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://lehmanbrotherbankruptcy.com/weinstein.depicts/webmdhealth/frambozencoulis/humanitarian.SmhlYWQSmh.simulcasting/ZG93bmxvYWR8NktvWjNKNE1IeDhNVFkxTmpnNU1qTTFNbng4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/skyjoe PDF link annotation

  • https://kireeste.com/desktop-calendar-and-planner-software-crack-patch-with-serial-key-download-april-2022/In PDF document text
  • http://igpsclub.ru/social/upload/files/2022/07/H56XRhdlmIF7IK3va5dc_04_7f3273b5b9f93e4345959aa81b38dc37_file.pdfIn PDF document text
  • http://insenergias.org/?p=24420In PDF document text
  • https://www.t-find.com/wp-content/uploads/2022/07/quigil-1.pdfIn PDF document text
  • http://www.2el3byazici.com/?p=26927In PDF document text
  • https://aipc.ae/wp-content/uploads/2022/07/petoly.pdfIn PDF document text
  • https://cobblerlegends.com/attributemagic-for-documents-crack-lifetime-activation-code-mac-win/In PDF document text
  • https://newsbaki.com/wp-content/uploads/2022/07/Bytescout_BarCode_Generator_SDK.pdfIn PDF document text
  • https://volektravel.com/magic-aac-to-mp3-converter-crack-free-3264bit-2022/In PDF document text
  • https://voiccing.com/upload/files/2022/07/2J6RGGFWH1D7V6pXGCEK_04_7f3273b5b9f93e4345959aa81b38dc37_file.pdfIn PDF document text
  • https://stinger-live.s3.amazonaws.com/upload/files/2022/07/cfCCxO9K7BL3KmtOOwPx_04_7f3273b5b9f93e4345959aa81b38dc37_file.pdfIn PDF document text
  • https://www.atlaspain.it/exif-date-changer-3-5-5-15102-2022-latest/In PDF document text
  • https://tinilist.com/wp-content/uploads/2022/07/Lottery_Money_Maker.pdfIn PDF document text
  • https://cobblerlegends.com/wait-free-download/In PDF document text
  • https://gamersmotion.com/light-artist-with-full-keygen-x64-march-2022/In PDF document text
  • http://elkscountrygolf.com/2022/07/04/sale-control-crack/In PDF document text
  • http://pepsistars.com/belkasoft-facebook-profile-saver-crack/In PDF document text
  • https://mashxingon.com/simpsons-walk-on-by-with-license-code-mac-win/In PDF document text
  • https://www.tailormade-logistics.com/sites/default/files/webform/louvhefe854.pdfIn PDF document text
  • https://instafede.com/photopus-crack-torrent-for-pc-2/In PDF document text
  • https://kireeste.com/desktop-calendar-and-planner-software-crack-patch-with-serial-key-download-In PDF document text
  • http://igpsclub.ru/social/upload/files/2022/07/H56XRhdlmIF7IK3va5dc_04_7f3273b5b9f93e4345959aIn PDF document text
  • https://voiccing.com/upload/files/2022/07/2J6RGGFWH1D7V6pXGCEK_04_7f3273b5b9f93e4345959aaIn PDF document text
  • https://stinger-live.s3.amazonaws.com/upload/files/2022/07/cfCCxO9K7BL3KmtOOwPx_04_7f3273b5In PDF document text
  • http://lehmanbrotherbankruptcy.com/weinstein.depicts/webmdhealth/frambozencoulis/humanitarian.smhlywqsmh.simulcasting/zg93bmxvywr8nktvwjnkne1iedhnvfkxtmpnnu1qttfnbng4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/skyjoeIn 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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