Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f59218212bdb20b…

MALICIOUS

PDF

42.5 KB Created: 2021-05-16 06:05:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 960cb5b233029cad5164d7d8981c2fe3 SHA-1: c947cbf352c666c35cba330d319fdbd6b8e6e1e5 SHA-256: 2f59218212bdb20b87405d7b4f0b1f2fcf5f7ccd62f42fe0756e47fea1236f89
82 Risk Score

Malware Insights

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

The PDF document displays a fake CAPTCHA or human verification prompt to trick users into downloading a secondary payload. The embedded URL, https://netcdn.xyz/app/479516143/hacks-for-minecraft-bedrock-game-hack, is likely the download location for this payload. The document's content and numerous related URLs suggest a lure for game-related cheats or hacks.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/479516143/hacks-for-minecraft-bedrock-game-hack
    • https://www.acorn-medical.com/uploaded_files/userfiles/files/free-spin-coin-master-twitter_GM406889139.pdf
    • https://www.acorn-medical.com/uploaded_files/userfiles/files/coin-master-free-spins-link-2021-download_GM406889139.pdf
    • https://www.acorn-medical.com/uploaded_files/userfiles/files/free-robux-clothes_GM431946152.pdf
    • https://www.acorn-medical.com/uploaded_files/userfiles/files/minecraft-redeem-code-free-2021_GM479516143.pdf
    • https://www.acorn-medical.com/uploaded_files/userfiles/files/classic-minecraft-net-hacks_GM479516143.pdf
    • https://www.acorn-medical.com/uploaded_files/userfiles/files/coin-master-hack-2021-apk_GM406889139.pdf
    • https://www.acorn-medical.com/uploaded_files/userfiles/files/robux-free-com_GM431946152.pdf
    • https://www.acorn-medical.com/uploaded_files/userfiles/files/today-free-spin-link-for-coin-master_GM406889139.pdf
    • https://www.acorn-medical.com/uploaded_files/userfiles/files/free-coin-and-spin-for-coin-master_GM406889139.pdf
    • https://www.acorn-medical.com/uploaded_files/userfiles/files/minecraft-windows-10-edition-free-with-java_GM479516143.pdf
    • https://www.acorn-medical.com/uploaded_files/userfiles/files/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdf
    • https://www.acorn-medical.com/uploaded_files/userfiles/files/free-coin-master-game_GM406889139.pdf
    • https://www.acorn-medical.com/uploaded_files/userfiles/files/free-roblox-glasses_GM431946152.pdf
    • https://www.acorn-medical.com/uploaded_files/userfiles/files/legit-coin-master-hack-without-verification_GM406889139.pdf
    • https://www.acorn-medical.com/uploaded_files/userfiles/files/free-spins-coin-master-links-blogspot_GM406889139.pdf
    • https://www.acorn-medical.com/uploaded_files/userfiles/files/free-robux-kid-friendly-no-human-verification_GM431946152.pdf
    • https://www.acorn-medical.com/uploaded_files/userfiles/files/how-to-get-free-gamepasses-on-roblox_GM431946152.pdf
    • https://www.acorn-medical.com/uploaded_files/userfiles/files/roblox-hacking-website_GM431946152.pdf
    • https://www.acorn-medical.com/uploaded_files/userfiles/files/how-can-u-get-free-robux_GM431946152.pdf
    • https://www.acorn-medical.com/uploaded_files/userfiles/files/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004ce0.bin
4e3f4dddb3212d9a1629a3d61aa7291d8b518cbd679d91b834fa3cba3e0f9581		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4CE0 24184 bytes
font_01_sfnt_off000083ef.bin
92f6e8526b02627b1408819f1618724de120737fe6927f0c4c019a746b3c5a34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83EF 18268 bytes

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