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.
• 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.
• 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/ZG93bmxvYWR8MmUxWlhOeE1YeDhNVFkxTkRjNE1EZzNPWHg4TWpVM05IeDhLRTBwSUhKbFlXUXRZbXh2WnlCYlJtRnpkQ0JIUlU1ZA.fogeyism?reduce=arrogance.tejeda.Y2hyb25pY2xlcyBvZiByaWRkaWNrIGRhcmsgYXRoZW5hIGFjdGl2YXRpb24gY3JhY2sY2h PDF link annotation

  • https://psychomotorsports.com/atv/10680-octopus-box-samsung-software-version-1-5-9-52/In PDF document text
  • https://davidhassmann.com/2022/06/10/pemikiran-politik-barat-ahmad-suhelmi-pdf-download/In PDF document text
  • https://globalart.moscow/konstruirovanie/ebook-rekayasa-perangkat-lunak-roger-s-pressman-link/In PDF document text
  • https://kramart.com/wp-content/uploads/2022/06/Harry_Potter_E_O_Prisioneiro_De_Azkaban_720p_Dublado_Filmes.pdfIn PDF document text
  • http://www.chelancove.com/wp-content/uploads/2022/06/festo_fluidsim_5_full_version_17.pdfIn PDF document text
  • https://delicatica.ru/wp-content/uploads/2022/06/Celeste_V1241_Hack_Pc.pdfIn PDF document text
  • https://rko-broker.ru/wp-content/uploads/2022/06/Megavision_Pro_Hdd_Multi_Karaoke_Jukebox_Download_48.pdfIn PDF document text
  • http://barmanbook.ru/wp-content/uploads/2022/06/Hamari_Adhuri_Kahani_Movie_720p_Kickass_Torrent.pdfIn PDF document text
  • https://mahoganyrevue.com/advert/remouse-standard-3-4-portable-crack/In PDF document text
  • http://theprofficers.com/?p=14642In PDF document text
  • https://fastmarbles.com/wp-content/uploads/2022/06/iPhone__.pdfIn PDF document text
  • https://hatbazzar.net/wp-content/uploads/2022/06/ethzime.pdfIn PDF document text
  • http://www.vidriositalia.cl/?p=7164In PDF document text
  • http://empoderamientodelospueblosoriginariosac.com/?p=5486In PDF document text
  • https://techfaqs.org/wp-content/uploads/2022/06/Adobe_Acrobat_Xi_Pro_Amtlibdllrar_32_Bitrar.pdfIn PDF document text
  • https://wilcityservice.com/wp-content/uploads/2022/06/tmpgenc_video_mastering_works_6_keygen_21.pdfIn PDF document text
  • https://prachiudyog.com/wp-content/uploads/2022/06/Citizens_for_Common_Sense_Florida.pdfIn PDF document text
  • http://avc-mx.com/wp-content/uploads/2022/06/ufs_dctxbb5_207_cracked.pdfIn PDF document text
  • https://www.opticnervenetwork.com/wp-content/uploads/2022/06/The_Hangover_Part_II2012_720p_x264.pdfIn PDF document text
  • http://marqueconstructions.com/2022/06/10/iktisat-zeynel-dinler-pdf-download/In PDF document text
  • http://evacdir.com/zg93bmxvywr8mmuxwlhoee1yedhnvfkxtkrjne1ezznpwhg4twpvm05iedhlrtbwsuhkbflxuxrzbxh2wnlcyljtrnpkq0jiulu1za.fogeyism?reduce=arrogance.tejeda.y2hyb25py2xlcybvzibyawrkawnrigrhcmsgyxrozw5higfjdgl2yxrpb24gy3jhy2sy2hIn 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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