Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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.
• 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://evacdir.com/beaching/kerstin?oligarchy=/kraftmatic/ZG93bmxvYWR8bUgyTW1JMk9IeDhNVFkxTkRVNU56VTBNWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/nightengale/determined/poorer/QXV0b0NBRAQXV/ PDF link annotation

  • http://infoimmosn.com/?p=1765In PDF document text
  • https://www.intermountainbiota.org/portal/checklists/checklist.php?clid=67749In PDF document text
  • https://the-chef.co/wp-content/uploads/2022/06/janiyudi.pdfIn PDF document text
  • https://www.sartorishotel.it/wp-content/uploads/2022/06/AutoCAD-7.pdfIn PDF document text
  • https://oregonflora.org/checklists/checklist.php?clid=19351In PDF document text
  • https://bodhirajabs.com/wp-content/uploads/2022/06/AutoCAD-11.pdfIn PDF document text
  • https://macroalgae.org/portal/checklists/checklist.php?clid=8699In PDF document text
  • https://worlegram.com/upload/files/2022/06/8qV9ss5DKQMuka7rqwbp_07_689ee4d5b32ce6c7d33423a94e6adf30_file.pdfIn PDF document text
  • https://www.jatjagran.com/wp-content/uploads/AutoCAD-7.pdfIn PDF document text
  • https://khaosod.us/classified/advert/autocad-crack-torrent-activation-code-win-mac-2022/In PDF document text
  • http://jwbotanicals.com/autocad-22-0-keygen-for-lifetime-free-download-mac-win-april-2022/In PDF document text
  • http://eventaka.com/?p=1832In PDF document text
  • http://freemall.jp/autocad-crack-4.htmlIn PDF document text
  • http://majedarjoke.com/wp-content/uploads/2022/06/AutoCAD-2.pdfIn PDF document text
  • https://www.invertebase.org/portal/checklists/checklist.php?clid=7800In PDF document text
  • http://tirupatilist.com/wp-content/uploads/2022/06/AutoCAD-5.pdfIn PDF document text
  • http://huntingafrica.org/wp-content/uploads/2022/06/AutoCAD-4.pdfIn PDF document text
  • http://solaceforwomen.com/?p=6496In PDF document text
  • http://letuscook.it/wp-content/uploads/2022/06/kharpers.pdfIn PDF document text
  • http://evacdir.com/beaching/kerstin?oligarchy=/kraftmatic/zg93bmxvywr8bugytw1jmk9iedhnvfkxtkrvnu56vtbnwhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/nightengale/determined/poorer/qxv0b0nbraqxv/In PDF document text
  • https://socialspace.ams3.digitaloceanspaces.com/upload/files/2022/06/OHMRzCvK8XTXnRzCDZqV_07_689ee4d5b32ce6c7d33423a94e6adf30_file.pdfIn PDF document text
  • http://www.tcpdf.orgIn PDF document text
  • https://socialspace.ams3.digitaloceanspaces.com/upload/files/2022/06/OHMRzCvK8XTXnRzCDZqV_07_689ee4d5b32ce6c7dIn 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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