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/123?keyword=apk+pure+games+free In PDF document text

  • https://cdn-cms.f-static.net/uploads/4369660/normal_5f87cee35d343.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373999/normal_5f901ee6db927.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366364/normal_5f87382a843d7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4414360/normal_5f95550363ca1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387918/normal_5f8d8f1cd6ced.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382638/normal_5f93d8e8ac37a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369322/normal_5f896bc41b825.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385424/normal_5f94a07d002b8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380887/normal_5f8daf6266d11.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370285/normal_5f889080c3d8a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369143/normal_5f8d7afc01110.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4414175/normal_5f947e6f0aa5d.pdfIn PDF document text
  • https://vafumigoku.weebly.com/uploads/1/3/1/3/131384305/kasemagu_maparoxox.pdfIn PDF document text
  • https://vopevejefed.weebly.com/uploads/1/3/1/6/131606133/dovones_davazulaw_garufivotada.pdfIn PDF document text
  • https://lenimupet.weebly.com/uploads/1/3/4/0/134013040/7abf004d8e15ea.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off00009b38.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off00009b38.bin)
  • https://s3.amazonaws.com/felasorarabipis/lapedivujopisiwovexa.pdfIn PDF document text
  • https://s3.amazonaws.com/dobesogum/cardiovascular_system_quiz.pdfIn PDF document text
  • https://s3.amazonaws.com/fezenur/adjetivos_en_ingles_ejercicios.pdfIn PDF document text
  • https://s3.amazonaws.com/wunupalezozerud/33456157163.pdfIn PDF document text
  • https://s3.amazonaws.com/bezutu/ronafoza.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/3066/6651/files/fufakalosid.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/9440/4008/files/seat_pets_commercial.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0485/0899/3691/files/birobodolite.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_off00009b38.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_04_sfnt_off0000e2c1.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_04_sfnt_off0000e2c1.bin)

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