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://ggtraff.ru/strik?keyword=tecnolog%25C3%25ADas+de+la+informacion+y+comunicacion+pdf In PDF document text

  • http://files.anurturedchild.org/uploads/1/3/0/7/130738705/2758515.pdfIn PDF document text
  • http://minabexa.hansvercauteren.com/uploads/1/3/0/8/130814328/6c5ab.pdfIn PDF document text
  • http://files.okliferecovery.org/uploads/1/3/1/6/131637755/4496815.pdfIn PDF document text
  • http://files.deannastrasse.com/uploads/1/3/0/8/130874305/mipipusa.pdfIn PDF document text
  • http://files.belsondesign.com.au/uploads/1/3/0/8/130874253/pekevuwowi-demofebuwuma-famafusutanegug-xuzuligax.pdfIn PDF document text
  • http://basumisu.crystalclearwindowcleanersuk.co.uk/uploads/1/3/2/6/132683001/91d3c071c568cbd.pdfIn PDF document text
  • http://mavoxom.calmmoments.net/uploads/1/3/1/3/131381658/2542809.pdfIn PDF document text
  • https://site-1040561.mozfiles.com/files/1040561/fojawalubupuwojezasokirik.pdfIn PDF document text
  • https://site-1039809.mozfiles.com/files/1039809/55221497015.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000612b.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000612b.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off000096c3.bin)
  • https://uploads.strikinglycdn.com/files/e7a2d011-054a-401b-b6da-c22074082d7a/fisul.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d7d13cca-3c1c-46b3-93c3-7555f8ae160a/41135549359.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/94b7cd1b-93a6-4448-bb34-61e21c5e0136/22631031926.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1ca78f2d-6722-4e72-8e16-c14470ca898f/23786552886.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_off0000612b.bin)

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