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.
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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/aws?keyword=girls+frontline+hack+apk PDF link annotation

  • https://xujaxivef.weebly.com/uploads/1/3/1/4/131438557/2457f6c731.pdfIn PDF document text
  • https://paxesejok.weebly.com/uploads/1/3/4/3/134348383/9c25fd91e97.pdfIn PDF document text
  • https://rovatelafewi.weebly.com/uploads/1/3/4/3/134392743/pipizu-lovefokesiwas-wawixa-dodimu.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376612/normal_5f90c7e0e2a4c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4386087/normal_5f9f1fc645dd3.pdfIn PDF document text
  • https://wejibuxod.weebly.com/uploads/1/3/0/7/130740202/4251449.pdfIn PDF document text
  • https://xogexemufak.weebly.com/uploads/1/3/1/4/131437987/papedevevin.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/zidosozawok/old_balarama_free_download.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fac447c0-e41c-48d5-a872-da7c57aea249/mevutofelemasakineputo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3af5f248-a067-4c1b-bc97-30e09cf9da75/sagorafelonixufitaxagodi.pdfIn PDF document text
  • https://s3.amazonaws.com/setaxilitozuko/fijusofigezititofawode.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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