Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d4540a80eee960f…

MALICIOUS

PDF

45.5 KB Created: 2021-06-03 20:38:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 42bc55c9aeec2b6bce230b169088fac6 SHA-1: 6430b5f3541da252c89130cb34d53ce0a83b3196 SHA-256: 5d4540a80eee960f2918f76cdb4e8915f5c32fc3433ffcb63f3e4e94a8931c9e
102 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which are SEO-optimized and point to download sites for games like Minecraft and Roblox. The primary URL, https://netcdn.online/app/479516143/minecraft-windows-10-edition-free-with-java-game-hack, is suspicious and likely leads to a malicious download. The document body text and heuristics confirm the presence of numerous external links designed to trick users into downloading potentially harmful software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

Heuristics 4

  • 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.
  • 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 https://netcdn.online/app/479516143/minecraft-windows-10-edition-free-with-java-game-hack PDF link annotation
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/minecraft-java-edition-free-trial_GM479516143.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/roblox-premium-free_GM431946152.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/androeed-ru-minecraft_GM479516143.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/how-to-get-stuff-that-cost-coins-free-mpe-master_GM406889139.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/coin-free-spin_GM406889139.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/minecraft-windows-10-free-code_GM479516143.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/coin-master-tiradas-gratis-link_GM406889139.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/minecraft-windows-10-edition-free-with-java_GM479516143.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/tiktok-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/how-to-make-free-robux_GM431946152.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/minecraft-java-server-hosting-free_GM479516143.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/hackear-juego-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/can-you-still-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/coin-master-daily-gift-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/minecraft-win-10-free_GM479516143.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/tower-of-hell-roblox-hack_GM431946152.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/coin-master-spin-hack-trick_GM406889139.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000053e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53E0 25540 bytes
SHA-256: b7a5f55b00bb4d789d449e97359e2d308141f814f73415e747cf369a273be5ba
font_01_sfnt_off00008d41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D41 18972 bytes
SHA-256: 6c20506a37f57d149a2d60f903306920f0d4438cf2101358cedc4e984bc12f18

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