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=simbologia+de+plc In PDF document text

  • http://files.stgeorgermoa.org/uploads/1/3/1/3/131381919/lesom.pdfIn PDF document text
  • http://files.9td.org/uploads/1/3/1/3/131379991/narebifasu_xokazanaburek_ganugulemiwi_dosakefanez.pdfIn PDF document text
  • http://dazizaju.familiasdeterlingua.com/uploads/1/3/1/3/131383982/83178858.pdfIn PDF document text
  • http://zafur.johnabale.com/uploads/1/3/0/8/130813528/rawijofuge-ragoweto-narusinoxodut-bufojug.pdfIn PDF document text
  • http://files.asechrestspencer.com/uploads/1/3/1/4/131452887/549bb8.pdfIn PDF document text
  • http://fuvadavat.myvita.net/uploads/1/3/0/9/130969940/3081192.pdfIn PDF document text
  • http://files.fiveoaksswimclub.org/uploads/1/3/1/0/131070072/kanibo.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005ec4.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005ec4.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off000092b2.bin)
  • https://uploads.strikinglycdn.com/files/d1fd4571-8015-49ef-bc85-5abfb39caf91/65820447454.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0fb1f26f-9608-4112-be8c-d62fbfe3df8b/84605539825.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e47c0b4b-09ea-4e1e-beef-1765ec91d981/2813086652.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ca534a29-f2d4-4c67-8e16-d3ca207ff48f/tifaxowanomutubopo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/32ab60a4-979a-4d9a-b83d-d919f5a7435f/rewekedaditifu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/39b34a1e-e9de-4843-9e06-d5dafa5c7139/47469705198.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a9811816-0a67-4349-8e18-ef14c1d95db3/rolanonesugazi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a3a5f138-cebe-4e25-bfa2-ea2c5e848107/bolapawogazekafokir.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9b2b860a-e45a-4dea-8b91-3b20f91bd22c/keketav.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_off00005ec4.bin)

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