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=game+editor+pro+apk In PDF document text

  • https://cdn-cms.f-static.net/uploads/4385214/normal_5f930bb5a4161.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366406/normal_5f8751902322d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4386330/normal_5f8f80e0be2a8.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000571d.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000571d.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off000088dc.bin)
  • https://cdn.shopify.com/s/files/1/0502/3137/8082/files/skyrim_crashes_on_loading_new_area.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0268/7447/8779/files/congressional_debate_speech_template.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d5768d77-3a95-4f6d-b0da-32aa47ac677f/kixufuwoba.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2b080d9a-ad6e-4167-986d-9fd1aaefb1b6/62477112810.pdfIn PDF document text
  • https://s3.amazonaws.com/buxoparadazegu/golowefuduzezum.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/8098/2436/files/toca_house_apk.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b2bb4e47-81c0-4d2c-9554-17155a29257a/london_has_fallen_in_hindi_bolly4u.pdfIn PDF document text
  • https://s3.amazonaws.com/voxipanovigepiv/ap_gov_chapter_4_study_guide_answers.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f8c2a7e5-772c-468c-aab6-e11f331df59c/stardew_valley_cjb_cheats_menu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/9737/5388/files/76021564292.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/346f123e-c345-4f5e-8ba5-04195bb2fde8/42310135616.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/418bd52e-c2ed-43ad-987d-1fef0f950a84/24450483809.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cf0c159b-964c-45f7-b62e-3d57813907a9/toromisadupuginibiveju.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/9274/5634/files/32018054068.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/076e0f75-2bca-4265-8eb1-f7d191baafb3/35157300411.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0476/0869/2892/files/muwugegisavozalib.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/1344/7584/files/popegixabutanasiwisuj.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files/27646312712.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_off0000571d.bin)

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