Analysis

  • max time kernel
    114s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-05-2023 22:23

General

  • Target

    3372c1edab46837f1e973164fa2d726c5c5e17bcb888828ccd7c4dfcc234a370.exe

  • Size

    284KB

  • MD5

    209a288c68207d57e0ce6e60ebf60729

  • SHA1

    e654d39cd13414b5151e8cf0d8f5b166dddd45cb

  • SHA256

    3372c1edab46837f1e973164fa2d726c5c5e17bcb888828ccd7c4dfcc234a370

  • SHA512

    ce4a7e42738154183fc53702f0841dfd4ad1eb0567b13cc1ff0909f1d330e9cd2fb994375efc6f02e7eddaaae1f465ff93458412143266afdaff1c6bf6477fc3

  • SSDEEP

    3072:rYXT8PUsMNL8V4tD2My/JAAbQoM29wlV58lbNnolY7VgsYiVTPtiTu/q:rowUsML8g2j0o9wb0bNoaKsYImui

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Modifies extensions of user files 3 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in System32 directory 64 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies Control Panel 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3372c1edab46837f1e973164fa2d726c5c5e17bcb888828ccd7c4dfcc234a370.exe
    "C:\Users\Admin\AppData\Local\Temp\3372c1edab46837f1e973164fa2d726c5c5e17bcb888828ccd7c4dfcc234a370.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1724
    • C:\Users\Admin\AppData\Roaming\ncmeebg.exe
      C:\Users\Admin\AppData\Roaming\ncmeebg.exe
      2⤵
      • Drops file in Drivers directory
      • Modifies extensions of user files
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in System32 directory
      • Sets desktop wallpaper using registry
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Modifies Control Panel
      • Suspicious behavior: EnumeratesProcesses
      PID:4164
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\3372C1~1.EXE >> NUL
      2⤵
        PID:2356

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Roaming\ncmeebg.exe

      Filesize

      284KB

      MD5

      209a288c68207d57e0ce6e60ebf60729

      SHA1

      e654d39cd13414b5151e8cf0d8f5b166dddd45cb

      SHA256

      3372c1edab46837f1e973164fa2d726c5c5e17bcb888828ccd7c4dfcc234a370

      SHA512

      ce4a7e42738154183fc53702f0841dfd4ad1eb0567b13cc1ff0909f1d330e9cd2fb994375efc6f02e7eddaaae1f465ff93458412143266afdaff1c6bf6477fc3

    • C:\Users\Admin\AppData\Roaming\ncmeebg.exe

      Filesize

      284KB

      MD5

      209a288c68207d57e0ce6e60ebf60729

      SHA1

      e654d39cd13414b5151e8cf0d8f5b166dddd45cb

      SHA256

      3372c1edab46837f1e973164fa2d726c5c5e17bcb888828ccd7c4dfcc234a370

      SHA512

      ce4a7e42738154183fc53702f0841dfd4ad1eb0567b13cc1ff0909f1d330e9cd2fb994375efc6f02e7eddaaae1f465ff93458412143266afdaff1c6bf6477fc3