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.
• 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.
• 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://bestsmartfind.com/biscuits/RG93bmxvYWQgVHVtYmxlYnVncyAyIEZvciBGcmVlIEZ1bGwgVmVyc2lvbgRG9/?ingvar=ZG93bmxvYWR8VDNVTVRFMWFqUjhmREUyTlRneU1UazBOek44ZkRJMU9UQjhmQ2hOS1NCWGIzSmtjSEpsYzNNZ1cxaE5URkpRUXlCV01pQlFSRVpk&centrino=gastroesophageal PDF link annotation

  • https://secondhandbikes.co.uk/advert/silhouette-studio-business-edition-keygen-mac-patched/In PDF document text
  • https://hogeorgia.com/wp-content/uploads/2022/07/chaedwy.pdfIn PDF document text
  • https://navchaitanyatimes.com/wp-content/uploads/2022/07/chagab.pdfIn PDF document text
  • https://mevoydecasa.es/wp-content/uploads/2022/07/CRACK_Carrier_Block_Load_V415_NEW.pdfIn PDF document text
  • https://timelessflair.com/wp-content/uploads/2022/07/terrsad.pdfIn PDF document text
  • https://knoxvilledirtdigest.com/wp-content/uploads/2022/07/walwen-2.pdfIn PDF document text
  • http://shop.chatredanesh.ir/?p=89009In PDF document text
  • https://countymonthly.com/advert/edirol-orchestral-download-zip-upd/In PDF document text
  • https://www.synergytherm.com/wp-content/uploads/2022/07/chaquil.pdfIn PDF document text
  • https://nysccommunity.com/advert/battle-realms-trainer-v1-0/In PDF document text
  • https://slab-bit.com/la-seduzione-1973-subtitles/In PDF document text
  • https://australiaspage.com.au/wp-content/uploads/2022/07/free_download_idm_615_full_version_with_crack_and_patch.pdfIn PDF document text
  • https://xn--80aagyardii6h.xn--p1ai/nicolae-manolescu-istoria-critica-a-literaturii-romane-pdf-link-128681/In PDF document text
  • http://www.divinejoyyoga.com/2022/07/29/apocalypto2fullmovieinenglishversionsubtitledownload-betters/In PDF document text
  • https://kramart.com/asrock-z68-extreme3-gen3-bios-130-download-free/In PDF document text
  • https://webtium.com/wp-content/uploads/2022/07/oligra.pdfIn PDF document text
  • https://perlevka.ru/advert/engineering-mechanics-statics-meriam-7th-edition-solutions-manual-rar/In PDF document text
  • https://www.nooganightlife.com/wp-content/uploads/2022/07/Constantine_2_FULL_Download_Dublado_Avi.pdfIn PDF document text
  • http://noticatracho.com/?p=41680In PDF document text
  • http://www.chandabags.com/spiderman-1-game-free-download-for-pc-full-version-exclusive/In PDF document text
  • http://bestsmartfind.com/biscuits/rg93bmxvywqgvhvtymxlynvncyayiezvcibgcmvliez1bgwgvmvyc2lvbgrg9/?ingvar=zg93bmxvywr8vdnvtvrfmwfqujhmreuytlrneu1uazboek44zkrjmu9uqjhmq2hos1ncwgizsmtjsepsyznnz1cxae5urkpruxlcv01pqlfsrvpk&centrino=gastroesophagealIn PDF document text
  • https://secondhandbikes.co.uk/advert/silhouette-studio-business-edition-keygenIn 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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