Analysis

  • max time kernel
    152s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-12-2023 01:10

General

  • Target

    48233c394fd136a8e8c50f72c479818d.exe

  • Size

    120KB

  • MD5

    48233c394fd136a8e8c50f72c479818d

  • SHA1

    a286371bf593d75e5932e75b0f7ccbd85e81b13b

  • SHA256

    054ce23e77868d3b70a3884cc350b48c75e9fa63b774df6718ca6ae608b00fdf

  • SHA512

    2fa9e8fe42cf7146a10963cb52a1e5d733e233147c5be2a3f0a6109695f1b2eb2b7ed0ebf5e56c96e7f61c5ca41d8ba55329d57d13d949382bdfbfc7aef422c3

  • SSDEEP

    3072:JHLPsKAmOc6GxqG20y8g6vxnqV32cm5dtJWgW73HC+VPpwk87VP+vCGx:JHzsIv4G20yqvxnG32cm5dtJWgW73HCW

Malware Config

Signatures

  • XtremeRAT

    The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 4 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\48233c394fd136a8e8c50f72c479818d.exe
    "C:\Users\Admin\AppData\Local\Temp\48233c394fd136a8e8c50f72c479818d.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2200
    • C:\Users\Admin\AppData\Roaming\crashes\crashes.exe
      "C:\Users\Admin\AppData\Roaming\crashes\crashes.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2524
      • C:\Users\Admin\AppData\Roaming\crashes\crashes.exe
        "C:\Users\Admin\AppData\Roaming\crashes\crashes.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:3176
        • C:\Users\Admin\AppData\Roaming\crashes\crashes.exe
          C:\Users\Admin\AppData\Roaming\crashes\crashes.exe
          4⤵
          • Executes dropped EXE
          PID:452
        • C:\Users\Admin\AppData\Roaming\crashes\crashes.exe
          C:\Users\Admin\AppData\Roaming\crashes\crashes.exe
          4⤵
          • Executes dropped EXE
          PID:3620

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    32KB

    MD5

    e8c846efe21bbed25464e676e5c457cb

    SHA1

    d0fe7c2465e6dd98a66f01e0449cb2ee4b9715a3

    SHA256

    be7c4e95f44c471a53670db94b35247e511410691ab85e15293d6e03cf0dfce9

    SHA512

    18d40b46a4cc904ccc0237b55207e2eda6e04e090a1e12db585725ff414cbebd1f82f7e26bf916f6d0340f0b63e8a5e51e67215595ac489395d6963394e54160

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

    Filesize

    120KB

    MD5

    48233c394fd136a8e8c50f72c479818d

    SHA1

    a286371bf593d75e5932e75b0f7ccbd85e81b13b

    SHA256

    054ce23e77868d3b70a3884cc350b48c75e9fa63b774df6718ca6ae608b00fdf

    SHA512

    2fa9e8fe42cf7146a10963cb52a1e5d733e233147c5be2a3f0a6109695f1b2eb2b7ed0ebf5e56c96e7f61c5ca41d8ba55329d57d13d949382bdfbfc7aef422c3

  • memory/2200-2-0x0000000000620000-0x0000000000626000-memory.dmp

    Filesize

    24KB

  • memory/3176-18-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/3176-25-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/3176-28-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/3176-31-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB