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://evacdir.com/balances/influx?monstrosities=hack.ZG93bmxvYWR8YWc2WWpsdE9IeDhNVFkxTkRjNE1EZzNPWHg4TWpVM05IeDhLRTBwSUhKbFlXUXRZbXh2WnlCYlJtRnpkQ0JIUlU1ZA.programing.loping.RnJlZSBEb3dubG9hZCBQYyBHYW1lIEhhbG8gMyBGdWxsIFZlcnNpb24RnJ PDF link annotation

  • https://thevalleyvoice.ca/advert/infectonator-3-apocalypse-v1-5-cheat-engine/In PDF document text
  • https://www.theblackhaven.com/wp-content/uploads/2022/06/Chicken_Invaders_4_Ultimate_Omelette__Cheats_Codes.pdfIn PDF document text
  • https://vukau.com/upload/files/2022/06/y1aHEcIuV5yhpdGDpndF_10_ee9bdaae5133deb98161b40b6060868d_file.pdfIn PDF document text
  • https://riberadelxuquer.com/wp-content/uploads/2022/06/Nfs_Undercover_Crack_Rar_Passwor.pdfIn PDF document text
  • https://explorerea.com/wp-content/uploads/2022/06/Hindi_Hd_Krishna_Cottage_Movies_1080p_Torrent.pdfIn PDF document text
  • https://24hairnow.com/wp-content/uploads/2022/06/Karachi_Racer_Full_Version_Free_Download_Game.pdfIn PDF document text
  • https://awinkiweb.com/engeyum-eppothum-2011-tamil-1cd-lotus-dvdrip-xvidwwwmastitorrentscomavi/In PDF document text
  • https://businessbooster.page/wp-content/uploads/2022/06/A_study_of_the_curious_and_unique_language_of_Telugu__Gopalan_Facebook_Page.pdfIn PDF document text
  • http://www.antiquavox.it/exploring-the-world-of-english-by-saadat-ali-shah-pdf-free-439/In PDF document text
  • https://makanty.net/wp-content/uploads/2022/06/otafli.pdfIn PDF document text
  • https://kingspremiumhemp.com/wp-content/uploads/2022/06/Tmpgenc_Video_Mastering_Works_6_Keygen_71_WORK.pdfIn PDF document text
  • https://cine-africain.com/alasahv/starcraft-brood-war-maps-download/In PDF document text
  • http://uttaranchalcollege.com/wp-content/uploads/2022/06/balvale.pdfIn PDF document text
  • http://myquicksnapshot.com/?p=5613In PDF document text
  • https://letthemeatcottoncandy.de/wp-content/uploads/2022/06/kasenirv.pdfIn PDF document text
  • http://aceite-oliva.online/wp-content/uploads/2022/06/Raees_720p_Xvid_1080p_Free_Download.pdfIn PDF document text
  • http://www.sweethomeslondon.com/?p=5862In PDF document text
  • https://shofaronlinestore.org/wp-content/uploads/2022/06/CS_GO_Mac_Cheat_Trigger_Bhop_ESP_Aimbot_and_more_NO_VAC.pdfIn PDF document text
  • https://evonegocio.com/wp-content/uploads/2022/06/Download_Win_7_ISO_Images.pdfIn PDF document text
  • http://www.studiofratini.com/vitamin-d-camera-software-crack-download-patched/In PDF document text
  • https://businessbooster.page/wp-In PDF document text
  • https://shofaronlinestore.org/wp-In PDF document text
  • http://evacdir.com/balances/influx?monstrosities=hack.zg93bmxvywr8ywc2wwpsde9iedhnvfkxtkrjne1ezznpwhg4twpvm05iedhlrtbwsuhkbflxuxrzbxh2wnlcyljtrnpkq0jiulu1za.programing.loping.rnjlzsbeb3dubg9hzcbqyybhyw1liehhbg8gmybgdwxsifzlcnnpb24rnjIn 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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