Malicious PDF — malware analysis report

Heuristics 7

• 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.
• PDF carries website-builder CDN document link farm medium PDF_CDN_PDF_LINK_FARM
  PDF contains many clickable PDF links parked on website-builder CDNs or simple download gateways together with visible ebook, manual, or download lure text. This matches generated SEO document carriers used to route users through untrusted link/download chains; the PDF itself is an inert link carrier.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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.cc/123?keyword=where%2527s+my+water+2+mod+apk+1.6.1 In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366044/normal_5f880c90c1b04.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369774/normal_5f8882cf5e848.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366652/normal_5f8770125a047.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365634/normal_5f8701147343b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366661/normal_5f883f2435de4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372104/normal_5f89382178ee0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369648/normal_5f890e771f7c6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367305/normal_5f88b8583524b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365525/normal_5f897b9cda5a0.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off000073a4.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off000073a4.bin)
  • https://cdn.shopify.com/s/files/1/0492/8028/6876/files/siwavudumopebu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/1560/9761/files/en_preparacion_pelicula_completa.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/1512/6685/files/volunteers_job_description.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/9241/3090/files/types_of_chemical_reactions_worksheet_answers.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/6544/1445/files/stainless_steel_scrap_price_per_pound.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0478/9957/4438/files/zexeb.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0476/7793/1686/files/wooden_armor_terraria.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/4377/7433/files/hisense_40h3e_remote_code.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/9834/7958/files/cathay_pacific_cargo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/1949/6355/files/18460703675.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/235f5ce7-30da-466b-a24b-316a32e9db2c/65705283677.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1e995fa4-95dd-4466-b3b5-2153fdaba80a/zinesokodatomep.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7dea82a6-60c9-4f17-8ff8-2a5f3dbd5cc0/vareraruruwugapoxo.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_01_sfnt_off000073a4.bin)

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