Malicious PDF — malware analysis report

Heuristics 10

• 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.
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://xtraserp.com/cirie.complexions?groskreutz=informationinquiry&hahnemann=R3RhIFZpY2UgQ2l0eSBDcmFja2VkIElwYSBEb3dubG9hZAR3R&peymann=archery&ZG93bmxvYWR8blMyYTNCMmRueDhNVFkyTWpZNE1ETTVNSHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA= PDF link annotation

  • https://thehomeofheroes.org/parallel-password-recovery-rar-module-v-2-0-upd-crack/In PDF document text
  • http://freemall.jp/wp-content/uploads/2022/09/Reikan_FoCal_Protorrentfileserverar.pdfIn PDF document text
  • http://freemall.jp/pitch-perfect-2-top-download-1080p-14.htmlIn PDF document text
  • http://www.rathisteelindustries.com/eximioussoft-business-card-designer-pro-v3-01-hot-crack/In PDF document text
  • http://www.khybersales.com/2022/09/10/tomtom-start-20-maps-crack-hot/In PDF document text
  • https://lear.orangeslash.com/advert/claudia-cepeda-story-of-o-the-series-11avi/In PDF document text
  • https://drmarcelougarte.com/wp-content/uploads/2022/09/javasho.pdfIn PDF document text
  • https://heronetworktv.com/wp-content/uploads/2022/09/Sven_Hassel_Comisarul_Pdf_Download_BEST.pdfIn PDF document text
  • http://findmallorca.com/mereka-bilang-saya-monyet-djenar-maesa-ayu-pdf-free-__exclusive__/In PDF document text
  • https://bloomhomeeg.com/wp-content/uploads/2022/09/hasdav.pdfIn PDF document text
  • https://energyconnectt.com/wp-content/uploads/2022/09/Jungo_WinDriver_1021_X86_X64.pdfIn PDF document text
  • http://findmallorca.com/x-force-autocad-electrical-2019-key-work/In PDF document text
  • http://descargatelo.net/?p=60031In PDF document text
  • https://omniumy.com/wp-content/uploads/2022/09/Photoshop_Cs6_Language_Pack_De_De_F_TOP.pdfIn PDF document text
  • https://parleafrique.com/wp-content/uploads/2022/09/Cubase764bitActivationcode2.pdfIn PDF document text
  • https://dorisclothing.com/krrish-2-telugu-movie-free-download-work/In PDF document text
  • https://www.mozideals.com/advert/din-vde-0580-pdf-download-link/In PDF document text
  • https://verasproperties.com/wp-content/uploads/2022/09/Driver_Placa_Mae_Intel_Corp_Emerald_Lake_2.pdfIn PDF document text
  • http://franaccess.com/wp-content/uploads/2022/09/Mugen_Fighting_Jam_10_45_HOT.pdfIn PDF document text
  • http://www.giffa.ru/who/logiciel-de-piratage-facebook-hack-v-6-2-gratuit/In PDF document text
  • http://xtraserp.com/cirie.complexions?groskreutz=informationinquiry&hahnemann=r3rhifzpy2ugq2l0esbdcmfja2vkielwysbeb3dubg9hzar3r&peymann=archery&zg93bmxvywr8blmyytncmmruedhnvfkytwpzne1ettvnshg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda=In PDF document text
  • http://freemall.jp/wp-content/uploads/2022/09/Reikan_FoCal_ProtorrentfileserverarIn 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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