Malicious PDF — malware analysis report

Heuristics 10

• 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.
• Viral-video clickbait PDF links to suspicious host critical SE_VIRAL_VIDEO_CLICKBAIT_LINK
  Document uses viral/leaked-video lure text and links to a suspicious disposable-looking web host. This is a clickbait/traffic-scam carrier shape rather than a benign PDF link.
• 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.
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://raisengine.com/ZG93bmxvYWR8d3M0Y25weGEzeDhNVFkxT0RJeE9EazROWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/heave.excellent/patrick/puces/roleplaying/summertime?wiseguys=TWljcm9zb2Z0IEZsaWdodCBTaW11bGF0b3IgQWNjZWxlcmF0aW9uIChGU1ggWC1QQUNLKSAhQ1JBQ0tFRCEgZG93bmxvYWQgcGMTWl PDF link annotation

  • http://ice-aec.com/index.php/2022/07/25/crack-__link__-rosetta-stone-french-1-2-language-disc-iso-s0ilw0rk/In PDF document text
  • https://www.vacanzenelcilento.info/wp-content/uploads/2022/07/atashinchi_cartoon_in_hindi_full_episodes.pdfIn PDF document text
  • http://avdcsystems.com/wp-content/uploads/2022/07/undopal.pdfIn PDF document text
  • https://copasulassessoria.com.br/advert/dskumarfluidmechanicspdfdownload-extra-quality/In PDF document text
  • https://sugaringspb.ru/fabulatech-serial-port-splitter-v432-incl-keygen-exclusive-read-nfo-41/In PDF document text
  • https://ebbsarrivals.com/2022/07/25/sonnenfreunde-kinder-der-sonne-hot/In PDF document text
  • http://kiraimmobilier.com/?p=43709In PDF document text
  • https://miraclestripbass.com/wp/advert/wd-hdd-pro-repair-trex-2-link/In PDF document text
  • https://yemensouq.com/wp-content/uploads/2022/07/Windows_8_Release_Preview_64_Bit_Crack.pdfIn PDF document text
  • https://nailpersona.com/wp-content/uploads/2022/07/ecm_titanium_173_rarbfdcm.pdfIn PDF document text
  • https://www.topperireland.com/advert/carcassonne-collection-bundle-download-for-pc-verified-full/In PDF document text
  • http://getpress.hu/blog/fan-hindi-720p-dvdrip-torrent/In PDF document text
  • http://www.makeenglishworkforyou.com/2022/07/25/jis-k-6253-standard-pdf/In PDF document text
  • https://juliepetit.com/all-51-popcap-games-collection-with-keygen-free-full-29-work/In PDF document text
  • https://staging.sonicscoop.com/advert/robotstructuralanalysisprofessional200964bitkeygenfree-exclusive/In PDF document text
  • https://azecm.ru/wp-content/uploads/2022/07/amplitubevstfender_xgear_64_bit.pdfIn PDF document text
  • https://www.52zhongchou.com/wp-content/uploads/2022/07/Tum_Milo_Toh_Sahi_Tamil_Movie_2021_Download_In_Hd_720p.pdfIn PDF document text
  • https://studiolegalefiorucci.it/2022/07/25/pose-studio-rar/In PDF document text
  • http://shop.chatredanesh.ir/?p=82407In PDF document text
  • https://lerochlab.fr/wp-content/uploads/2022/07/Peugeot_Servicebox_Backup_Sedre_11_2010_Rar_Rarrar_UPDATED.pdfIn PDF document text
  • http://raisengine.com/zg93bmxvywr8d3m0y25wegezedhnvfkxt0rjee9eazrowhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/heave.excellent/patrick/puces/roleplaying/summertime?wiseguys=twljcm9zb2z0iezsawdodcbtaw11bgf0b3igqwnjzwxlcmf0aw9uichgu1ggwc1qqunlksahq1jbq0tfrcegzg93bmxvywqgcgmtwlIn 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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