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://seachtop.com/curcumin.QWxiZXJ0byBNZWx1Y2NpIE5vbWFkcyBPZiBUaGUgUHJlc2VudC5wZGYQWx/formulating?francessco&intercessory=janeiro/comfywash&markedly=ZG93bmxvYWR8WTlvTVRWME1uRjhmREUyTlRneU1UazBOek44ZkRJMU9UQjhmQ2hOS1NCWGIzSmtjSEpsYzNNZ1cxaE5URkpRUXlCV01pQlFSRVpk PDF link annotation

  • https://studiblog.net/wp-content/uploads/2022/07/elvcar.pdfIn PDF document text
  • https://ksycomputer.com/menar-tefsiri-indir-pdf-exclusive-free-24bfdcm/In PDF document text
  • https://digi-office.eu/2022/07/29/pes-2013-patch-commentary-fares-awad-arab-free-dawnlead-best/In PDF document text
  • https://www.viizair.com/pgi-workstation-linux-link-crack-password/In PDF document text
  • https://uglemskogpleie.no/business-law-by-mc-kuchhal-pdf-free-top-download/In PDF document text
  • https://coi-csod.org/wp-content/uploads/2022/07/Call_Of_Duty_Modern_Warfare_3_En-1.pdfIn PDF document text
  • https://progressivehealthcareindia.com/2022/07/29/itc-franklin-gothic-font-family-zip-better/In PDF document text
  • https://entrelink.hk/uncategorized/need-for-speed-most-wanted-turkce-tek-link-indir/In PDF document text
  • https://www.thepostermafia.com/2022/07/29/rush-snakes-and-arrows-live-torrent/In PDF document text
  • http://freemall.jp/wp-content/uploads/2022/07/Hana_Yori_Dango_Final_Sub_Indo.pdfIn PDF document text
  • https://tourismcenter.ge/wp-content/uploads/2022/07/OperationalResearchByKantiSwaroopPdfFreeDownloadhit_UPDATED.pdfIn PDF document text
  • https://kraftur.org/wp-content/uploads/2022/07/chaber.pdfIn PDF document text
  • https://babussalam.id/wp-content/uploads/2022/07/Cyberlink_Powerdirector_10_Plugins.pdfIn PDF document text
  • http://peoniesandperennials.com/?p=13544In PDF document text
  • https://mentoring4good.com/wp-content/uploads/2022/07/Sweetxcheeks_Stickam_Avi.pdfIn PDF document text
  • https://www.rumahpro.id/wp-content/uploads/2022/07/orazfab.pdfIn PDF document text
  • https://oknit.ru/wp-content/uploads/2022/07/nelpadd.pdfIn PDF document text
  • http://fisher65.ru/wp-content/uploads/2022/07/corel_draw_x4_full_version_free_download_with_crack.pdfIn PDF document text
  • https://instafede.com/dekada70full-linkmoviedownload-2/In PDF document text
  • https://www.emitpost.com/wp-content/uploads/2022/07/download_movie_Ishqedarriyaan_in_hindi.pdfIn PDF document text
  • http://seachtop.com/curcumin.qwxizxj0bybnzwx1y2npie5vbwfkcybpzibuaguguhjlc2vudc5wzgyqwx/formulating?francessco&intercessory=janeiro/comfywash&markedly=zg93bmxvywr8wtlvtvrwme1urjhmreuytlrneu1uazboek44zkrjmu9uqjhmq2hos1ncwgizsmtjsepsyznnz1cxae5urkpruxlcv01pqlfsrvpkIn 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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