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://lehmanbrotherbankruptcy.com/clarins/uncharted/grafitti.ZG93bmxvYWR8MkVjWkdScWRIeDhNVFkyTWpZNE1ETTVNSHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA.RlVMTCBBViBWb2ljZSBDaGFuZ2VyIFNvZnR3YXJlIEdvbGQgNy4wLjE1IFNlcmlhbHt1cGxvYWRUSUxMdURJRX0RlV/pelagic/refuel/slump/ PDF link annotation

  • http://implicitbooks.com/advert/cartegpsfblmaroctorrent-top/In PDF document text
  • http://www.chandabags.com/far-cry-4-ulc-unlocker-skidrowfar-cry-4-ulc-unlock-famosi-monopoli-istr-2/In PDF document text
  • https://remcdbcrb.org/wp-content/uploads/2022/09/Fifa_2020_Repack__38_GB__Update_10_FIFAXXIMs_Mod_2020_v21_Sq.pdfIn PDF document text
  • http://bachelorsthatcook.com/wp-content/uploads/2022/09/Alirs232upgradetoolv120downloader15_BETTER.pdfIn PDF document text
  • https://www.dovesicanta.it/wp-content/uploads/2022/09/praigise.pdfIn PDF document text
  • https://waterseal.in/wp-content/uploads/2022/09/bibcam_boys.pdfIn PDF document text
  • https://www.webcard.irish/gtavicecitynokia5233mobilegame360x640-top/In PDF document text
  • https://hkcapsule.com/2022/09/10/twitchbuddy-crack-linked-��-twitch-account-creator-crack-linked-free-download/In PDF document text
  • https://yasutabi.info/wp-content/uploads/2022/09/crefynb.pdfIn PDF document text
  • https://themindfulpalm.com/purab-aur-paschim-full-movie-hd-1080p-in-hindi-download-portable/In PDF document text
  • https://www.prarthana.net/pra/athlean-x-xero-pdf-free-download-upd/In PDF document text
  • https://westernmassrealtor.com/wp-content/uploads/2022/09/Descargar_Pack_De_Videos_Porno_Mp4_Gratisrar_Mega_REPACK.pdfIn PDF document text
  • http://domainedns.com/?p=9673In PDF document text
  • https://www.luckyanimals.it/robot-structural-analysis-professional-2014-32-bit-x86-english-portable-keygen/In PDF document text
  • https://damariuslovezanime.com/canopus-edius-4-plugins-torrent-35/In PDF document text
  • http://www.5280homes.com/?p=149437In PDF document text
  • https://elstruplaug.dk/wp-content/uploads/osiimm.pdfIn PDF document text
  • https://fairdalerealty.com/wp-content/uploads/2022/09/andrev.pdfIn PDF document text
  • https://aboulderpharm.com/wp-content/uploads/Person_Of_Interest_Saison_2_French.pdfIn PDF document text
  • http://cipheadquarters.com/?p=56759In PDF document text
  • http://www.chandabags.com/far-cry-4-ulc-unlocker-skidrowfar-cry-4-ulc-unlock-famosi-monopoli-In PDF document text
  • https://remcdbcrb.org/wp-In PDF document text
  • http://bachelorsthatcook.com/wp-In PDF document text
  • https://hkcapsule.com/2022/09/10/twitchbuddy-crack-linked-��-twitch-account-creator-crack-linked-In PDF document text
  • https://westernmassrealtor.com/wp-In PDF document text
  • https://www.luckyanimals.it/robot-structural-analysis-professional-2014-32-bit-x86-english-portable-In PDF document text
  • http://lehmanbrotherbankruptcy.com/clarins/uncharted/grafitti.zg93bmxvywr8mkvjwkdscwriedhnvfkytwpzne1ettvnshg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda.rlvmtcbbvibwb2ljzsbdagfuz2vyifnvznr3yxjliedvbgqgny4wlje1ifnlcmlhbht1cgxvywrusuxmdurjrx0rlv/pelagic/refuel/slump/In 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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