Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6188f3d80d82a0d…

MALICIOUS

PDF

49.2 KB Created: 2021-06-08 18:23:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 7dbe7012c9735e390a3ac6fe9a9070a6 SHA-1: 561f51b1f32e68cdff878e237cdea5bcd586e2a8 SHA-256: f6188f3d80d82a0d064ae9c58ae4e7f36237d488816d08f926d1e9b7e3fa1685
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The document presents itself as a fake CAPTCHA or human verification prompt, luring the user to click a link for a 'Roblox Epic Minigames Hack'. This is a common social engineering tactic to trick users into downloading potentially malicious files. The embedded URL points to a resource that likely serves the actual payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9859

Heuristics 4

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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.tw/app/431946152/roblox-epic-minigames-hack-game-hack
    • http://balkanin.com/images/websites-that-give-free-robux_GM431946152.pdf
    • http://balkanin.com/images/free-tiktok-followers-generator_GM835599320.pdf
    • http://balkanin.com/images/tiktok-like-bot-free_GM835599320.pdf
    • http://balkanin.com/images/get-free-robux-without-doing-anything_GM431946152.pdf
    • http://balkanin.com/images/roblox-free-robux-codes_GM431946152.pdf
    • http://balkanin.com/images/roblox-eating-simulator-hack_GM431946152.pdf
    • http://balkanin.com/images/how-do-u-get-free-robux-2021_GM431946152.pdf
    • http://balkanin.com/images/robux-prices_GM431946152.pdf
    • http://balkanin.com/images/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdf
    • http://balkanin.com/images/coin-master-free-spins-link-today_GM406889139.pdf
    • http://balkanin.com/images/free-robux-generator_GM431946152.pdf
    • http://balkanin.com/images/mosttechs-coin-master-free-spins_GM406889139.pdf
    • http://balkanin.com/images/all-free-items-in-roblox_GM431946152.pdf
    • http://balkanin.com/images/how-to-get-free-robux-2021_GM431946152.pdf
    • http://balkanin.com/images/roblox-free-robux-no-human-verification_GM431946152.pdf
    • http://balkanin.com/images/how-to-hack-roblox-for-robux_GM431946152.pdf
    • http://balkanin.com/images/free-robux-quiz_GM431946152.pdf
    • http://balkanin.com/images/free-robux-without-human-verification_GM431946152.pdf
    • http://balkanin.com/images/coin-master-hack-2021-app-download_GM406889139.pdf
    • http://balkanin.com/images/coin-master-working-hack_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e1f.bin
db8dcd8858c1dac58dcae7c581a7f2c53225367106c3d08da8618dc1dec5927c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E1F 26116 bytes
font_01_sfnt_off00009b6d.bin
de385eefa3da401dd1302b7e9d361669eca6e73057e03d28e24d930f4756670b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9B6D 19220 bytes

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