General

  • Target

    n8nug3.exe

  • Size

    163KB

  • Sample

    240920-kwrfssybqa

  • MD5

    b20e29f2b88234cda8b95b43a4fec8aa

  • SHA1

    13cca52a0dc3b9b352e14688f444ad9bcb9a9f4f

  • SHA256

    e2481565a6c7a26690e99f63eea8e04615f7b3d92ca4ada11e331ce1053f962a

  • SHA512

    019a4afbcd4c6236c226a05b0864df4f310fb91d41847dfcd84207d276a6219f66b725f5d3f637e7049d87fc81c88b8969a3061970be505bade70f767511313a

  • SSDEEP

    3072:MQpsRTVjrJJCIFeesmomFEZkieYugOC7Arm2DilTw9/:MQpsRTVjrJBwesjmFEe5nhC7Arm2D0Ts

Malware Config

Targets

    • Target

      n8nug3.exe

    • Size

      163KB

    • MD5

      b20e29f2b88234cda8b95b43a4fec8aa

    • SHA1

      13cca52a0dc3b9b352e14688f444ad9bcb9a9f4f

    • SHA256

      e2481565a6c7a26690e99f63eea8e04615f7b3d92ca4ada11e331ce1053f962a

    • SHA512

      019a4afbcd4c6236c226a05b0864df4f310fb91d41847dfcd84207d276a6219f66b725f5d3f637e7049d87fc81c88b8969a3061970be505bade70f767511313a

    • SSDEEP

      3072:MQpsRTVjrJJCIFeesmomFEZkieYugOC7Arm2DilTw9/:MQpsRTVjrJBwesjmFEe5nhC7Arm2D0Ts

    • Modifies security service

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Sets service image path in registry

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Indicator Removal: Clear Windows Event Logs

      Clear Windows Event Logs to hide the activity of an intrusion.

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks