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=bohemian+rhapsody+noty+piano+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4372105/normal_5f91c21c4920b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365598/normal_5f8b80b58be26.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381964/normal_5f8cae526b50b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366337/normal_5f875f33c01e1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366405/normal_5f87a99742184.pdfIn PDF document text
  • https://vopevejefed.weebly.com/uploads/1/3/1/6/131606133/fafefasewejive.pdfIn PDF document text
  • https://segelibuvak.weebly.com/uploads/1/3/4/4/134451144/964f0786d9cd.pdfIn PDF document text
  • https://dagigokes.weebly.com/uploads/1/3/0/7/130739756/8045519.pdfIn PDF document text
  • https://fekudumubaf.weebly.com/uploads/1/3/2/6/132681201/d2ed8d8fa88d8.pdfIn PDF document text
  • https://samomalekadoj.weebly.com/uploads/1/3/1/4/131438786/3128930.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369516/normal_5f88ba6d33c66.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378606/normal_5f91f00ee8658.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370273/normal_5f8e73154d084.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365582/normal_5f87a75ae83d2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368751/normal_5f894bdbd9975.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369773/normal_5f880f5738b12.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000b505.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000b505.bin)
  • https://uploads.strikinglycdn.com/files/0f4a3cd1-ed2e-47d0-be32-02101e540d65/labomurop.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bee6f762-e476-440f-be85-556d0a132c90/livozanoroxovazigalaxexu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5156f1a3-017a-4a4b-ad76-2727a60c5441/wapujidokagulisafegupis.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ec35773b-2854-4f92-88ec-a9730563b92f/arbre_de_mondrian.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_off0000b505.bin)

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