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=rudin+real+and+complex+analysis+solutions+chapter+10 In PDF document text

  • http://files.cmc-tam.org/uploads/1/3/1/3/131381376/1ac503a.pdfIn PDF document text
  • http://pumoten.goorooglass.com/uploads/1/3/1/4/131407588/5234388.pdfIn PDF document text
  • http://xuvulan.deanparkerfilms.com/uploads/1/3/0/7/130776138/9eda9201.pdfIn PDF document text
  • http://files.seizediem.com/uploads/1/3/1/4/131438741/vewim_gifesimefipotu.pdfIn PDF document text
  • https://site-1036925.mozfiles.com/files/1036925/xuzawi.pdfIn PDF document text
  • https://site-1040896.mozfiles.com/files/1040896/46272733710.pdfIn PDF document text
  • https://site-1037899.mozfiles.com/files/1037899/34052849117.pdfIn PDF document text
  • https://site-1036621.mozfiles.com/files/1036621/tutajivepokapuvomiloj.pdfIn PDF document text
  • https://site-1036835.mozfiles.com/files/1036835/repatodorixovafarafebokuf.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000c90a.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000c90a.bin)
  • https://uploads.strikinglycdn.com/files/b393db54-26b2-422e-a4cf-cf08cd418fbb/54744245888.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/621517c4-aa30-43a0-824f-33509959d62e/26913557995.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/383c654b-fc80-461f-b4cd-ac188da3fe63/kesap.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/db7104d6-53ce-49a3-8f96-79083bb7223c/58084065808.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/19b0f843-8796-4a68-b8e1-6da1c9cea88d/tagubojilowitofulajuxo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e355c5c4-1073-4e2f-a69b-fbfd0511dcca/mexekizazegob.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/098e031f-fd72-44a7-843a-12856726a72c/rexadasigukoriwazomukup.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c2e81294-64cb-499a-ae9b-30baf2c6410a/durulolokuwivi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4ee3132d-bef2-49e1-b179-869891d1a1ac/41537241440.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a5d5ecd6-8138-4656-8747-47dd39cac737/sevel.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_00_sfnt_off0000c90a.bin)

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