Malicious PDF — malware analysis report

Heuristics 5

• 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.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://trafficel.ru/123?keyword=best+bee+shield+borderlands+2 PDF link annotation

  • https://noloturajikule.weebly.com/uploads/1/3/4/4/134486045/mifunojatifojet_fefogirogi_bosizefiziges.pdfIn PDF document text
  • https://sixapinipuso.weebly.com/uploads/1/3/1/3/131384402/suxiwirasofuzawi.pdfIn PDF document text
  • https://fawefugixizim.weebly.com/uploads/1/3/1/3/131383791/7731613.pdfIn PDF document text
  • https://fisolaxarod.weebly.com/uploads/1/3/4/4/134471724/89dfa55e85a6c62.pdfIn PDF document text
  • https://jukafubu.weebly.com/uploads/1/3/0/8/130874261/satasodo-tejopevu-jugutedozux.pdfIn PDF document text
  • https://meboguvogo.weebly.com/uploads/1/3/1/4/131437667/nilerow.pdfIn PDF document text
  • https://misopiwulasi.weebly.com/uploads/1/3/1/8/131856666/pawofi_mituraga_vapuraledog_juraz.pdfIn PDF document text
  • https://nusekaturorofu.weebly.com/uploads/1/3/4/0/134095869/2b198cbc067.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/e72533a2-7573-4bf6-8eb4-2da7a448b108/77634950459.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/23a23598-1b61-4fea-8f7c-3d002be895b1/cs_lewis_the_great_divorce.pdfIn PDF document text
  • https://s3.amazonaws.com/kabisebax/zenuluzajupomowar.pdfIn PDF document text
  • https://s3.amazonaws.com/kawotexulozax/agonistas_colinergicos.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 PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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