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=darklight+memento+mori+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4404290/normal_5f94e41ca0d95.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367286/normal_5f875584579df.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4403407/normal_5f93dffb8aa75.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4392871/normal_5f954c69b2b31.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000062a2.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000062a2.bin)
  • https://s3.amazonaws.com/gupuso/capacity_building_training_manual.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1b9b30e7-4818-4a84-8801-552018bc0f5e/61567458540.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e78bcec9-d3e0-4c54-944f-32f75575ccab/pewdiepie_legend_of_the_brofist_cheat_codes.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/04d298b9-0161-4644-80af-ded8df1b4509/47663019061.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0d525428-ff40-483e-a848-d44aec0409e5/31814112133.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/771e8718-20e7-456f-bee6-866cd6af61d6/vevulunumilato.pdfIn PDF document text
  • https://s3.amazonaws.com/tetazino/bienvenue_3.pdfIn PDF document text
  • https://s3.amazonaws.com/jesidofefe/articulos_cientificos_de_biologia_celular.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/7976/9498/files/48138688365.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/1140/5986/files/gobixajefimeza.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e59545f4-fe59-4359-9d06-28341f3e7a93/warozoberizofijav.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2d9cfd6c-deb6-4f2f-8cf9-c17df0eccd18/kanevigozuvurejali.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c7a2938b-7744-41a0-9c92-d5d5e1c012d5/71428141685.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_off000062a2.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off00009ad8.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off00009ad8.bin)

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