Malicious PDF — malware analysis report

Heuristics 6

• 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 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.
• 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://signforcover.com/mosconi.yawning?/SW50ZXJuZXQgRG93bmxvYWQgTWFuYWdlciA2LjIxIEJ1aWxkIDMgRmluYWwgKHByZWFjdGl2YXRlZCkgUmVQYSB1dG9ycmVudASW5/boundary/rasheedah.ZG93bmxvYWR8MWFyWlhoa2NueDhNVFkxT0RJeE9EazROWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA PDF link annotation

  • http://www.ressn.com/inurlbr-��-advanced-search-engine-tool-patched/In PDF document text
  • https://chichiama.net/wp-content/uploads/2022/07/ross_and_wilson_anatomy_and_physiology_11th_edition_free_dow.pdfIn PDF document text
  • https://www.thirtythousandhomes.org/wp-content/uploads/2022/07/Capoeira_Fighter_3_Unlock_Code.pdfIn PDF document text
  • http://powervapes.net/wp-content/uploads/2022/07/Hack_Aimbot_For_Killing_Floor_2_Auto_Aim_Auto_Fire_Fire_Delay.pdfIn PDF document text
  • http://bookmanufacturers.org/sim-aquarium-3-top-crack-indirmeIn PDF document text
  • https://www.alconfin.it/wp-content/uploads/2022/07/kalajal.pdfIn PDF document text
  • http://marido-caffe.ro/?p=11456In PDF document text
  • http://masterarena-league.com/wp-content/uploads/2022/07/yarril.pdfIn PDF document text
  • http://educationalliance.org/2022/07/official-wiko-tommy-2-t3931-v3931-v3933-stock-rom-2021/In PDF document text
  • https://zemsl.org/wp-content/uploads/2022/07/50_odtenkov_sive_download_free16.pdfIn PDF document text
  • https://digitalstoreid.com/wp-content/uploads/2022/07/Kurukshetradownloadtorrent.pdfIn PDF document text
  • https://elektrobest.de/wp-content/uploads/2022/07/govor_tijela_knjiga_free_download.pdfIn PDF document text
  • http://www.studiofratini.com/life-is-feudal-forest-village-v1-1-6719-hack-tool-upd/In PDF document text
  • https://ig-link.com/soal-soal-tes-masuk-kedokteran-umj/In PDF document text
  • https://casacostaalmeria.com/wp-content/uploads/2022/07/ualarake.pdfIn PDF document text
  • https://fgsdharma.org/kmspico-10-1-8-final-portable-office-and-windows-10-activator-install-free-download/In PDF document text
  • https://www.luckyanimals.it/dvd-zeca-pagodinho-multishow-ao-vivo-30-anos-vida-que-segue-download-torrent-avi-free/In PDF document text
  • https://igsarchive.org/article/auto-data-free-updated-download/In PDF document text
  • https://NaturalhealingbyDoctor.com/wp-content/uploads/2022/07/usbflashdrivedatarecoveryv70crackeddownload.pdfIn PDF document text
  • https://chichiama.net/wp-In PDF document text
  • http://powervapes.net/wp-In PDF document text
  • https://www.luckyanimals.it/dvd-zeca-pagodinho-multishow-ao-vivo-30-anos-vida-que-segue-download-In PDF document text
  • https://NaturalhealingbyDoctor.com/wp-In PDF document text
  • http://signforcover.com/mosconi.yawning?/sw50zxjuzxqgrg93bmxvywqgtwfuywdlcia2ljixiej1awxkidmgrmluywwgkhbyzwfjdgl2yxrlzckgumvqysb1dg9ycmvudasw5/boundary/rasheedah.zg93bmxvywr8mwfywlhoa2nuedhnvfkxt0rjee9eazrowhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbdaIn 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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