/fifukomukipegik.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000065de.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000065de.bin)
  • https://uploads.strikinglycdn.com/files/35c5dc77-ee6b-4c50-874d-676cc9d2c97f/genevieve_behrend_visualization.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cb0138c9-15fc-4cf4-8411-b04a5c52879c/2331544354.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/3417/1800/files/55041329358.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/9324/4077/files/26729360485.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cacddb38-e57b-4b54-a0f4-fc69e1d66881/bimugisedabadamuxudevad.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f12e145a-8c46-4a06-adaa-76158fe66780/45796374098.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7e70529a-484e-4df2-9cec-7ca289d6a56f/89549339602.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/013c40cd-8f83-44a7-aa5d-c66df5bfbed5/90724973773.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://dejavu.sourceforge.netIn extracted file (stream_006_off0000a71a.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_006_off0000a71a.bin)
  • http://scripts.sil.org/OFLIn extracted file (font_00_sfnt_off000065de.bin)

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