Malicious PDF — malware analysis report

Heuristics 9

• 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.
• Cracked-software lure uses shortlink/download gateway critical PDF_CRACKED_SOFTWARE_SHORTLINK_LURE
  PDF visible text advertises a crack, serial number, archive, or pirated-software download and pairs it with a shortlink or encoded download gateway. This is a high-confidence social-engineering carrier for unwanted software or droppers; the PDF itself is not a parser exploit.
• Cracked-software lure uses download-gateway redirectors high PDF_CRACKED_SOFTWARE_REDIRECTOR_LINK_FARM
  PDF contains multiple cracked-software/keygen/serial-key lure links together with long encoded download-gateway URLs or known crack-download redirector hosts. This is stronger than generic piracy vocabulary: the document is an SEO lure that funnels users through redirect/download infrastructure commonly used for adware, unwanted software, or droppers.
• PDF links to a cracked-software download doorway (base64-obfuscated) high PDF_CRACKED_SOFTWARE_DOWNLOAD_DOORWAY
  PDF's embedded link hides a pirated-software title as a base64 blob inside the URL path/query (and/or carries the ``download|`` doorway-template marker), rather than in visible text. This is a TCPDF-generated SEO doorway that ranks for software-piracy searches and funnels users to fake 'crack/keygen' download pages distributing adware, potentially-unwanted programs, or droppers. The base64 encoding is deliberate obfuscation to evade plaintext lure rules; the PDF itself carries no parser exploit — the risk is the linked crack-download destination.
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• PDF link farm advertises cracked/pirated software medium PDF_CRACKED_SOFTWARE_LURE
  PDF contains many clickable links whose targets use cracked-software, keygen, serial-key, or warez vocabulary. These are SEO-spam lure documents that rank for software-piracy searches and route users to fake 'crack' download pages distributing potentially-unwanted programs, adware, or droppers. The PDF itself carries no exploit — the risk is the linked destinations.
• 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
• 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 http://xtraserp.com/atoms.QXV0b0NBRAQXV/explorer?floribbean&intercessory=invacare/comfywash&knowingness=ZG93bmxvYWR8eUY1WldNM04zeDhNVFkyTURBNU1UQTBPSHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA PDF link annotation

  • http://rastadream.com/?p=64300In PDF document text
  • https://ekibinibul.com/wp-content/uploads/2022/08/markkell.pdfIn PDF document text
  • https://www.beaches-lakesides.com/wp-content/uploads/2022/08/AutoCAD-92.pdfIn PDF document text
  • https://cafevalentustienda.com/wp-content/uploads/2022/08/halheth.pdfIn PDF document text
  • https://www.theccgway.com/wp-content/uploads/2022/08/AutoCAD-49.pdfIn PDF document text
  • https://srkvilaskodaikanal.com/2022/08/10/autocad-20-0-pc/In PDF document text
  • http://lawcate.com/autocad-2021-24-0-crack-license-key-full-mac-win-latest/In PDF document text
  • https://mevoydecasa.es/autocad-24-1-crack-license-key-full-april-2022/In PDF document text
  • https://orbeeari.com/autocad-2023-24-2-crack-torrent-activation-code-free-download-2022/In PDF document text
  • https://www.slas.lk/advert/autocad-crack-with-keygen-download/In PDF document text
  • http://mycontractors.net/wp-content/uploads/2022/08/AutoCAD-56.pdfIn PDF document text
  • https://halletabi.com/wp-content/uploads/2022/08/AutoCAD-31.pdfIn PDF document text
  • https://mitiflowers.com/autocad-crack-license-key-full-3264bit-april-2022/In PDF document text
  • https://spacebott.com/autocad-2018-22-0-crack-with-license-code-download-for-pc/In PDF document text
  • https://nashvilleopportunity.com/wp-content/uploads/2022/08/queeli.pdfIn PDF document text
  • http://xtraserp.com/atoms.qxv0b0nbraqxv/explorer?floribbean&intercessory=invacare/comfywash&knowingness=zg93bmxvywr8euy1wldnm04zedhnvfkyturbnu1uqtbpshg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbdaIn PDF document text
  • http://www.tcpdf.orgIn 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/xap/1.0/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://www.aiim.org/pdfa/ns/extension/In PDF document text
  • http://www.aiim.org/pdfa/ns/schema#In PDF document text
  • http://www.aiim.org/pdfa/ns/property#In PDF document text
  • http://www.aiim.org/pdfa/ns/id/In PDF document text

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