Malicious PDF — malware analysis report

Heuristics 6

• 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.
• Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
  Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
• 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://trafffi.ru/aws?keyword=amazon+appstore+download+apk+android PDF link annotation

  • https://rabifupokuwu.weebly.com/uploads/1/3/1/1/131164250/cc0b5212d.pdfIn PDF document text
  • https://mufalugibesenu.weebly.com/uploads/1/3/1/4/131453255/56493c3c.pdfIn PDF document text
  • https://lodirunesu.weebly.com/uploads/1/3/0/8/130874391/kagejosuwu-bufegolofajog-pujefadu.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4404503/normal_5fa47276bda73.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://likuzow.files.wordpress.com/2020/11/40264502684.pdfIn PDF document text
  • https://s3.amazonaws.com/guwutivupudutu/transmission_line_theory.pdfIn PDF document text
  • https://s3.amazonaws.com/pozokimepe/sutaxogagipamorefepewagej.pdfIn PDF document text
  • https://jasafoxena.files.wordpress.com/2020/11/nokusot.pdfIn PDF document text
  • https://tevarew.files.wordpress.com/2020/11/88608638079.pdfIn PDF document text
  • https://dokilujaze.files.wordpress.com/2020/11/46505601668.pdfIn PDF document text
  • https://tibepitetuj.files.wordpress.com/2020/11/44726641975.pdfIn PDF document text
  • https://riroxoposej.files.wordpress.com/2020/11/zanogosisopojagixiv.pdfIn PDF document text
  • https://wirejodumab.files.wordpress.com/2020/11/tiwaparamefoja.pdfIn PDF document text
  • https://teviwuder.files.wordpress.com/2020/11/bobes.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

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