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.
• 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.
• PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
  PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
• 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/ZG93bmxvYWR8NFgzTnpCdFpueDhNVFkxTkRjNE1EYzROM3g4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/behcet.a21zIGFjdGl2YXRvciAxLjQgb2ZmaWNlIDIwMTAa21?antipasti=emigrate&doggie=gorged&schooldays=&scored= PDF link annotation

  • http://taifsn.com/male/sony-acid-pro-7-0-e-build-713-keygen-generator-upd/In PDF document text
  • https://www.kmjgroupfitness.com/cracked-diagun-x431-software-download/In PDF document text
  • https://accountcreate.net/wp-content/uploads/2022/06/The_Con_Artist_Korean_Movie_Eng_Sub_Download_17.pdfIn PDF document text
  • https://awinkiweb.com/wp-content/uploads/2022/06/dashpelg.pdfIn PDF document text
  • https://mainemadedirect.com/wp-content/uploads/2022/06/Ipadian_2_Fully_Cracked_Torrent_INSTALL.pdfIn PDF document text
  • https://fastlocalservices.com/xp-c2008-thermal-printer-driver-53l/In PDF document text
  • https://sellandbuyitsolution.com/wp-content/uploads/2022/06/Download_links_for_Capcom_SNK_Arcade_Classics_Collection_Volume.pdfIn PDF document text
  • https://omidsoltani.ir/wp-content/uploads/2022/06/Download_Altium_Designer_9_Full_Crack_REPACK.pdfIn PDF document text
  • https://thebakersavenue.com/wp-content/uploads/2022/06/FIFA_12_is_a_latest_version_of_the_popular_soccer_game_FIFA_FIFA_12_has_the_improved_gamep.pdfIn PDF document text
  • https://cromaz.com.br/upload/files/2022/06/ciI7srf6xUqpK5LOjxLX_09_55f4404308aa429f0a628804cde8771e_file.pdfIn PDF document text
  • https://friendship.money/upload/files/2022/06/1Gj9INcd9P2T4KcQMrzi_09_55f4404308aa429f0a628804cde8771e_file.pdfIn PDF document text
  • https://gotoadmission.com/wp-content/uploads/2022/06/dareng.pdfIn PDF document text
  • http://www.fuertebazar.com/2022/06/09/cost-accounting-book-by-sohail-afzal-pdf-free-download/In PDF document text
  • https://www.renegade-france.fr/wp-content/uploads/2022/06/Free_Download_Torrent_Ontrack_Disk_Manager_1046_Iso.pdfIn PDF document text
  • https://citywharf.cn/anu-telugu-typing-software-free-download-full-version/In PDF document text
  • https://delicatica.ru/2022/06/09/victor-cheng-loms-look-over-my-shoulder-22-mp3s-29-pdfstorrent/In PDF document text
  • https://www.macroalgae.org/portal/checklists/checklist.php?clid=12063In PDF document text
  • https://gameurnews.fr/upload/files/2022/06/tEn3kKQvOBpvaW7woVVH_09_55f4404308aa429f0a628804cde8771e_file.pdfIn PDF document text
  • http://evacdir.com/zg93bmxvywr8nfgztnpcdfpuedhnvfkxtkrjne1eyzrom3g4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/behcet.a21zigfjdgl2yxrvciaxljqgb2zmawnlidiwmtaa21?antipasti=emigrate&doggie=gorged&schooldays=&scored=In PDF document text
  • https://serv.biokic.asu.edu/neotrop/plantae/checklists/checklist.php?clid=27041In PDF document text
  • https://wakelet.com/wake/7BrFr18o1XFJHUK9zjeVYIn 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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