Malicious PDF — malware analysis report

Heuristics 9

• 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.
• 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://mydrugdir.com/c2l5YXNldCBiaWxpbWkgYW5kcmV3IGhleXdvb2QgcGRmIDEwOQc2l/hurdlers?isofix=ZG93bmxvYWR8Z2swWVhvMFkzeDhNVFkxTmpjM01UZ3hPSHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/mole/&verdana=lilac/nonsurgical.revolves PDF link annotation

  • https://zimbiosciences.com/netobjects-fusion-2015-crack-better-spread/In PDF document text
  • https://conexionfit.net/wp-content/uploads/2022/07/Ashampoo_Music_Studio_7016_Crack_Serial_Key.pdfIn PDF document text
  • https://ameeni.com/upload/files/2022/07/GEACPq8tMshzYJrGys4b_02_8c4a5d19f3d63f46b6c12ae9e2be1310_file.pdfIn PDF document text
  • https://iamstudent.net/wp-content/uploads/2022/07/Jet_Set_Radio_Mods.pdfIn PDF document text
  • https://marido-caffe.ro/2022/07/02/portable-micrografx-designer-9-0-1-pro-x86x64-19-updated/In PDF document text
  • https://shobeklobek.com/pedro-infante-48-grandes-exitos-rar-mega-updated/In PDF document text
  • http://jelenalistes.com/?p=9525In PDF document text
  • https://visitkeila.com/wp-content/uploads/2022/07/Practical_AudioVisual_Chinese_Vol_1_2_3_4_5_HOT.pdfIn PDF document text
  • http://www.momshuddle.com/upload/files/2022/07/l1uvNyMVaQoXSt1RuL1Y_02_ec79bdb14c148148fcfcf74449f373f9_file.pdfIn PDF document text
  • https://darblo.com/kawasaki-kazer-service-manual/In PDF document text
  • https://himarkacademy.tech/blog/index.php?entryid=5989In PDF document text
  • https://lucaslaruffa.com/getamped-2-dragon-ball-z-skin-cracked/In PDF document text
  • https://sprachennetz.org/advert/malware-hunter-1-96-0-685-crack-patch-2020-hot/In PDF document text
  • https://vendsmartclub.com/wp-content/uploads/2022/07/allizac.pdfIn PDF document text
  • https://www.sb20ireland.com/advert/image-trends-shineoff-2-1-5-photoshop-cs6-compatible-chingliu-crack-fixed/In PDF document text
  • http://it-labx.ru/?p=55808In PDF document text
  • https://telebook.app/upload/files/2022/07/ccJMBfA5vcmH5LKxU958_02_ec79bdb14c148148fcfcf74449f373f9_file.pdfIn PDF document text
  • https://perlevka.ru/advert/ice-age-collision-course-english-tamil-dubbed-movie-free-download-2021/In PDF document text
  • https://yukoleather.net/wp-content/uploads/2022/07/Zanjeer__The_Chain_Movie_720p_HOT_Download_Utorrent_Movies.pdfIn PDF document text
  • http://jaxskateclub.org/2022/07/02/hooligansgamehack/In PDF document text
  • http://mydrugdir.com/c2l5yxnldcbiawxpbwkgyw5kcmv3ighlexdvb2qgcgrmidewoqc2l/hurdlers?isofix=zg93bmxvywr8z2swwvhvmfkzedhnvfkxtmpjm01uz3hpshg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/mole/&verdana=lilac/nonsurgical.revolvesIn PDF document text
  • https://conexionfit.net/wp-content/uploads/2022/07/ashampoo_music_studio_7016_crack_serial_key.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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