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.
• Travel-support phone-number stuffing scam high SE_TRAVEL_SUPPORT_PHONE_SCAM
  Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
• 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.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• 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/wb?keyword=android%20studio%20latest%20version%20pdf In PDF document text

  • https://jarapitoxedomel.weebly.com/uploads/1/3/1/4/131437170/ee78599d49.pdfIn PDF document text
  • https://bizavurodetilu.weebly.com/uploads/1/3/4/3/134391156/jaxogikisopib.pdfIn PDF document text
  • https://vururera.weebly.com/uploads/1/3/4/4/134493513/218c348.pdfIn PDF document text
  • https://nuzaguwimera.weebly.com/uploads/1/3/4/4/134492670/bakejufupuxizurov.pdfIn PDF document text
  • https://mumixopid.weebly.com/uploads/1/3/1/8/131872042/ab73ef5f44c6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4391024/normal_5f914c7b4211d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365598/normal_5f89c40360634.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372987/normal_5f8af98738eee.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368237/normal_5f8d19d78fbe4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369174/normal_5f8c6c865a430.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377109/normal_5f8be46272767.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374859/normal_5f918d4046c41.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375207/normal_5f8b64f64cdac.pdfIn PDF document text
  • https://s3.amazonaws.com/julaxel/27168532469.pdfIn PDF document text
  • https://s3.amazonaws.com/pazifetanegapu/unix_shell_script_tutorial_for_free.pdfIn PDF document text
  • https://s3.amazonaws.com/sazixipame/absenteeism_introduction.pdfIn PDF document text
  • https://s3.amazonaws.com/mamibis/xinutogelido.pdfIn PDF document text
  • https://s3.amazonaws.com/jofunozuzof/the_skilled_helper_a_client-_centred_approach.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006d93.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006d93.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000a2db.bin)
  • https://uploads.strikinglycdn.com/files/d3761acb-2f75-41fb-9319-8303d591b32f/66993263289.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/6233/5919/files/wukokakunumokopupa.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/4584/6168/files/how_to_program_prestige_car_alarm_remote.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_off00006d93.bin)

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