Malicious PDF — malware analysis report

Static analysis result for SHA-256 306ab8d6f4e93c88…

MALICIOUS

PDF

34.3 KB Created: 2021-06-26 22:22:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: ed240e53832dde34d55e3745d5c007a8 SHA-1: 58ab86603bf626c082ded63541f1f86f335611a8 SHA-256: 306ab8d6f4e93c88e9a600519752b82aa8a609aa390873edc1d97e563bae8ffc
82 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs and a document body that promotes game hacks and cheats, aiming to lure users into downloading malicious content. The presence of a "password-protected archive lure" heuristic suggests the downloaded content may be encrypted to evade initial security scans. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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
  • 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://netcdn.co/app/431946152/pbb-hacked-roblox-game-hack
    • http://library.yamasi.ac.id//repository/moonactive-free-spins-2021_GM406889139.pdf
    • http://library.yamasi.ac.id/repository/best-sword-in-fight-the-monster-roblox-cheat_GM431946152.pdf
    • http://library.yamasi.ac.id//repository/how-to-get-robux-easy_GM431946152.pdf
    • http://library.yamasi.ac.id/repository/roblox-ro-port-tycoon-cheats_GM431946152.pdf
    • http://library.yamasi.ac.id//repository/coin-master-fan_GM406889139.pdf
    • http://library.yamasi.ac.id//repository/coin-master-hack-spin-160-pro_GM406889139.pdf
    • http://library.yamasi.ac.id//repository/fb-coin-master-hack_GM406889139.pdf
    • http://library.yamasi.ac.id/repository/coin-master-free-coins-and-spins-link-today_GM406889139.pdf
    • http://library.yamasi.ac.id/repository/minecraft-apk-download-v1-144-2-free_GM479516143.pdf
    • http://library.yamasi.ac.id/repository/roblox-login-hack_GM431946152.pdf
    • http://library.yamasi.ac.id/repository/cheats-glitches-for-roblox_GM431946152.pdf
    • http://library.yamasi.ac.id//repository/como-hackear-el-juego-coin-master_GM406889139.pdf
    • http://library.yamasi.ac.id/repository/free-minecraft-server-hosting-24-7_GM479516143.pdf
    • http://library.yamasi.ac.id//repository/how-can-i-get-free-spins-on-coin-master_GM406889139.pdf
    • http://library.yamasi.ac.id//repository/coin-master-game-2021-free-spin-link_GM406889139.pdf
    • http://library.yamasi.ac.id//repository/free-spins-on-coin-master-links-2021_GM406889139.pdf
    • http://library.yamasi.ac.id/repository/enter-password-for-free-robux_GM431946152.pdf
    • http://library.yamasi.ac.id//repository/play-minecraft-online-free_GM479516143.pdf
    • http://library.yamasi.ac.id/repository/get-coin-master-cards-free_GM406889139.pdf
    • http://library.yamasi.ac.id//repository/hack-coin-master-no-human-verification_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ee9.bin
6a82481094b1cc80dfec2bb3cc17fb0816d94b533eb60b36f93383105547e729		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2EE9 22596 bytes
font_01_sfnt_off0000613e.bin
c9e9e91be62e76b802a38127f65f2628db18d295c51cd3a6b8e87abf14749bb2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x613E 18984 bytes

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