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/aws?keyword=ascii+code+extended+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4380531/normal_5f8abdb55df09.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4408319/normal_5f9cf0116a89f.pdfIn PDF document text
  • https://papunagaku.weebly.com/uploads/1/3/1/3/131384156/xidulugetewejik.pdfIn PDF document text
  • https://turomanusogagi.weebly.com/uploads/1/3/1/4/131453559/b9c1ee20ef8.pdfIn PDF document text
  • https://fekudumubaf.weebly.com/uploads/1/3/2/6/132681201/tomefibejoguzipif.pdfIn PDF document text
  • https://sevanilab.weebly.com/uploads/1/3/1/4/131437268/poxob.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4404964/normal_5f992ae6c35fa.pdfIn PDF document text
  • https://tuvomirunasoz.weebly.com/uploads/1/3/4/3/134324776/falerew.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380695/normal_5f8b97525c9e4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368748/normal_5f9da571495cf.pdfIn PDF document text
  • http://fontawesome.iohttp://fontawesome.io/license/In extracted file (font_00_sfnt_off00008cc2.bin)
  • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off000094ec.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off000094ec.bin)
  • http://www.thdl.org/http://www.thdl.org/TibetanIn extracted file (font_02_sfnt_off0000a5a5.bin)
  • https://cdn.shopify.com/s/files/1/0484/5286/2113/files/multiplying_scientific_notation_worksheets.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8bd9496c-08ce-4b8b-84fe-2c16741be2a8/jenojedavoxinaloxibufux.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/0313/3090/files/butterball_electric_turkey_fryer_manual.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0508/4938/2598/files/weather_northampton_ma_radar.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1bdedad9-26cd-42ef-9701-234ffe471733/le_bon_la_brute_et_le_mordecai.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_01_sfnt_off000094ec.bin)
  • http://www.gnu.org/licenses/In extracted file (font_02_sfnt_off0000a5a5.bin)
  • http://www.gnu.org/copyleft/gpl.htmlTibetanIn extracted file (font_02_sfnt_off0000a5a5.bin)

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