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://ttraff.link/123?keyword=gta+5+apk%252Bdata+highly+compressed+in+%2528200mb%2529 In PDF document text

  • https://cdn-cms.f-static.net/uploads/4372740/normal_5f88dd1c79af2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371025/normal_5f886ff5f1136.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367624/normal_5f8b2c6d29789.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369796/normal_5f8f63bb48af3.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007182.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007182.bin)
  • https://s3.amazonaws.com/mejawiwomak/cambridge_pet_writing_part_2.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/5867/1015/files/23253858386.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ead4753c-7bec-44aa-a981-e8ede141783c/8371807018.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d83778c4-4f87-4ab1-89cc-1556911eed67/70732110972.pdfIn PDF document text
  • https://s3.amazonaws.com/bezegoluzose/minecraft_tree_houses_videos.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/0375/5684/files/kexetupalaneritubozirug.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0493/4280/8223/files/57305168737.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0493/7252/8799/files/42319742669.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/1527/4147/files/buck_institute_for_education_wikipedia.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/4913/0419/files/kiterixogodideribevo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0505/6846/2504/files/manual_de_chevrolet_aveo_2020_en_espaol.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_off00007182.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off0000ac54.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off0000ac54.bin)

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