Malicious PDF — malware analysis report

Heuristics 9

• 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.
• 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://bestsmartfind.com/revolves.asexually.ZG93bmxvYWR8Z2s4YmprNE4zeDhNVFkxT0RJeE9UUTNNM3g4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA.anode.VG90YWwgQVYgQW50aXZpcnVzIDIwMTkgQ3JhY2sgd2l0aCBBY3RpdmF0aW9uIENvZGUgRnJlZSBIZXJlIQVG9/cbci PDF link annotation

  • https://yoga-district.com/wp-content/uploads/2022/07/HD_Online_Player_Pdf_historia_de_la_fealdad_umberto_e.pdfIn PDF document text
  • https://studentloanreliefllc.com/wp-content/uploads/2022/07/glorech.pdfIn PDF document text
  • https://theblinkapp.com/autodata-3-45-crack-full-64-bit-link/In PDF document text
  • https://www.dominionphone.com/lesspain-kyno-1-7-3-295-extra-quality-crack/In PDF document text
  • https://mydreamfinances.com/index.php/2022/07/28/infinity-box-shell-latest-version-download-__exclusive__/In PDF document text
  • http://quitoscana.it/2022/07/28/englishforachangingworldlevel1studentbookpdf-hot/In PDF document text
  • http://www.trabajosfacilespr.com/fiftyshadesofgrey720pbrripx264yify-portable/In PDF document text
  • https://studiolegalefiorucci.it/wp-content/uploads/historyofcourtsbykailashraipdfdownload.pdfIn PDF document text
  • http://www.techclipse.com/?p=54550In PDF document text
  • https://postlistinn.is/a-walk-to-remember-hindi-dubbed-free-download-freeIn PDF document text
  • https://tbone.fi/wp-content/uploads/2022/07/Strobosoft_Full_11.pdfIn PDF document text
  • https://lagaceta.montehermoso.com.ar/advert/cutmaster-2d-pro-v1-3-2-7-keygen-top/In PDF document text
  • https://annearundelthrives.com/wp-content/uploads/2022/07/toshiba_rfbus_driver_dell.pdfIn PDF document text
  • https://mevoydecasa.es/wp-content/uploads/2022/07/Iphone_Unlock_Software_Crack_Sites_REPACK.pdfIn PDF document text
  • https://lechemin-raccu.com/wp-content/uploads/2022/07/crisweld.pdfIn PDF document text
  • https://okna113.ru/iron-man3-tamil-dubbed-movie-better-free-download-in-tamil-rockers-in-torrent-link/In PDF document text
  • http://www.giffa.ru/who/cs16dedicatedserverlucky13zipgamehack/In PDF document text
  • https://fatroiberica.es/wp-content/uploads/2022/07/michirv.pdfIn PDF document text
  • https://supermoto.online/wp-content/uploads/2022/07/HD_Online_Player_Hd_Sarkar_3_Movies_1080p_Download.pdfIn PDF document text
  • https://psychomotorsports.com/wp-content/uploads/2022/07/435ed7e9f07f7-2667.pdfIn PDF document text
  • https://yoga-district.com/wp-content/uploads/2022/07/HD_Online_Player_PdfIn PDF document text
  • https://www.dominionphone.com/lesspain-kyno-1-7-3-295-extra-quality-In PDF document text
  • https://mydreamfinances.com/index.php/2022/07/28/infinity-box-shell-latest-In PDF document text
  • http://quitoscana.it/2022/07/28/englishforachangingworldlevel1studentbookIn PDF document text
  • http://www.trabajosfacilespr.com/fiftyshadesofgrey720pbrripx264yify-In PDF document text
  • https://studiolegalefiorucci.it/wp-In PDF document text
  • https://lagaceta.montehermoso.com.ar/advert/cutmaster-2d-pro-In PDF document text
  • https://annearundelthrives.com/wp-In PDF document text
  • https://mevoydecasa.es/wp-In PDF document text
  • https://okna113.ru/iron-man3-tamil-dubbed-movie-better-free-download-in-In PDF document text
  • https://supermoto.online/wp-content/uploads/2022/07/HD_Online_Player_HdIn PDF document text
  • https://psychomotorsports.com/wp-In PDF document text
  • http://bestsmartfind.com/revolves.asexually.zg93bmxvywr8z2s4ymprne4zedhnvfkxt0rjee9uutnnm3g4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda.anode.vg90ywwgqvygqw50axzpcnvzidiwmtkgq3jhy2sgd2l0acbby3rpdmf0aw9uienvzgugrnjlzsbizxjliqvg9/cbciIn 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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