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.
• PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
  PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
• 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://sitesworlds.com/?wittchen=discusses/ansbach&blacklip=SmFhbmkgRHVzaG1hbiBTdWJ0aXRsZXMgRnJlZSBEb3dubG9hZASmF&pentathlon=ZG93bmxvYWR8ZXczWlRObE5IeDhNVFkxTmpjeE1qTXdOWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA PDF link annotation

  • https://bromedistrict.com/maleficent-movie-download-in-hindi-kickass-top/In PDF document text
  • http://www.xpendx.com/wp-content/uploads/2022/07/Sex_Stories_Books_In_Marathi_Language_HOT.pdfIn PDF document text
  • https://goandwork.net/wp-content/uploads/2022/07/kahhar.pdfIn PDF document text
  • https://oualie.dev/wp-content/uploads/2022/07/Dr_Fone_For_Ios_Registration_Crack_High_Quality.pdfIn PDF document text
  • http://pantogo.org/wp-content/uploads/2022/07/Air_Supply_Bonus_full_album_zip.pdfIn PDF document text
  • http://www.ressn.com/download-wifi-router-keygen-link-apk/In PDF document text
  • https://hkcapsule.com/2022/07/02/jackson-guitar-serial-number-japanl-__exclusive__/In PDF document text
  • https://jariosos.com/upload/files/2022/07/fOcQugLqfld3thqXLVWD_02_103a6e939bbf208bb7fec97a2817830f_file.pdfIn PDF document text
  • http://www.bullardphotos.org/wp-content/uploads/2022/07/Mercedes_W203_Instrukcja_Obslugi.pdfIn PDF document text
  • http://www.pickrecruit.com/object-oriented-programming-using-c-by-tasleem-mustafa-rapidshare/In PDF document text
  • http://eventaka.com/?p=23294In PDF document text
  • https://parsiangroup.ca/2022/07/joshua-goodman-vs-brooklyn-bodywrecker-best/In PDF document text
  • http://sawkillarmoryllc.com/f1challenge9902crack-freepasswordonline/In PDF document text
  • https://www.cateringguiden.no/wp-content/uploads/2022/07/HD_Online_Player_cimco_edit_v5_free_download_crack.pdfIn PDF document text
  • https://repliquetees.com/advert/gta-eflc-patch-crack-1-1-2-0-23-link/In PDF document text
  • http://jwmarine.org/hd-online-player-mankatha-full-hot-movie-in-tamil-hd-1080/In PDF document text
  • https://formyanmarbymyanmar.com/upload/files/2022/07/r2IMv8EkqGAOSLkdATYr_02_0adfc8a65c800e1ee24a008eed2a76ad_file.pdfIn PDF document text
  • https://www.greatescapesdirect.com/2022/07/jai-bolo-telangana-video-songs-hd-1080p-36/In PDF document text
  • https://mercatoposto.com/wp-content/uploads/2022/07/adobe_cs6_master_collection_winmac_xforcezip14.pdfIn PDF document text
  • https://www.sprutha.com/wp-content/uploads/2022/07/santuye.pdfIn PDF document text
  • http://sitesworlds.com/?wittchen=discusses/ansbach&blacklip=smfhbmkgrhvzag1hbibtdwj0axrszxmgrnjlzsbeb3dubg9hzasmf&pentathlon=zg93bmxvywr8zxczwlrobe5iedhnvfkxtmpjee1qtxdowhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbdaIn 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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