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/aws?keyword=pdf+annotation+app+apple+pencil In PDF document text

  • https://cdn-cms.f-static.net/uploads/4370063/normal_5f9491112baed.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368772/normal_5f9205d9d2f5c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368954/normal_5f94ac5815119.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4413842/normal_5f94180dafb58.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381544/normal_5f8bf89886a7b.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007f49.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007f49.bin)
  • https://s3.amazonaws.com/megelugik/2717585536.pdfIn PDF document text
  • https://s3.amazonaws.com/zonebon/acidity_of_phenols.pdfIn PDF document text
  • https://s3.amazonaws.com/memul/tcc_pesquisa_bibliografica.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/7756/1237/files/reloz.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0494/0994/9863/files/43486958698.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/0213/4180/files/germany_country_profile.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/7125/7241/files/lobut.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/6733/3525/files/download_game_pacific_fleet_mod_apk.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9ce7252d-e7e7-4361-8fe5-a284a4e24725/fisaxipeg.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/190f554a-a2c8-4c65-af3c-9276a86c6392/3516348559.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/83986222-cec5-4c89-bb29-8349c9815a4f/67013254359.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ef0ad9a3-426b-47d1-807e-6ddcda010a2d/rusebezulube.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5c0c9453-4a3e-405d-8c8a-db8fc19ea79b/vususemujexebureru.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a4a1d4ca-c837-4f93-b95b-b0f8624af117/zenukozejedejanitogupe.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/66ce5a78-1128-42a9-8960-1a2a5b7e75af/8114907558.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/75ffc9f5-c11f-4772-92b4-97fa9a6c3a23/25714788662.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1ae02abc-5cf0-4d1f-9265-b7866c8fe0da/64256086456.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/5725/7889/files/t_a_brown_genomes_3.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/0752/7077/files/38456940764.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0505/3815/2133/files/82602598333.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_off00007f49.bin)

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