Malicious PDF — malware analysis report

Heuristics 6

• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• 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
• 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://cctraff.ru/aws?keyword=similarity+and+congruence+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4365598/normal_5f8c026e47aff.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383687/normal_5f906fca6d5b4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373768/normal_5f8b2329211a5.pdfIn PDF document text
  • https://folarudivol.weebly.com/uploads/1/3/1/8/131871739/237f0a5.pdfIn PDF document text
  • https://sokuvotaboraj.weebly.com/uploads/1/3/0/7/130776263/migazuwaruzape.pdfIn PDF document text
  • https://goduvozimaku.weebly.com/uploads/1/3/1/3/131380582/9863913.pdfIn PDF document text
  • https://bopiwode.weebly.com/uploads/1/3/4/3/134367631/defal_jagemaluzojebam.pdfIn PDF document text
  • https://xebikazogede.weebly.com/uploads/1/3/2/7/132740990/6116436.pdfIn PDF document text
  • https://sobegivi.weebly.com/uploads/1/3/4/3/134311910/0616c73.pdfIn PDF document text
  • https://pevugubak.weebly.com/uploads/1/3/2/7/132740457/07466540.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000068c1.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000068c1.bin)
  • https://uploads.strikinglycdn.com/files/7ea04812-ba97-455d-bd6a-a297c1a4d524/18033693968.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0538ef97-5446-424b-82dd-602032ece894/gikagonifizuzeliwosuda.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7c8f0b75-74ca-4bb3-9e3e-2c1c96991e55/20534734222.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6e9db988-6c02-4250-93a0-722a0408cebd/satepizujovumevo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0181cd46-7139-488e-bdae-b1cc529c7bd5/gekatefezojoserived.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/779c345c-b78e-452e-9285-f07911a0c255/93848363796.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d7db06ea-b54b-4953-bd54-a8bf256de3c3/rezinolin.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7e920d38-e644-483e-a176-f120dedc8ce3/65064616636.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b9a7b803-0c9e-468f-a84c-bb66a3b521c4/9818761199.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e47bebc6-40b1-4c23-ab81-90beb60cc633/40043870039.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a05a5c70-2648-471d-9223-7e39aa7b8b32/wabunemoluza.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fa0927f9-91a7-4d46-b870-77a9f229c2ff/70188724600.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3dd8d359-91f1-4d96-b28a-4b463f65cd8d/dojibumu.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 extracted file (font_00_sfnt_off000068c1.bin)

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