Malicious PDF — malware analysis report

Heuristics 5

• 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.
• 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/strik?keyword=transfer+order+1 In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366401/normal_5f8bd8705be0b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369305/normal_5f8a1ecc9ee97.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370768/normal_5f891d9b93236.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366660/normal_5f8b596bf26d0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374373/normal_5f890fb81b84d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365652/normal_5f87246e4531b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365607/normal_5f881078ef5b5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374954/normal_5f899e4c6e793.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366305/normal_5f873ccb33260.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376379/normal_5f89b9c072750.pdfIn PDF document text
  • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/ratefunerod.pdfIn PDF document text
  • https://taxajadotediru.weebly.com/uploads/1/3/0/8/130873824/vawolix.pdfIn PDF document text
  • https://purolejomi.weebly.com/uploads/1/3/0/7/130776639/861830fe7c5104.pdfIn PDF document text
  • https://sokuvotaboraj.weebly.com/uploads/1/3/0/7/130776263/zisunululajikosoj.pdfIn PDF document text
  • https://tarirubawapub.weebly.com/uploads/1/3/1/6/131606173/vumesaruxiwag.pdfIn PDF document text
  • https://jemiwuwavaza.weebly.com/uploads/1/3/0/8/130814288/bibesekukemugedovofa.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/6902acb9-4733-4be5-9798-2a27f936d16f/negovutoxivokuxemukidisi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2db94ebb-85bd-4c76-a285-1056a91f04ec/96484790519.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6be765b8-942d-425e-bea6-0fb5439df9e3/kezibakitorajipotevi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/aca0091b-509c-42e9-b99a-2dcb52259a06/bulujewawubuzut.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fcb0877c-bc50-4bb6-991d-e1e74ab93610/sezawubejapuvorozumo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bf57ee27-d5da-45c9-ae12-e3146c209c6d/jizus.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f8f72b87-cf7d-402f-8636-94097d026729/putowuloseme.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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