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/itemised.stillborn/causeless=M2RzIE1heCBMdCAyMDE5IDMyIEJpdCBDcmFjayBUb3JyZW50IERvd25sb2FkM2R/fortnightly=ZG93bmxvYWR8TE81WTNocVpYeDhNVFkxTkRjNE1EYzROM3g4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/pelusi=torzo PDF link annotation

  • https://dialog1918.ru/wp-content/uploads/2022/06/karslaza.pdfIn PDF document text
  • https://festileaks.com/wp-content/uploads/2022/06/nokia_bb5_code_usb_sender_exe_248.pdfIn PDF document text
  • https://ezeizanoticias.com.ar/advert/ppt-perfil-pendidikan-pkn/In PDF document text
  • https://biorepo.neonscience.org/portal/checklists/checklist.php?clid=4271In PDF document text
  • https://cap-hss.online/wp-content/uploads/2022/06/MalwareBytes_Anti_Malware_Pro_Serial_Keygen_Crack_For_LifeTime_LINK.pdfIn PDF document text
  • https://www.pinio.eu/wp-content/uploads//2022/06/dogar_surgery_book_2021_free_download.pdfIn PDF document text
  • http://xn----dtbhabafp9bcmochgq.xn--p1ai/wp-content/uploads/2022/06/erbunit.pdfIn PDF document text
  • http://www.ndvadvisers.com/wp-content/uploads/2022/06/Ansys_Hfss_1502_X64_License_UPD_Crack_3.pdfIn PDF document text
  • https://eqlidi.ir/wp-content/uploads/2022/06/tiajos.pdfIn PDF document text
  • https://mskprotect24.de/wp-content/uploads/2022/06/virgui.pdfIn PDF document text
  • https://520bhl.com/wp-content/uploads/2022/06/DevilMayCry5DeluxeEditionCrackSerialKey.pdfIn PDF document text
  • https://ijaa.tn/wp-content/uploads/2022/06/zesquan.pdfIn PDF document text
  • https://www.gayleatherbiker.de/upload/files/2022/06/rEmnzGi7tKtfwz8iTEl6_09_639491870acc7714f0f13f5783d0e7d8_file.pdfIn PDF document text
  • https://swisshtechnologies.com/hiri-poda-wessa-full-sinhala-film-download/In PDF document text
  • http://mangalamdesigner.com/?p=17840In PDF document text
  • https://mystery-home-shop.com/wp-content/uploads/2022/06/Neon_Genesis_Evangelion_The_End_Of_Evangelion_Movie_With_Eng.pdfIn PDF document text
  • https://2z31.com/wp-content/uploads/2022/06/WINLIVE_SYNTH_DRIVER_Abilitare_MIDI_DEVICE_VERIFIED.pdfIn PDF document text
  • https://www.riseupstar.com/upload/files/2022/06/syXXnCiSGkD4wb6TwxIm_09_22059a4a76a4472de1eaea157fa5afca_file.pdfIn PDF document text
  • https://www.dripworld.com/black-magic-cable-tv-software-free-full-download-torrent/In PDF document text
  • https://botdirectory.net/wp-content/uploads/2022/06/Battlestations_pacific_unlock_all_units_mod_pc.pdfIn PDF document text
  • http://evacdir.com/itemised.stillborn/causeless=m2rzie1hecbmdcaymde5idmyiejpdcbdcmfjaybub3jyzw50iervd25sb2fkm2r/fortnightly=zg93bmxvywr8te81wtnocvpyedhnvfkxtkrjne1eyzrom3g4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/pelusi=torzoIn PDF document text
  • http://www.ndvadvisers.com/wp-content/uploads/2022/06/ansys_hfss_1502_x64_license_upd_crack_3.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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