Malicious PDF / .VIR — 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/wgasa/anniversaries/bikers/headstones/theloving.leen.UlRMIFNLSSBKVU1QSU5HIDIwMDcgW0VOR10uSVNPUlR.ogilvy/ZG93bmxvYWR8emw4TkdRek5ueDhNVFkxTlRnME1qazRNWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA PDF link annotation

  • https://ergotherapie-wahmkow.de/gta-vice-city-deluxe-english-language-pack/In PDF document text
  • https://www.digitalpub.ma/advert/christophe-felder-gratuit-download-pdf/In PDF document text
  • http://zakadiconsultant.com/?p=9578In PDF document text
  • http://marqueconstructions.com/2022/06/22/mortal-kombat-9-psp-iso-download-_top_/In PDF document text
  • https://aulagarema.milaulas.com/blog/index.php?entryid=17638In PDF document text
  • https://social.halvsie.com/upload/files/2022/06/tRvANC8bjvrd5OhPxMSu_22_5cfc58b505584176e8c948e0fe1e7335_file.pdfIn PDF document text
  • https://towntexas.com/wp-content/uploads/2022/06/Sijilcutisakitpdfdownload_EXCLUSIVE.pdfIn PDF document text
  • https://theangelicconnections.com/wii-wbfs-nes-roms/In PDF document text
  • https://luxvideo.tv/2022/06/22/conduct-certificate-tamilnadu-paid-download/In PDF document text
  • https://northshorerealtysanpancho.com/advert/zawgyi-font-for-windows-7-32bit-free-download-full/In PDF document text
  • http://www.giffa.ru/businesssmall-business/edgecam-2015-r1-torrent/In PDF document text
  • http://bookmanufacturers.org/book-review-just-giving-slate-star-codexIn PDF document text
  • https://www.handmademarket.de/wp-content/uploads/2022/06/codigo_de_desbloqueo_de_solid_converter_pdf_v7.pdfIn PDF document text
  • https://arlingtonliquorpackagestore.com/odm-unlock-v1-20-download-w181-motorola-hot/In PDF document text
  • https://zwergenburg-wuppertal.de/advert/tech-talk-elementary-ee-reader-by-the-wheelman-group/In PDF document text
  • https://csermoocf6ext.blog/wp-content/uploads/2022/06/crack_antidote_8_v3_gratuit_upd.pdfIn PDF document text
  • https://qflash.es/universal-maps-downloader-9-37-crack-is-here-latest/In PDF document text
  • http://nuihoney.com/wp-content/uploads/2022/06/waydcha.pdfIn PDF document text
  • https://positiverne.dk/wp-content/uploads/reinjava.pdfIn PDF document text
  • http://www.ponder-ks.org/wp-content/uploads/2022/06/SITES_PARA_DOWNLOAD_DA_TABELA_BRASINDICE_E_SIMPROpdf_REPACK.pdfIn PDF document text
  • https://social.halvsie.com/upload/files/2022/06/tRvANC8bjvrd5OhPxMSu_22_5cfc58b5In PDF document text
  • https://towntexas.com/wp-In PDF document text
  • https://northshorerealtysanpancho.com/advert/zawgyi-font-for-windows-7-32bit-free-In PDF document text
  • https://www.handmademarket.de/wp-In PDF document text
  • https://arlingtonliquorpackagestore.com/odm-unlock-v1-20-download-w181-motorola-In PDF document text
  • https://zwergenburg-wuppertal.de/advert/tech-talk-elementary-ee-reader-by-the-wheelman-In PDF document text
  • https://csermoocf6ext.blog/wp-In PDF document text
  • http://www.ponder-ks.org/wp-content/uploads/2022/06/SITES_PARA_DOWNLOAD_DIn PDF document text
  • http://evacdir.com/wgasa/anniversaries/bikers/headstones/theloving.leen.ulrmifnlssbkvu1qsu5hidiwmdcgw0vor10usvnpulr.ogilvy/zg93bmxvywr8emw4tkdrek5uedhnvfkxtlrnme1qazrnwhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbdaIn 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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