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/pify?keyword=transformation+of+sentences+pdf+bangla In PDF document text

  • https://vafumigoku.weebly.com/uploads/1/3/1/3/131384305/bezodagupu_nomamepo_kagexagojo_bikafusixer.pdfIn PDF document text
  • https://tubenuluni.weebly.com/uploads/1/3/1/4/131437864/tiziwel_supixud.pdfIn PDF document text
  • https://folanejo.weebly.com/uploads/1/3/0/7/130776558/molojikipe_gapan_jutorowatuba.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371266/normal_5f8f730d6f10d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372085/normal_5f8a76a02fe34.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367277/normal_5f8dd61bc0f8c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374196/normal_5f8a11135d648.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379626/normal_5f8ce81028744.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365547/normal_5f90f3ef2c974.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382407/normal_5f8d8d3667fba.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370989/normal_5f8ee716d95f7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370530/normal_5f8e9611dbf96.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/gupuso/93872891069.pdfIn PDF document text
  • https://s3.amazonaws.com/wonoti/tuberculous_spondylitis.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0222b131-39cf-430b-b184-c7d1926a2a1b/47025877926.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/51b47226-d7a6-4678-9a19-52ab95322a6a/88043004219.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0439/1731/2152/files/29186642616.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/2743/0059/files/50066693408.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 PDF document text
  • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
  • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

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