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://trafffi.ru/123?keyword=gun+script+roblox PDF link annotation

  • https://lopuzidijunusi.weebly.com/uploads/1/3/4/3/134378181/dcfbaeb31228.pdfIn PDF document text
  • https://lipowuripipu.weebly.com/uploads/1/3/1/3/131378852/niredunoz.pdfIn PDF document text
  • https://rijizego.weebly.com/uploads/1/3/0/7/130776487/masedagepi.pdfIn PDF document text
  • https://dumexegutotopu.weebly.com/uploads/1/3/4/3/134354144/82d361.pdfIn PDF document text
  • https://nironaguvotu.weebly.com/uploads/1/3/4/5/134530025/dujenofazifeb.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/e0bda75b-e571-4a3e-899b-08991fc2c390/physical_and_chemical_changes_lab_worksheet_answers.pdfIn PDF document text
  • https://s3.amazonaws.com/baritexovopa/45780998746.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ad366b5a-2c29-458b-88ce-586dec7e4e73/zumidarefepejovakodar.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/223fb023-8cdc-4650-b177-54d0a37261ec/filmic_pro_apk.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5a9b35ee-ac17-4bcb-b015-4bc9617ebca7/automatic_control_systems_wolovich.pdfIn PDF document text
  • https://kiwowet.files.wordpress.com/2020/11/call_of_duty_black_ops_mods_ps3.pdfIn PDF document text
  • https://fulebiw.files.wordpress.com/2020/11/90395766720.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/613df454-8814-45ea-885f-a1af7eb25273/wesoleparabemusujogi.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://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
  • http://scripts.sil.org/OFLIn PDF document text

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