Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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://esecuritys.com/Q29tbWFuZCBBbmQgQ29ucXVlciBHZW5lcmFscyBObyBDZCBQYXRjaAQ29?ZG93bmxvYWR8T3AyYzJkeE1ueDhNVFkxT0RJeE9EazROWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA=bestnewcarprice&fontanelle=helmuth.&slighest=drumit PDF link annotation

  • https://postlistinn.is/vnc-connect-enterprise-6-7-1-with-serial-key-updIn PDF document text
  • http://centralpurchasing.online/?p=14096In PDF document text
  • http://www.kiwitravellers2017.com/wp-content/uploads/2022/07/Igi_4_Free_Download_Setup_Windowsl_VERIFIED.pdfIn PDF document text
  • https://frotastore.com/wp-content/uploads/2022/07/Corel_PaintShop_Pro_X8_Ultimate_v1800124_Keygen.pdfIn PDF document text
  • https://gazetabilgoraj.pl/advert/aointernationaltennisinstall-crackalltypehacks/In PDF document text
  • http://www.giffa.ru/who/top-rated-license-standalone-dat-matlab-r2012a-__exclusive__/In PDF document text
  • http://belcomcorp.com/wp-content/uploads/2022/07/Adobe_Photoshop_CC_2018_V190_32_Bit_Ml_Full_Version.pdfIn PDF document text
  • https://eshopper.info/wondersoft-virtual-pdf-printer-keygen-patched/In PDF document text
  • https://6v9x.com/farm-mania-hot-vacation-full-better-version-download-rar/In PDF document text
  • https://autko.nl/2022/07/serif-affinity-designer-1-7-2-471-keygen-exclusive/In PDF document text
  • http://annarborholistic.com/wp-content/uploads/2022/07/Solucionariodinamicahibbeler7edicion.pdfIn PDF document text
  • https://captainseduction.fr/wp-content/uploads/2022/07/Audials_Tunebite_12_Platinum_Serial_12.pdfIn PDF document text
  • https://beautysecretskincarespa.com/2022/07/25/hedge-1-8-2-crack-extra-quality/In PDF document text
  • https://monarchcovecondos.com/advert/the-reader-movie-dual-audio-hindi-cracked/In PDF document text
  • https://theluxurytilesummit.com/wp-content/uploads/2022/07/Jogos_De_Kiki_Budowski_Free.pdfIn PDF document text
  • https://ursgift.com/wp-content/uploads/2022/07/berdjess.pdfIn PDF document text
  • https://vincyaviation.com/wp-content/uploads/2022/07/ancfau.pdfIn PDF document text
  • https://orbeeari.com/minecraft-1-7-5-cracked-full-installer-online-server-list-key-generator-link/In PDF document text
  • https://muehlenbar.de/jaanwar-3-full-movie-download-hd-1080p-link/In PDF document text
  • http://communitytea.org/wp-content/uploads/2022/07/Little_Fighter_4_Turbo_Rar_Free_Download.pdfIn PDF document text
  • http://esecuritys.com/q29tbwfuzcbbbmqgq29ucxvlcibhzw5lcmfscybobybdzcbqyxrjaaq29?zg93bmxvywr8t3ayyzjkee1uedhnvfkxt0rjee9eazrowhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda=bestnewcarprice&fontanelle=helmuth.&slighest=drumitIn 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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