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/ZG93bmxvYWR8UXU2WkRSbmJueDhNVFkxTkRnNU16RTVNWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/newness/personhood/vlaanderenstraat.bohemian?&RG93bmxvYWQgVHVybml0aW4gVG9ycmVudARG9= PDF link annotation

  • https://texvasa.com/2022/06/11/postworkshop-pro-3-0-build-4990-sr1-x86-x64/In PDF document text
  • https://www.yourlocalmusician.com/wp-content/uploads/2022/06/ramhia.pdfIn PDF document text
  • https://prendimisubito.com/wp-content/uploads/2022/06/bersal.pdfIn PDF document text
  • https://wocfolx.com/upload/files/2022/06/aTFwSkmRhBZuy3VOET1f_11_a96edfe8710fd186aa1b6b13c38cdb55_file.pdfIn PDF document text
  • https://eskidiyse.com/index.php/crack-rhinoceros-4-flamingo-v-ray-for-rhino-zoo-grasshopper-for-r-best/In PDF document text
  • https://www.alnut.com/watchdogs32bitcrackfreedownload/In PDF document text
  • https://speedhunters.al/wp-content/uploads/2022/06/ardjat.pdfIn PDF document text
  • https://portal.neherbaria.org/portal/checklists/checklist.php?clid=24055In PDF document text
  • https://estatezone.net/mbrwizard-suite-4-1-18-updated/In PDF document text
  • https://www.coachingandlife.com/wp-content/uploads/2022/06/German_Luger_Serial_Number_Lookup.pdfIn PDF document text
  • https://www.webcard.irish/wp-content/uploads/2022/06/Need_For_Speed_Shift_64bit_Crack_WORK.pdfIn PDF document text
  • http://realtowers.com/?p=10573In PDF document text
  • https://mandarininfo.com/cyberlink-youcam-deluxe-8-0-0925-0-pre-cracked-cracksmind-serial-key/In PDF document text
  • https://spacefather.com/andfriends/upload/files/2022/06/debw7qG8pILIHUKzg9Mo_11_b7234b617dd74ff7dbaeefea7d300147_file.pdfIn PDF document text
  • https://upplevlandsbygden.se/wp-content/uploads/2022/06/yulpep.pdfIn PDF document text
  • https://www.5etwal.com/download-cimatron-e9-full-39-best/In PDF document text
  • https://www.vsv7.com/upload/files/2022/06/lJG9IKiZzW4cNF2lUL5q_11_a96edfe8710fd186aa1b6b13c38cdb55_file.pdfIn PDF document text
  • https://miniwho.com/wp-content/uploads/2022/06/sri_kanaka_mahalakshmi_recording_dance_troupe_full_movie_fre.pdfIn PDF document text
  • https://newsafrica.world/2022/06/boris-fx-8-0-serial-numberl/In PDF document text
  • http://uttaranchalcollege.com/wp-content/uploads/2022/06/Pearl_Harbor_1080p_Ita_Torrent_VERIFIED.pdfIn PDF document text
  • http://evacdir.com/zg93bmxvywr8uxu2wkrsbmjuedhnvfkxtkrnnu16rtvnwhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/newness/personhood/vlaanderenstraat.bohemian?&rg93bmxvywqgvhvybml0aw4gvg9ycmvudarg9=In PDF document text
  • http://uttaranchalcollege.com/wp-content/uploads/2022/06/pearl_harbor_1080p_ita_torrent_verified.pdfIn 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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