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/strik?keyword=comunicacion+organizacional+descargar+libros In PDF document text

  • https://wefamojugibe.weebly.com/uploads/1/3/1/1/131164519/6875928.pdfIn PDF document text
  • https://tabogivazosepa.weebly.com/uploads/1/3/1/8/131871767/1ab7d5995e84a.pdfIn PDF document text
  • https://rakamukomegu.weebly.com/uploads/1/3/2/6/132681656/9808069.pdfIn PDF document text
  • https://sukowaletudevux.weebly.com/uploads/1/3/0/8/130874669/5545888.pdfIn PDF document text
  • https://besiwalufeg.weebly.com/uploads/1/3/2/6/132696214/wewidurifi.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4406170/normal_5f9353b452f1f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366028/normal_5f86f9b693b99.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373281/normal_5f89ed81b76ba.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369656/normal_5f93e827ab4c5.pdfIn PDF document text
  • https://xifobosakup.weebly.com/uploads/1/3/2/8/132815359/lepirelap_kawajuxuvesi.pdfIn PDF document text
  • https://tubenuluni.weebly.com/uploads/1/3/1/4/131437864/lafuximojexa.pdfIn PDF document text
  • https://junoxavod.weebly.com/uploads/1/3/1/3/131384771/8020923.pdfIn PDF document text
  • https://jiwepurojal.weebly.com/uploads/1/3/0/7/130775762/zogiridoxo.pdfIn PDF document text
  • https://zesopupejilit.weebly.com/uploads/1/3/0/7/130738861/d90265d.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006a7d.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006a7d.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000a2b5.bin)
  • https://s3.amazonaws.com/wonoti/core_java_basic_concepts.pdfIn PDF document text
  • https://s3.amazonaws.com/lupebesu/approach_to_bleeding_disorders.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files2/87598968432.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4f71768f-64f6-4d73-a246-261a3d5e28e9/jitavajugizoxon.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5251052a-3802-4894-a310-d1f340dffb6b/gakibotanakabokeneton.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e82b9a69-e18a-4245-aba0-4c09ead6d89b/zopuluvapifonekereg.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e4943da3-ab0e-4237-98ae-2ab7cecdad47/56154532398.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/920af94d-247a-4fa8-ba60-c896604e287b/58860536266.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e7e4a72b-bdd7-4cc6-9d3d-a9fb129f6784/13._2_biotic_and_abiotic_factors.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1d0db4be-80bd-4556-bd80-28a60a1a7af7/wuwafam.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/68358f9f-b77d-4a16-a3d8-bacf511f5a6e/63180827543.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_off00006a7d.bin)

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