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://bologen.ru/wb?keyword=christina%20perri%20distance PDF link annotation

  • https://static.s123-cdn-static.com/uploads/4454813/normal_5fec6629a72a8.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4448556/normal_5fecc762e77b5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4413850/normal_5fe9757db65bc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4476152/normal_5fd8dbac19604.pdfIn PDF document text
  • https://tedawubav.weebly.com/uploads/1/3/4/3/134376018/bulofusutagevo_xejal_mogabekope_gosafadijugi.pdfIn PDF document text
  • https://nugakiru.weebly.com/uploads/1/3/6/0/136050310/4120624.pdfIn PDF document text
  • https://todatotosikuped.weebly.com/uploads/1/3/0/7/130740429/ae5f1fe.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4464734/normal_601a639a37c72.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4464542/normal_600ec163311b2.pdfIn PDF document text
  • https://femovoba.weebly.com/uploads/1/3/0/7/130775826/2d01e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380876/normal_600c96af04650.pdfIn PDF document text
  • http://callipakk2.site/44287490259ueisd.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4407304/normal_5fc834ece9eb7.pdfIn PDF document text
  • https://timowerudep.weebly.com/uploads/1/3/0/7/130738780/kapokato-lipomiwutotuwa.pdfIn PDF document text
  • https://dolibaradodusop.weebly.com/uploads/1/3/4/5/134595809/kuket-nutuvasenojit-sisefosafe-bizumezenemo.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn 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

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