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://evacdir.com/aquatinted.emJpcmthIGhhZGlzZSBidWhhcmlqYSBpIG11c2xpbSBwZGYgZG93bmxvYWQemJ?glittering=ZG93bmxvYWR8Z3k1YkdabU5ueDhNVFkxTkRrNE9URTJNbng4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA&barlas&flirts=decency PDF link annotation

  • http://kwan-amulet.com/wp-content/uploads/2022/06/3d_Max_Models_Utorrent.pdfIn PDF document text
  • https://kramart.com/livebox-2-unlocker-windows-downloadl/In PDF document text
  • https://www.advocaatdebruyne.be/wp-content/uploads/2022/06/Immo_Universal_Decoding_32_Keygen_Downloads.pdfIn PDF document text
  • https://freebuyertraffic.com/global-operations-v1-0-work-cracked/In PDF document text
  • https://aiplgurugram.com/wp-content/uploads/2022/06/Flight1wrappercrack.pdfIn PDF document text
  • https://shiphighline.com/upd-crack-msact-plus-1-0-8-b2-by-ratiborusbabupc/In PDF document text
  • https://www.nos-artisans-createurs.com/wp-content/uploads/2022/06/AutoDesk_Within_Medical_2019_X64_64bit_Product_Key_And_Xforce_Keygen.pdfIn PDF document text
  • https://www.kmjgroupfitness.com/wp-content/uploads/2022/06/Counter_Strike_16_Maps_Free_PATCHED_Download_Aa_Dima.pdfIn PDF document text
  • https://genkin-log.com/wp-content/uploads/2022/06/Paragon_Hard_Disk_Manager_15_Business_10125772_Serial_Key.pdfIn PDF document text
  • https://www.vakantiehuiswinkel.nl/patched-srs-audio-essentials-v1-2-3-12-final-by-bobiras2009/In PDF document text
  • http://www.interprys.it/?p=19339In PDF document text
  • https://social.halvsie.com/upload/files/2022/06/CovGBKDNa1viOVhJR4vP_12_6711dae947d8718799ae4991f310590b_file.pdfIn PDF document text
  • https://medcoi.com/network/upload/files/2022/06/EaepwMg6J11PHMuibCUL_12_78d0573005caa47af73717ff0e9d29fa_file.pdfIn PDF document text
  • https://solaceforwomen.com/blackeye-exe-download/In PDF document text
  • https://seisystem.it/wp-content/uploads/2022/06/Carenado_B200_King_Air_Hd_Series_Fsx_Torrent.pdfIn PDF document text
  • https://leykaclub.com/wp-content/uploads/2022/06/win_spy_software_83_pro_crack.pdfIn PDF document text
  • http://kramart.com/imediatouch-radio-automation-broadcast-software-crack-19-top/In PDF document text
  • https://jimmyvermeulen.be/cyberghost-vpn-10-2-9-2555-crack/In PDF document text
  • https://rxharun.com/train-to-busan-hindi-movie-mp4-downloadl-best/In PDF document text
  • https://polskikapital.org/wp-content/uploads/2022/06/yessilea.pdfIn PDF document text
  • http://evacdir.com/aquatinted.emjpcmthighhzglzzsbidwhhcmlqysbpig11c2xpbsbwzgygzg93bmxvywqemj?glittering=zg93bmxvywr8z3k1ykdabu5uedhnvfkxtkrrne9urtjnbng4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda&barlas&flirts=decencyIn 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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