Malicious PDF — 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://evacdir.com/discovered]/documents/modulating?bGUgY29sbGVjdGlvbm5ldXIgZGUgcmVjZXR0ZXMgc2VyaWFsbGU=knowledgable&sarawak=ZG93bmxvYWR8ZGM2WVhSeWRYeDhNVFkxTkRnNU16RTVNWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA PDF link annotation

  • https://facenock.com/upload/files/2022/06/bIw4quTN5uZEXZSjoY9l_11_5188f528c5fc3cbc1cb317c7c2063bd7_file.pdfIn PDF document text
  • https://wocess.com/wp-content/uploads/2022/06/Proxycap_5_2_FREE_Keygen_12.pdfIn PDF document text
  • http://aeptel.com/wp-content/uploads/2022/06/immyud.pdfIn PDF document text
  • https://www.nachhilfe-vermittlung.com/magazin/advert/serious-sam-4-planet-badass-activation-code-offline/In PDF document text
  • http://officinabio.it/?p=14987In PDF document text
  • http://ledromadairemalin.eu/?p=12431In PDF document text
  • https://thecryptobee.com/tibia-bot-ng-792-crack-chomikuj-gry-top/In PDF document text
  • https://moonrivernursingcareers.com/wp-content/uploads/2022/06/danykah.pdfIn PDF document text
  • https://videospornocolombia.com/wp-content/uploads/2022/06/Driver_Volante_Leadership_Gamer_Twin_Turbo_Download_PATCHED_25.pdfIn PDF document text
  • https://quantacrowd.com/wp-content/uploads/2022/06/lawiter.pdfIn PDF document text
  • https://bodhirajabs.com/cultural-history-of-india-by-om-prakash-pdf-22/In PDF document text
  • https://travelvee.com/wp-content/uploads/2022/06/CorelDRAW_Graphics_Suite_X6_1610843_32_Bit_keygenCORE_C_64_Bit.pdfIn PDF document text
  • https://baseheadinc.com/wp-content/uploads/2022/06/gabbern.pdfIn PDF document text
  • https://fortworth-dental.com/wp-content/uploads/2022/06/80er_Hits_Top_100_Download_Kostenlos_EXCLUSIVE.pdfIn PDF document text
  • https://citywharf.cn/xforce-keygen-autocad-electrical-2013-64-bit-windows-8/In PDF document text
  • https://www.chiesacristiana.eu/2022/06/11/accounting-software-for-free-download-with-full-version-new/In PDF document text
  • https://hiawathahomes.org/wp-content/uploads/2022/06/adveber.pdfIn PDF document text
  • https://adview.ru/wp-content/uploads/2022/06/eujaglor.pdfIn PDF document text
  • http://www.brickandmortarmi.com/iveco-power-truck-01-2013-torrent-hot/In PDF document text
  • http://www.chelancove.com/cs-1-6-gl-loader-168/In PDF document text
  • https://facenock.com/upload/files/2022/06/bIw4quTN5uZEXZSjoY9l_11_5188f528c5fc3cIn PDF document text
  • https://www.nachhilfe-vermittlung.com/magazin/advert/serious-sam-4-planet-badass-In PDF document text
  • https://videospornocolombia.com/wp-content/uploads/2022/06/Driver_Volante_LeadershipIn PDF document text
  • https://travelvee.com/wp-content/uploads/2022/06/CorelDRAW_Graphics_Suite_X6_1610In PDF document text
  • https://fortworth-dental.com/wp-In PDF document text
  • https://www.chiesacristiana.eu/2022/06/11/accounting-software-for-free-download-with-full-In PDF document text
  • http://evacdir.com/discovered]/documents/modulating?bgugy29sbgvjdglvbm5ldxigzgugcmvjzxr0zxmgc2vyawfsbgu=knowledgable&sarawak=zg93bmxvywr8zgm2wvhsewryedhnvfkxtkrnnu16rtvnwhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbdaIn PDF document text
  • https://www.chiesacristiana.eu/2022/06/11/accounting-software-for-free-downloadIn 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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