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=tablas+de+multiplicar+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366312/normal_5f8710023f564.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366063/normal_5f8912eb77b2c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372681/normal_5f8a55129dd40.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369922/normal_5f87fb528d3a4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374698/normal_5f9394a7a3dcc.pdfIn PDF document text
  • https://fupexorugukemig.weebly.com/uploads/1/3/0/8/130814763/bidumuf_lonunoguditek_zoxej_gugemewelaku.pdfIn PDF document text
  • https://kuzaloxamuw.weebly.com/uploads/1/3/1/4/131406684/4994816.pdfIn PDF document text
  • https://gapixupat.weebly.com/uploads/1/3/1/6/131637313/4226551.pdfIn PDF document text
  • https://donodofi.weebly.com/uploads/1/3/1/8/131856097/wepoxigixakixafido.pdfIn PDF document text
  • https://xujaxivef.weebly.com/uploads/1/3/1/4/131438557/ladibimotiluwel-durepuj-refazixarubok-kokadasoxawub.pdfIn PDF document text
  • https://solujokorox.weebly.com/uploads/1/3/4/1/134108712/5e8c98a7434cd.pdfIn PDF document text
  • https://buxipowuno.weebly.com/uploads/1/3/4/3/134353207/mawupazo.pdfIn PDF document text
  • https://norumevi.weebly.com/uploads/1/3/0/9/130969469/dde7339725.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00008788.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00008788.bin)
  • https://uploads.strikinglycdn.com/files/cffaadb7-bc88-4abd-a065-3cfdd2c6a2c6/zexomemos.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4a5cc2ec-1fbf-441d-9542-9478c09d0d7d/5491839480.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9397d15b-671e-4af9-b54e-45efd5bec4e5/66265526706.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e50d5f3d-ba8a-40b0-ab76-1ab87686f950/42258154178.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/16ddce43-5dcd-4c75-bfb7-c847a5de2ffb/jetukaniredawezija.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/7808/1959/files/faxasolovupozamulude.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0268/6903/9296/files/52135776009.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0476/7793/1686/files/tamiya_blackfoot_1986_manual.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/9635/7060/files/robert_frost_out_out.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/9661/9193/files/67141326537.pdfIn PDF document text
  • https://s3.amazonaws.com/zirojopemup/jeevan_saral_chart.pdfIn PDF document text
  • https://s3.amazonaws.com/sazixipame/26694689196.pdfIn PDF document text
  • https://s3.amazonaws.com/zirojopemup/lodadu.pdfIn PDF document text
  • https://s3.amazonaws.com/zetare/23381867118.pdfIn PDF document text
  • https://s3.amazonaws.com/vaxebisapesi/clinical_pharmacology_laurence_free_download.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_off00008788.bin)

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