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 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.
• Fake invoice / payment lure low SE_INVOICE_LURE
  Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
• 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://thedirsite.com/bookselling/SHVzaHNtcyBGdWxsIFZlcnNpb24gMTkyIEFwayBEb3dubG9hZASHV/dignitary=tippy.playmates.ZG93bmxvYWR8Ym4zTVdad2RHWjhmREUyTmpJMk9EQXpPVEI4ZkRJMU9UQjhmQ2hOS1NCWGIzSmtjSEpsYzNNZ1cxaE5URkpRUXlCV01pQlFSRVpk.nitpickers PDF link annotation

  • https://www.sendawin.com/wp-content/uploads/2022/09/ActivationAutoCADOEM2014FreeDownload_LINK.pdfIn PDF document text
  • https://anyjobber.com/marathi-chawat-katha-mck-comics-by-tigerking/In PDF document text
  • https://www.textaura.com/wp-content/uploads/2022/09/Simboluri_Pentru_Breasla_Metin2_Download_LINK.pdfIn PDF document text
  • http://indir.fun/?p=55179In PDF document text
  • https://dev.izyflex.com/advert/win-7-ultimate-crack-key-for-samsung-rv509-laptopl-exclusive/In PDF document text
  • https://mevoydecasa.es/call-of-juarez-gunslinger-tpb-crack-verified/In PDF document text
  • https://wilcityservice.com/wp-content/uploads/2022/09/wessha.pdfIn PDF document text
  • https://connectingner.com/2022/09/12/how-to-hack-the-windows-7-or-vista-passwords-become-a-hacker-free/In PDF document text
  • http://streetbazaaronline.com/?p=104727In PDF document text
  • http://nadiasalama.com/?p=69466In PDF document text
  • http://it-labx.ru/?p=148104In PDF document text
  • https://mommark-landsby.dk/wp-content/uploads/gilbhone.pdfIn PDF document text
  • https://arseducation.com/dreamcast-emulator-for-windows-7-64-bit-14-better/In PDF document text
  • https://guc.lt/wp-content/uploads/2022/09/GSpot_Master.pdfIn PDF document text
  • https://cambodiaonlinemarket.com/error-while-injecting-dll-into-process-3d-analyze/In PDF document text
  • http://tygodnikketrzynski.pl/advert/bahis-analiz-program-excel-exclusive/In PDF document text
  • https://galaxy7music.com/raphael-mazzucco-culo-book-pdf-17-top/In PDF document text
  • http://songskriti.com/18-wheels-steel-haulin-pedal-metal-crack-upd-indir/In PDF document text
  • https://www.wcdefa.org/advert/shogakkou-no-hibi-elementary-days-verified/In PDF document text
  • https://staging.sonicscoop.com/advert/effetto-sperma-photoshop/In PDF document text
  • https://www.sendawin.com/wp-In PDF document text
  • https://www.textaura.com/wp-In PDF document text
  • https://connectingner.com/2022/09/12/how-to-hack-the-windows-7-or-vista-passwords-become-a-In PDF document text
  • http://thedirsite.com/bookselling/shvzahntcybgdwxsifzlcnnpb24gmtkyiefwaybeb3dubg9hzashv/dignitary=tippy.playmates.zg93bmxvywr8ym4ztvdad2rhwjhmreuytmpjmk9eqxppvei4zkrjmu9uqjhmq2hos1ncwgizsmtjsepsyznnz1cxae5urkpruxlcv01pqlfsrvpk.nitpickersIn 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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