Malicious PDF — malware analysis report

Heuristics 9

• 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.
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://starsearchtool.com/ZG93bmxvYWR8ZWY4ZVcxbGEzeDhNVFkxT0RBd05qWTVPWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA.interestingly=noose?leftfielder=sorenstam&prehistoric=ringpull&transaction=UGFzaW9uIFBvciBFbCBUcml1bmZvIDIgRW4gTGF0aW5vbAUGF PDF link annotation

  • http://www.giffa.ru/who/cidfontf1downloadforpc-best/In PDF document text
  • https://lapa.lv/generar-codigo-de-barras-en-visual-basic-6-hot/In PDF document text
  • https://mevoydecasa.es/swish-2-01-complete-suite-swishmax-templates-best-crack-zip-64-bit/In PDF document text
  • https://nimalanisanta.shop/sleepingdogslisteninginsavegamedownload-__link__/In PDF document text
  • https://bestrest.rest/wp-content/uploads/2022/07/Download_Real_Lives_2010_Full_Version_Free_REPACK.pdfIn PDF document text
  • https://footpathschool.org/2022/07/18/cisco-ip-communicator-v-8-6/In PDF document text
  • https://thekeymama.foundation/wp-content/uploads/2022/07/MiniKMS_Activator_V12_Office2010_VL_ENGexel.pdfIn PDF document text
  • https://cambodiaonlinemarket.com/techsmith-camtasia-studio-9-1-2-build-3011-x64-crack-tt-download-link/In PDF document text
  • http://arabmasr.com/wp-content/uploads/2022/07/chajeb.pdfIn PDF document text
  • https://teenmemorywall.com/multiecuscan-13-crack-new/In PDF document text
  • http://campustoast.com/wp-content/uploads/2022/07/Dragon_Quest_Monster_Battle_Road_Victory_JPNiso_TOP.pdfIn PDF document text
  • http://asopalace.com/?p=10655In PDF document text
  • http://lawcate.com/radioboss-v5-0-0-9-crack-_hot_/In PDF document text
  • http://www.giffa.ru/who/regsupreme-pro-1-4-0-48-multilanguage-crack-rar-keygen-new/In PDF document text
  • https://dincampinginfo.dk/wp-content/uploads/2022/07/Fisicoquimica_Laidler_129.pdfIn PDF document text
  • http://www.strelkabrno.cz/advert/artensoft-photo-mosaic-exclusive-keygen-generator/In PDF document text
  • http://debbiejenner.nl/ponto-secullum-4-keygen-41-new/In PDF document text
  • https://alafdaljo.com/alirs232upgradetoolv120downloader-free-full/In PDF document text
  • https://expressionpersonelle.com/wp-content/uploads/2022/07/VSCO_Film_Bundle_Pack_0107_For_ACR.pdfIn PDF document text
  • https://jelenalistes.com/wp-content/uploads/2022/07/Minecraft_Hentai_Texture_Pack_FULL.pdfIn PDF document text
  • http://starsearchtool.com/zg93bmxvywr8zwy4zvcxbgezedhnvfkxt0rbd05qwtvpwhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda.interestingly=noose?leftfielder=sorenstam&prehistoric=ringpull&transaction=ugfzaw9uifbvcibfbcbucml1bmzvidigrw4gtgf0aw5vbaugfIn 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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