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.
• 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/aws?keyword=benzenoid+compounds+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4373004/normal_5f8de68d62eba.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370278/normal_5f8bbd2f35942.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366022/normal_5f8733d98b665.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373509/normal_5f952793e98d0.pdfIn PDF document text
  • https://gejatovuri.weebly.com/uploads/1/3/1/4/131406669/vawokonufelo.pdfIn PDF document text
  • https://bajumavo.weebly.com/uploads/1/3/4/4/134486103/xurukukiwosibun-mowamuguxa.pdfIn PDF document text
  • https://biwugina.weebly.com/uploads/1/3/1/1/131163984/8319257.pdfIn PDF document text
  • https://zukamukenipebo.weebly.com/uploads/1/3/1/3/131380388/jekobazamisel.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000067a1.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000067a1.bin)
  • https://uploads.strikinglycdn.com/files/3e8dea84-b9f8-488b-8d8f-7e4c5da5dc2c/81341089735.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ff59b36d-1614-4708-8faa-97032503ca35/zikowotujaxedi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a00b4836-91a4-42c3-9325-1debaa008975/ruzitufikejemezusux.pdfIn PDF document text
  • https://s3.amazonaws.com/mefadedosuw/41786757696.pdfIn PDF document text
  • https://s3.amazonaws.com/pazifetanegapu/botejuvivozesulo.pdfIn PDF document text
  • https://s3.amazonaws.com/memul/the_way_i_am_eminem_book.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/1484/8671/files/super_saiyan_1-1000.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/9661/9193/files/wortschatz_b2_deutsch_telc.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/2702/5050/files/sock_monkey_hat_for_babies.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/2469/7509/files/zuninudeguwozupexixi.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/9818/6937/files/zisabufutakopiwadirusu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/4361/8467/files/aa_meetings_westchester_il.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0268/7529/7986/files/87870933100.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_off000067a1.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off00009d2e.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off00009d2e.bin)

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