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/philanthropic/rembert.RmxpcCBQZGYgUHJvZmVzc2lvbmFsIDEuNi4xIEtleWdlbiBHZW5lcmF0b3IRmx/subaru/ZG93bmxvYWR8SzF2TVRCaGNUTjhmREUyTlRRNE9UTXhPVEY4ZkRJMU9UQjhmQ2hOS1NCWGIzSmtjSEpsYzNNZ1cxaE5URkpRUXlCV01pQlFSRVpk.throne/loceryl/lone PDF link annotation

  • http://www.italiankart.it/advert/bayan-umawit-songbook-pdf-332-link/In PDF document text
  • https://wp.gymbruneck.info/advert/still-life-2-pc-game-ita-eng-ger-fra-hack-tool-free-download/In PDF document text
  • https://alafdaljo.com/winrar-5-10-final-x86-x64-ita-themes-utorrent-link/In PDF document text
  • https://coachfactor.it/msdos71isorepack-downloadpc/In PDF document text
  • http://www.ndvadvisers.com/descargar-kof-mugen-para-pc-mega-downloadl/In PDF document text
  • https://fmpconnect.com/wp-content/uploads/2022/06/dervkaf.pdfIn PDF document text
  • http://bookmarkwebs.com/upload/files/2022/06/6F277IPOgnLIsgD75Ujo_11_7e73784d053d14b74125ae92bc25567c_file.pdfIn PDF document text
  • https://mediquestnext.com/wp-content/uploads/2022/06/Autodesk_AutoCAD_2018_836_x86x64_Keygen_Crack_Download_Pc.pdfIn PDF document text
  • https://donorpartie.com/wp-content/uploads/2022/06/elements_of_partial_differential_equations_by_ian_sneddon_pd.pdfIn PDF document text
  • https://demoforextrading.com/wp-content/uploads/2022/06/SnapTube_46104611310__Premium_Mod_Cracked_Unlocked_APK_Is_Here__Extra_Quality.pdfIn PDF document text
  • https://inge-com.fr/wp-content/uploads/2022/06/FaceFilter_Studio_3_Serial_Crackrar.pdfIn PDF document text
  • https://marketstory360.com/news/23278/microsoft-office-2016-activator-toolkit/In PDF document text
  • https://socialstudentb.s3.amazonaws.com/upload/files/2022/06/Q59zlLb4j4iFH6qyWpen_11_f04476ca54374fc6754e3aa29ef6917f_file.pdfIn PDF document text
  • https://bskworld.com/wp-content/uploads/2022/06/Alaskan_Truck_Simulator_Crack_Serial_Key_keygen.pdfIn PDF document text
  • https://gardeners-market.co.uk/advert/mwhswatertreatmentprinciplesanddesigndownloadstorrent/In PDF document text
  • https://sjdistributions.com/download-iclone-5-pro-crack/In PDF document text
  • https://mayoreoglobal.com/wp-content/uploads/2022/06/Flip_PDF_44918_Crack_Full.pdfIn PDF document text
  • https://businessbooster.page/wp-content/uploads/2022/06/Tharu_Kirana_Sinhala_Astrology_Softwarerar_29.pdfIn PDF document text
  • https://marketstory360.com/news/23280/the-experience-of-leandria-johnson-torrent/In PDF document text
  • http://tekbaz.com/2022/06/11/webcam-zone-trigger-pro-2-420-crack-full-pc-software/In PDF document text
  • https://demoforextrading.com/wp-In PDF document text
  • http://evacdir.com/philanthropic/rembert.rmxpccbqzgyguhjvzmvzc2lvbmfsideuni4xietlewdlbibhzw5lcmf0b3irmx/subaru/zg93bmxvywr8szf2tvrcagnutjhmreuytlrrne9utxhpvey4zkrjmu9uqjhmq2hos1ncwgizsmtjsepsyznnz1cxae5urkpruxlcv01pqlfsrvpk.throne/loceryl/loneIn 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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