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/cultivate/determinant.runtime?/eliminative/ZWFjIGRvd25sb2FkIGZvbnQZWF/ZG93bmxvYWR8QmoxTW13d2ZId3hOalUwTnpjM01ETXlmSHd5TlRrd2ZId29UU2tnVjI5eVpIQnlaWE56SUZ0WVRVeFNVRU1nVmpJZ1VFUkdYUQ/ PDF link annotation

  • https://ukrainefinanceplatform.com/wp-content/uploads/2022/06/johhal.pdfIn PDF document text
  • https://efekt-metal.pl/witaj-swiecie/In PDF document text
  • https://www.vacanzenelcilento.info/wp-content/uploads/2022/06/kandvani.pdfIn PDF document text
  • https://www.raven-guard.info/driverpacksolution12fullfreedownloadoffline11/In PDF document text
  • https://npcfmc.com/wp-content/uploads/2022/06/Telecharger_Crack_Autocad_2008_Fr_Gratuit_Franais_HOT.pdfIn PDF document text
  • https://louistomlinsonfrance.com/wp-content/uploads/2022/06/Powerdirector_13_Ultimate_Keygen.pdfIn PDF document text
  • https://sfinancialsolutions.com/wp-content/uploads/2022/06/Matematika_SD_SD_SD.pdfIn PDF document text
  • https://ex0-sys.app/upload/files/2022/06/JCoOUrbpnrFlJz5IjUfK_09_7abe6b7472d0289d09d5bdfdd20be4b6_file.pdfIn PDF document text
  • https://www.apnarajya.com/nt6x-fast-installer-2021/In PDF document text
  • https://chgeol.org/samsung-gtc6712-india-odd-firmware/In PDF document text
  • https://rebuys.net/wp-content/uploads/2022/06/Fortnite_Multihack_2020_License_key_With_Crack_Download_Free.pdfIn PDF document text
  • http://www.giffa.ru/computerssoftware/farsi-nevis-maryam-4-free-free-download/In PDF document text
  • http://hshapparel.com/spectrasonic-trilian-response-code-hot/In PDF document text
  • http://www.rosesebastian.com/2022/06/09/factsage-6-3-__top__/In PDF document text
  • http://bookmanufacturers.org/autodata-2005-na-srpskom-free-downloadIn PDF document text
  • https://www.macroalgae.org/portal/checklists/checklist.php?clid=11405In PDF document text
  • https://thevkinfo.com/wp-content/uploads/2022/06/genjarr.pdfIn PDF document text
  • https://jgbrospaint.com/2022/06/09/cyberlink-powerdirector-14-ultimate-crack-only/In PDF document text
  • https://journeytwintotheunknown.com/2022/06/09/swords-and-sandals-2-gladiator-top-full-version-hacked/In PDF document text
  • https://alumbramkt.com/wp-content/uploads/2022/06/file_scavenger_32_keygen_free_37.pdfIn PDF document text
  • http://evacdir.com/cultivate/determinant.runtime?/eliminative/zwfjigrvd25sb2fkigzvbnqzwf/zg93bmxvywr8qmoxtw13d2zid3hoaluwtnpjm01etxlmshd5tlrrd2zid29uu2tnvji5evpiqnlawe56suz0wvrvefnvru1nvmpjz1vfukdyuq/In 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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