Malicious PDF — malware analysis report

Heuristics 10

• 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.
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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/pacers?ZG93bmxvYWR8dnU4TVRock4zeDhNVFkxTkRjNE1EYzROM3g4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA=groins&sluices=videographers&tape=V2luUkFSIDUuOTAgQmV0YSAyIENyYWNrIFJlZyBLZXkgRnVsbCBWZXJzaW9uIFszMiA2NCBCaXRdV2l PDF link annotation

  • https://videospornocolombia.com/wp-content/uploads/2022/06/ENERCALC_Structural_Engineer_Library_10181231_crack.pdfIn PDF document text
  • https://videospornocolombia.com/wp-content/uploads/2022/06/Corel_Videostudio_Pro_X8_Torrent_Keygen.pdfIn PDF document text
  • http://www.ecomsrl.it/licence-file-for-matlab-2014a/In PDF document text
  • https://hofvanbreecamp.nl/wp-content/uploads/2022/06/SoBotta_Atla_de_anatoma_Humana_Vol_12.pdfIn PDF document text
  • https://3530elriconway.com/wp-content/uploads/2022/06/airplayserverwindowscrackkey.pdfIn PDF document text
  • https://bryophyteportal.org/portal/checklists/checklist.php?clid=16378In PDF document text
  • http://kwan-amulet.com/archives/1882741In PDF document text
  • http://jwbotanicals.com/ebook-imam-ghozali-spss-download-top/In PDF document text
  • http://peninsular-host.com/autosmotos.es/advert/football-manager-2020-crack-updated/In PDF document text
  • http://igpsclub.ru/social/upload/files/2022/06/5MsZwj2spUtTV27lZzsC_09_7db6b13103fb6507b7753d233a52ca22_file.pdfIn PDF document text
  • https://axisflare.com/upload/files/2022/06/CeZx8ruqp4wwIcYRIEhB_09_7db6b13103fb6507b7753d233a52ca22_file.pdfIn PDF document text
  • https://www.illuzzzion.com/socialnet/upload/files/2022/06/1JisMCjql2mXm1Yb14XG_09_bff47abc8c3343bb030c29c6254a3ee4_file.pdfIn PDF document text
  • https://www.5etwal.com/smartdraw-2013-enterprise-edition-with-keygen-exclusive-16/In PDF document text
  • https://yooyi.properties/wp-content/uploads/2022/06/Midi_Translator_Classic.pdfIn PDF document text
  • https://rebon.com.co/dublagem-middle-earth-shadow-of-mordor-pc-version-download-verified/In PDF document text
  • https://cancuntourssale.com/wp-content/uploads/2022/06/Kambakkht_Ishq_download_kickass_movies.pdfIn PDF document text
  • https://lit21tickets.com/wp-content/uploads/2022/06/benyhugh.pdfIn PDF document text
  • http://wolontariusz.com/advert/seafight-bot-program-download-top/In PDF document text
  • http://evacdir.com/pacers?zg93bmxvywr8dnu4tvrock4zedhnvfkxtkrjne1eyzrom3g4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda=groins&sluices=videographers&tape=v2luukfsiduuotagqmv0ysayienyywnrifjlzyblzxkgrnvsbcbwzxjzaw9uifszmia2ncbcaxrdv2lIn PDF document text
  • https://tiotrimunivtama.wixsite.com/goehurtmimind/post/rage-1-0-34-2015-trainerIn PDF document text
  • https://tuusticverdistcedo.wixsite.com/geicatitra/post/xerox-gsn-lock-crack-fullIn 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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