Malicious PDF — malware analysis report

Static analysis result for SHA-256 52b74c141c990ab1…

MALICIOUS

PDF

132.1 KB Created: 2022-06-10 08:33:53 +02:00 Authoring application: quirbri (via PDF Master 1.0.1) First seen: 2026-05-15
MD5: 82bab9aaa4b273bf328ecf3bfca12be9 SHA-1: 7ea5e31ce380c1a33a772eb751432370fd01bd65 SHA-256: 52b74c141c990ab14413cbba9e38c33d19eb1bba346a357d28455803e5faa7ff
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document functions as a lure, employing a link farm to direct users towards cracked software or password-protected archives. The heuristics indicate a high likelihood of social engineering, specifically a browser extension installation lure and a password-protected archive handoff, designed to bypass security scanning. The embedded URLs and the document body text confirm the intent to trick users into downloading potentially malicious files.

Machine Learning

  • Nyx PDF Classifier clean score 0.0026

Heuristics 7

  • 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 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.
  • 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
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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.
  • 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/actor/clinching/ammoniated/encroach=tortoises/exclusive/hyperfocus/c3VwZXIgcGhpc2hlciAxLjAgZG93bmxvYWQgc29mdG9uaWMgZm9yIDI1c3V.ZG93bmxvYWR8QWg2WkRkM2MzeDhNVFkxTkRjNE1EZzNPWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA PDF link annotation
    • http://kramart.com/jmp-pro-10-license-high-quality-crack/In PDF document text
    • https://cine-africain.com/garleli/alberts-easy-activator-6-15/In PDF document text
    • https://frozen-basin-22515.herokuapp.com/xhackingcom_universal_password_hackerrar.pdfIn PDF document text
    • https://npcfmc.com/wp-content/uploads/2022/06/Download_e_Audio_jaanam_samjha_karo.pdfIn PDF document text
    • https://healthteb.com/wp-content/uploads/2022/06/davikal.pdfIn PDF document text
    • https://alumbramkt.com/wp-content/uploads/2022/06/raymbree.pdfIn PDF document text
    • http://haylingbillyheritage.org/wp-content/uploads/2022/06/Jag_Justicia_Militar_Audio_Latino_Descarga_Gratis.pdfIn PDF document text
    • https://citywharf.cn/xena-warrior-princess-complete-seasons-1-6-eng-dvdrip-hit/In PDF document text
    • https://vukau.com/upload/files/2022/06/oRCDbjIFeMybY9hxkBoe_10_50eed6dc9e8b9fff9a8fb41a442e6951_file.pdfIn PDF document text
    • http://www.terrainsprives.com/wp-content/uploads/2022/06/conmaka.pdfIn PDF document text
    • https://gitess.com/wp-content/uploads/2022/06/obrazac_za_saglasnost_za_putovanje_dece_bez_roditelja.pdfIn PDF document text
    • https://novinmoshavere.com/lectra-modaris-v7r2-sp7-and-lectra-diamino-v6r2-sp4-download-pc-repack/In PDF document text
    • http://evapacheco.es/wp-content/uploads/2022/06/blanemo.pdfIn PDF document text
    • https://moniispace.com/upload/files/2022/06/9pOsLM2ebeFrNXMKIaZH_10_50eed6dc9e8b9fff9a8fb41a442e6951_file.pdfIn PDF document text
    • http://gc.pknowledge.eu/wp-content/uploads/2022/06/CRACK_XPlane_FlyJSim_CIVA_Navigation_System_for_FlyJSim_732_.pdfIn PDF document text
    • https://stompster.com/upload/files/2022/06/R2tXl3DNZcco4P3I2WsG_10_50eed6dc9e8b9fff9a8fb41a442e6951_file.pdfIn PDF document text
    • https://numangaclub.com/wp-content/uploads/2022/06/imagdero.pdfIn PDF document text
    • https://enigmatic-caverns-27722.herokuapp.com/dawawoo.pdfIn PDF document text
    • https://www.repaintitalia.it/astro-vision-life-sign-software-with-crack/In PDF document text
    • http://haylingbillyheritage.org/wp-In PDF document text
    • https://vukau.com/upload/files/2022/06/oRCDbjIFeMybY9hxkBoe_10_50eed6dc9e8b9fff9a8fb41a44In PDF document text
    • https://gitess.com/wp-In PDF document text
    • https://novinmoshavere.com/lectra-modaris-v7r2-sp7-and-lectra-diamino-v6r2-sp4-download-pc-In PDF document text
    • https://moniispace.com/upload/files/2022/06/9pOsLM2ebeFrNXMKIaZH_10_50eed6dc9e8b9fff9a8fbIn PDF document text
    • http://gc.pknowledge.eu/wp-content/uploads/2022/06/CRACK_XPlane_FlyJSim_CIVA_Navigation_SyIn PDF document text
    • https://stompster.com/upload/files/2022/06/R2tXl3DNZcco4P3I2WsG_10_50eed6dc9e8b9fff9a8fb41In PDF document text
    • http://gc.pknowledge.eu/wp-content/uploads/2022/06/crack_xplane_flyjsim_civa_navigation_system_for_flyjsim_732_.pdfIn PDF document text
    • http://evacdir.com/actor/clinching/ammoniated/encroach=tortoises/exclusive/hyperfocus/c3vwzxigcghpc2hlciaxljagzg93bmxvywqgc29mdg9uawmgzm9yidi1c3v.zg93bmxvywr8qwg2wkrkm2mzedhnvfkxtkrjne1ezznpwhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbdaIn PDF document text
    • https://isuntorripanpoi.wixsite.com/raphenldeven/post/printer-toner-reset-firmware-fix-samsung-ml-2160-23In PDF document text
    • http://www.tcpdf.orgIn PDF document text
    • https://isuntorripanpoi.wixsite.com/raphenldeven/post/printer-toner-reset-firmware-fix-samsung-In 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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00001d92.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1D92 120140 bytes
SHA-256: a217f12862e0ff75203bdd4136ca0d68471050be46bb09aed5306898926ffdd4
font_01_sfnt_off0000cb75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB75 76772 bytes
SHA-256: 07ce6fea3c98bf59133021be55ce9147f9c26365efe580a2a4f82130ca697f54