Malicious PDF — malware analysis report

Heuristics 8

• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://evacdir.com/smartwork/chomping.reclassify/reverses/baffled.skywalker/ZG93bmxvYWR8QlU0TldadWJueDhNVFkxTlRNek9Ua3dOSHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA?QWZ0ZXIgRWZmZWN0cyBDczUgUGx1Z2luIEtleWxpZ2h0IDEuMiBEb3dubG9hZAQWZ PDF link annotation

  • https://whispering-plateau-77437.herokuapp.com/pallchel.pdfIn PDF document text
  • https://legalacademy.net/blog/index.php?entryid=430In PDF document text
  • https://paintsghana.com/advert/buena-vista-social-club-discografia-completa-brunokito-rar-install/In PDF document text
  • https://4j90.com/windows-10-enterprise-2016-ltsb-x64-multi-19-jan-2017/In PDF document text
  • https://formacorp.unilearn.cl/blog/index.php?entryid=559In PDF document text
  • https://greatnusa.com/blog/index.php?entryid=698In PDF document text
  • https://dwfind.org/wp-content/uploads/2022/06/street_fighter_x_tekken_change_language_russian_to_english.pdfIn PDF document text
  • https://apolloinstitute.com.au/moodle/blog/index.php?entryid=2915In PDF document text
  • https://ekhayaonline.com/catia-p3-v5r17-new-crack/In PDF document text
  • https://enterpack.ca/wp-content/uploads/2022/06/Pathloss_5_Crack_Fullrar_PATCHED.pdfIn PDF document text
  • https://www.reiki.swiss/blog/index.php?entryid=718In PDF document text
  • https://globalunionllc.com/winsetupfromusb-02-2-fix/In PDF document text
  • https://www.tanabutr.co.th/sites/default/files/webform/brochures_contact_form/_sid_/Adobe-Premiere-Pro-CC-20185-910-174-Crack-utorrent.pdfIn PDF document text
  • https://shielded-waters-23586.herokuapp.com/the_image_of_the_city_kevin_lynch_pdf_free_download.pdfIn PDF document text
  • https://mevoydecasa.es/all-big-fish-games-install-crack-torrent/In PDF document text
  • http://texocommunications.com/wp-content/uploads/2022/06/Cape_Fear_1991_720p_BrRip_Mkv__650mb__YIFYCape_Fear_1991_720p_BrRip_Mkv__650mb__559.pdfIn PDF document text
  • https://electricnews.fr/wp-content/uploads/2022/06/Alexx_Andria_Leverage_Epub_Download.pdfIn PDF document text
  • https://zakadiconsultant.com/wp-content/uploads/2022/06/Solucionariodisenoeningenieriaquimicaarturojimenez_BEST.pdfIn PDF document text
  • https://www.peyvandmelal.com/wp-content/uploads/2022/06/Download_Fifa_Street_4_Zip_Passwordtxt_UPDATED.pdfIn PDF document text
  • https://www.tanabutr.co.th/sites/default/files/webform/brochures_contact_form/_sid_/Adobe-Premiere-Pro-In PDF document text
  • http://texocommunications.com/wp-content/uploads/2022/06/Cape_Fear_1991_720p_BrRip_Mkv__650mb__YIFYCape_FearIn PDF document text
  • http://evacdir.com/smartwork/chomping.reclassify/reverses/baffled.skywalker/zg93bmxvywr8qlu0tldadwjuedhnvfkxtlrnek9ua3doshg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda?qwz0zxigrwzmzwn0cybdczugugx1z2luietlewxpz2h0ideumibeb3dubg9hzaqwzIn PDF document text
  • https://grigoriykonovalov4.wixsite.com/orexevas/post/clave-de-activacion-del-office-suite-7In 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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