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://signforcover.com/avoided/.hagestedt/ZG93bmxvYWQgcHJvIHRvb2xzIDEwIGlsb2sgY3JhY2sgbWFjIHRvcnJlbnQZG9/ZG93bmxvYWR8V2M1YURBMmRYeDhNVFkxTnpBMk56RTFOSHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/janas/intamcy.benson PDF link annotation

  • http://playfanfgame.com/wp-content/uploads/2022/07/Tipard_Mac_Video_Enhancer_9116_Full_Crack.pdfIn PDF document text
  • http://namiflorist.com/?p=5351In PDF document text
  • https://www.reperiohumancapital.com/system/files/webform/WavesAPICollectionVSTRTASv10AiRrar-crack.pdfIn PDF document text
  • http://ecageophysics.com/?p=10957In PDF document text
  • https://thoitranghalo.com/2022/07/06/x-force-2021-keygen-structural-bridge-design-2019-64-bit-free-download/In PDF document text
  • http://www.ambulatorioveterinarioiaccarino.it/wp-content/uploads/2022/07/Presto_PageManager_9_Pro_2021_Crackr.pdfIn PDF document text
  • https://lynonline.com/2022/07/06/autocom-2011-3-keygen-link/In PDF document text
  • https://www.washingtonct.org/sites/g/files/vyhlif1396/f/uploads/2021_washington_audit_report.pdfIn PDF document text
  • https://marketstory360.com/news/50337/imindmap-6-serial-number187/In PDF document text
  • https://khakaidee.com/fabricar-muebles-en-melamina-pdf-download-better/In PDF document text
  • https://thegoodsreporter.com/uncategorized/kmsautonet20151442016rar-install/In PDF document text
  • http://barrillos.es/wp-content/uploads/2022/07/HD_Online_Player_ninpuu_Sentai_Hurricanger_Shushutto__HOT.pdfIn PDF document text
  • https://solaceforwomen.com/aps-c-dv-shweta-font/In PDF document text
  • https://together-19.com/upload/files/2022/07/PdJMnj9WiOQSCJ6Lw5ZJ_06_468ce0c5d1b0115cc00a163f8d25c7f0_file.pdfIn PDF document text
  • https://teegroup.net/pastoreo-racional-voisin-libro-pdf-15l/In PDF document text
  • https://restor8tivehr.com/wp-content/uploads/2022/07/jambert.pdfIn PDF document text
  • http://www.ambulatorioveterinarioiaccarino.it/wp-In PDF document text
  • https://together-19.com/upload/files/2022/07/PdJMnj9WiOQSCJ6Lw5ZJ_06_468ce0c5d1b0115cc00a163f8d25c7f0_fIn PDF document text
  • http://signforcover.com/avoided/.hagestedt/zg93bmxvywqgchjvihrvb2xzidewiglsb2sgy3jhy2sgbwfjihrvcnjlbnqzg9/zg93bmxvywr8v2m1yurbmmryedhnvfkxtnpbmk56rtfoshg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/janas/intamcy.bensonIn PDF document text
  • http://playfanfgame.com/wp-content/uploads/2022/07/tipard_mac_video_enhancer_9116_full_crack.pdfIn PDF document text
  • https://trello.com/c/hCg2lQ5S/39-black-ink-crack-top-serial-keylIn PDF document text
  • https://trello.com/c/rrlxX8Bf/98-autodata-338-language-pack-fin-newIn PDF document text
  • https://lowenthal.house.gov/sites/lowenthal.house.gov/files/webform/internships/cranemmy914.pdfIn PDF document text
  • https://silkbridhosdical.wixsite.com/reseshoti/post/clave-para-nti-media-maker-9rar-extra-qualityIn 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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