Malicious PDF / .VIR — malware analysis report

Heuristics 7

• 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.
• 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://blogbasters.com/derailing/VGhlIEJvZHkgVlI6IEFuYXRvbXkgVmlld2VyVGh=ZG93bmxvYWR8QTNhTW1GNVkzWjhmREUyTlRreU1USTJPRFo4ZkRJMU9UQjhmQ2hOS1NCWGIzSmtjSEpsYzNNZ1cxaE5URkpRUXlCV01pQlFSRVpk&vaccine=doorway&gino=gurnsey.regulation PDF link annotation

  • https://prayersonline.org/wp-content/uploads/2022/07/SOK_MIN_Product_Key_Full.pdfIn PDF document text
  • https://calibikemedia.s3.us-west-1.amazonaws.com/wp-content/uploads/2022/07/30184423/janfryd.pdfIn PDF document text
  • https://opinapy.com/wp-content/uploads/2022/07/Starry_Moon_Island_2_Mobile_Stronghold_MP07.pdfIn PDF document text
  • https://salty-tundra-49719.herokuapp.com/Colours_and_Symbols.pdfIn PDF document text
  • https://speakerauthorblueprint.com/wp-content/uploads/2022/07/modebert.pdfIn PDF document text
  • https://connectingner.com/2022/07/31/the-majesti-soundtrack-crack-exe-file-free-download-latest/In PDF document text
  • https://pianoetrade.com/wp-content/uploads/2022/07/Spacecats_with_Lasers__The_Outerspace.pdfIn PDF document text
  • https://warm-reef-51234.herokuapp.com/Jade_Cicada.pdfIn PDF document text
  • https://texvasa.com/wp-content/uploads/2022/07/heinnils.pdfIn PDF document text
  • https://www.t-find.com/wp-content/uploads/2022/07/Ministry_of_Broadcast__Soundtrack.pdfIn PDF document text
  • https://pacific-everglades-75199.herokuapp.com/RPG_Maker_MZ__POP_Horror_City_Character_Pack_2.pdfIn PDF document text
  • http://www.italiankart.it/advert/miss-intelligence-keygenerator-2022/In PDF document text
  • https://beachvisitorguide.com/wp-content/uploads/2022/07/Pink_Hour_serial_number_and_product_key_crack__Free_Download_March2022.pdfIn PDF document text
  • http://barrillos.es/wp-content/uploads/2022/07/FUSER_Pass_The_Beats_Pack.pdfIn PDF document text
  • https://www.pianosix.com/tiger-tank-59-In PDF document text
  • https://prayersonline.org/wp-In PDF document text
  • https://calibikemedia.s3.us-west-1.amazonaws.com/wp-In PDF document text
  • https://opinapy.com/wp-content/uploads/2022/07/Starry_Moon_Island_2_In PDF document text
  • https://speakerauthorblueprint.com/wp-In PDF document text
  • https://connectingner.com/2022/07/31/the-majesti-soundtrack-crack-exe-In PDF document text
  • https://pianoetrade.com/wp-In PDF document text
  • https://www.t-find.com/wp-In PDF document text
  • https://pacific-everglades-75199.herokuapp.com/RPG_Maker_MZ__POP_HIn PDF document text
  • https://beachvisitorguide.com/wp-content/uploads/2022/07/Pink_Hour_seIn PDF document text
  • http://barrillos.es/wp-In PDF document text
  • http://blogbasters.com/derailing/vghliejvzhkgvli6iefuyxrvbxkgvmlld2vyvgh=zg93bmxvywr8qtnhtw1gnvkzwjhmreuytlrreu1ustjprfo4zkrjmu9uqjhmq2hos1ncwgizsmtjsepsyznnz1cxae5urkpruxlcv01pqlfsrvpk&vaccine=doorway&gino=gurnsey.regulationIn PDF document text
  • https://beachvisitorguide.com/wp-content/uploads/2022/07/pink_hour_serial_number_and_product_key_crack__free_download_march2022.pdfIn 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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