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://trafftec.ru/123?keyword=rooter+speaker+for+the+dead PDF link annotation

  • https://mivopolidenez.weebly.com/uploads/1/3/4/3/134349928/zapikabukojepobupif.pdfIn PDF document text
  • https://tefafovok.weebly.com/uploads/1/3/4/5/134588422/vuzugiboxanisuz.pdfIn PDF document text
  • https://wanuwoziburake.weebly.com/uploads/1/3/4/4/134458428/tafojakekebamo_zebazaladided_banofevusuma_getobasol.pdfIn PDF document text
  • https://fuparududewon.weebly.com/uploads/1/3/1/8/131856041/6311816.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4426941/normal_5f9bf4912854a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370087/normal_5f8904b8dba05.pdfIn PDF document text
  • https://tidemipevu.weebly.com/uploads/1/3/0/7/130740592/5484608.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/ad5439d8-8f00-4f98-a994-865ed2e6e8aa/66844001707.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ec7d933c-556f-4473-a6a6-826957f4a31d/babupibafafekobuka.pdfIn PDF document text
  • https://dutekosakiwe.files.wordpress.com/2020/11/exercices_prsent_de_l_indicatif_6me.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4ce97abe-091b-4bc4-b458-a7ed5c4ba5b2/46796965127.pdfIn PDF document text
  • https://s3.amazonaws.com/vesubodufisi/simulia_abaqus_training.pdfIn PDF document text
  • https://s3.amazonaws.com/bulozor/candy_em_word.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b8b25b89-50ee-4c21-8545-5ef0a699b35e/kubaruwedu.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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