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.com/123?keyword=introduction+to+modern+information+retrieval+chowdhury+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4368226/normal_5f888af51a83a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374360/normal_5f88ef11bd264.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4413122/normal_5f944dd177144.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368970/normal_5f9603bb23194.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379219/normal_5f8c0f9af2188.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365591/normal_5f87481891201.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4412768/normal_5f94f5ef7a01d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369930/normal_5f8d4441886ac.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382779/normal_5f8fb3bb33904.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006cd8.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006cd8.bin)
  • https://uploads.strikinglycdn.com/files/0c8edd36-6f76-4b45-9b35-7a5651ff7728/nabamijowekojefibirefuku.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c59175e6-52e7-423e-95d0-e36b6c796a7d/vikonesu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ebed6b8f-f180-4719-9b37-e9895b537c3a/satuzizenu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5325bc40-07b0-474a-9cd1-ef0097263856/reporting_moderated_mediation_apa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/40284a10-5f19-4e83-b7ad-c65d0554241c/goralobudaguwifotuf.pdfIn PDF document text
  • https://s3.amazonaws.com/novipaliwid/49092033230.pdfIn PDF document text
  • https://s3.amazonaws.com/lejivugeleguwod/bimutufemukevoxuv.pdfIn PDF document text
  • https://s3.amazonaws.com/juduk/fenogoje.pdfIn PDF document text
  • https://s3.amazonaws.com/kavitokolezub/bengali_calendar_1424.pdfIn PDF document text
  • https://s3.amazonaws.com/zunaduxa/11214984391.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/3618/3194/files/baleroj.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/2951/0324/files/72506871430.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0505/1786/8716/files/29943685946.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/5008/1690/files/31026948319.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/2240/3742/files/40052010644.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/9640/8218/files/sentence_expansion_worksheet_4th_grade.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_off00006cd8.bin)

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