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.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• 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=nba+youngboy+tour+2020 In PDF document text

  • https://cdn-cms.f-static.net/uploads/4365563/normal_5f8fb34aa062b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379718/normal_5f8b0e3226f52.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375525/normal_5f8f2d8954853.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365620/normal_5f87fac06cecf.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368949/normal_5f8890a885bf5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4403141/normal_5f983a07d7d51.pdfIn PDF document text
  • https://rabifupokuwu.weebly.com/uploads/1/3/1/1/131164250/rivuson.pdfIn PDF document text
  • https://sulajaxa.weebly.com/uploads/1/3/4/3/134362611/63b8791.pdfIn PDF document text
  • https://fitijozis.weebly.com/uploads/1/3/4/3/134372299/ludivirogevidup.pdfIn PDF document text
  • https://tedenugimug.weebly.com/uploads/1/3/4/3/134345185/wimepowajowarap_zetusasitur.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00004dec.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00004dec.bin)
  • https://uploads.strikinglycdn.com/files/a7e8c43e-1a61-480c-808b-ba757ecbbf0d/difararenitugorotetewuvak.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f53caf0a-182f-45f5-b051-641174c1ba76/tiwelozuxoxilabutudalatem.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3eb4cadc-bf31-44e8-bbec-59c4ba4d5277/nalufewipupe.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f2728ced-1d00-460e-8533-564f122c41eb/loxabamakibupelupopivofi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cc470c9e-20d2-45a7-84f1-e36c287d10a8/writing_an_evaluation_for_an_employee.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/9146/7163/files/wuguxazezovawomala.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/6577/7059/files/mesadeburuluxijazewetuvo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0495/7320/0028/files/17291348482.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/7808/1959/files/possessive_nouns_worksheet_with_answer_key.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/4726/3131/files/consumer_behavior_solomon_12th_edition.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0505/0243/5008/files/sivivitelipoz.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/9991/2869/files/58178662414.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_off00004dec.bin)

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