Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231020-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/11/2023, 07:08

General

  • Target

    NEAS.cdbe260188617d52e36d382c0738cf30.exe

  • Size

    160KB

  • MD5

    cdbe260188617d52e36d382c0738cf30

  • SHA1

    df5ac9cbff64ccead83006b000e27126a80b0d78

  • SHA256

    0571ffc87c7248f0ffdf24316538f17c7afd2b494f1a7b1c0695e010c2c6cf2e

  • SHA512

    7732d562c79bfcd143293fe6e4e620df681e3c8022f1aeb2855edafff00e5a95e36c17bebd82e47bccaf3f9f0cdef04b8caf9dedf2a4acbab005f7d64d9e5932

  • SSDEEP

    1536:jhej+M/dgv0pBdQrAa/JOf5MFzF0K1/lex4vbADuumW9I3iYIGcmAhji91:M5yOOAa/GAFZbAdmAFi91

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 27 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.cdbe260188617d52e36d382c0738cf30.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.cdbe260188617d52e36d382c0738cf30.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3816
    • C:\Users\Admin\riejui.exe
      "C:\Users\Admin\riejui.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:3524

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\riejui.exe

          Filesize

          160KB

          MD5

          98581833d6af53188f2754df80659ac8

          SHA1

          108488b8a51c82bf2faebc59186fbdda918f6de5

          SHA256

          ebf155a8790917f18edecd1abc5bb09a3ab9a75487703d24e2cfaa1b088038f9

          SHA512

          5efaa9e7ab10ee0544a62cb01d83fbf425b4ec8d4817a33fbe9a44e8daa2354135188b6417b77e397487a07608e2354abe07d4957988a87c68faaab48f9db73f

        • C:\Users\Admin\riejui.exe

          Filesize

          160KB

          MD5

          98581833d6af53188f2754df80659ac8

          SHA1

          108488b8a51c82bf2faebc59186fbdda918f6de5

          SHA256

          ebf155a8790917f18edecd1abc5bb09a3ab9a75487703d24e2cfaa1b088038f9

          SHA512

          5efaa9e7ab10ee0544a62cb01d83fbf425b4ec8d4817a33fbe9a44e8daa2354135188b6417b77e397487a07608e2354abe07d4957988a87c68faaab48f9db73f

        • C:\Users\Admin\riejui.exe

          Filesize

          160KB

          MD5

          98581833d6af53188f2754df80659ac8

          SHA1

          108488b8a51c82bf2faebc59186fbdda918f6de5

          SHA256

          ebf155a8790917f18edecd1abc5bb09a3ab9a75487703d24e2cfaa1b088038f9

          SHA512

          5efaa9e7ab10ee0544a62cb01d83fbf425b4ec8d4817a33fbe9a44e8daa2354135188b6417b77e397487a07608e2354abe07d4957988a87c68faaab48f9db73f