Analysis

  • max time kernel
    119s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/10/2024, 05:57

General

  • Target
    50f73d2e10f7398e4466d9c06ac1e91bd9cbed160d16a84c9813702974210821N.exe
  • Size 505KB
  • Sample241001-gnkfqstfkr
  • SHA256 50f73d2e10f7398e4466d9c06ac1e91bd9cbed160d16a84c9813702974210821
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Extracted

Family
  • urelas

C2
  • 218.54.31.226

  • 218.54.31.165

  • 218.54.31.166

Signatures

  • Urelas

    Urelas is a trojan targeting card games.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 48 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\50f73d2e10f7398e4466d9c06ac1e91bd9cbed160d16a84c9813702974210821N.exe
    "C:\Users\Admin\AppData\Local\Temp\50f73d2e10f7398e4466d9c06ac1e91bd9cbed160d16a84c9813702974210821N.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1360
    • C:\Users\Admin\AppData\Local\Temp\byuvw.exe
      "C:\Users\Admin\AppData\Local\Temp\byuvw.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5072
      • C:\Users\Admin\AppData\Local\Temp\zubie.exe
        "C:\Users\Admin\AppData\Local\Temp\zubie.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:1192
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\_uinsey.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3016

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        _uinsey.bat

        • Path C:\Users\Admin\AppData\Local\Temp\_uinsey.bat
        • Size 342B
        • SHA256 73f72ebde8a231d284ca79abc577e78663b4c8c4501105aa3f1250240261621a
        • MD5 SHA1 SHA512

        byuvw.exe

        • Path C:\Users\Admin\AppData\Local\Temp\byuvw.exe
        • Size 505KB
        • SHA256 7a1fc9f998a79bfed3380416314d5347bec75cc03928fc97d03d4b06ba747d3b
        • MD5 SHA1 SHA512 SSDEEP

        golfinfo.ini

        • Path C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
        • Size 512B
        • SHA256 1717e12bfb4b95caba8f81f39392b9cc87765e38dbe9848f15ed9bd6ae603991
        • MD5 SHA1 SHA512

        zubie.exe

        • Path C:\Users\Admin\AppData\Local\Temp\zubie.exe
        • Size 172KB
        • SHA256 279b6f09eae4bd008372cbf9645591cfc226f2abfb2d7248829110720d4af9c8
        • MD5 SHA1 SHA512 SSDEEP

        memory/1192-29-0x0000000000FA0000-0x0000000001039000-memory.dmp

        memory/1192-35-0x0000000000FA0000-0x0000000001039000-memory.dmp

        memory/1192-33-0x0000000000FA0000-0x0000000001039000-memory.dmp

        memory/1192-34-0x0000000000360000-0x0000000000362000-memory.dmp

        memory/1192-25-0x0000000000FA0000-0x0000000001039000-memory.dmp

        memory/1192-28-0x0000000000360000-0x0000000000362000-memory.dmp

        memory/1360-14-0x0000000000A00000-0x0000000000A81000-memory.dmp

        memory/1360-0-0x0000000000A00000-0x0000000000A81000-memory.dmp

        memory/5072-27-0x0000000000D30000-0x0000000000DB1000-memory.dmp

        memory/5072-17-0x0000000000D30000-0x0000000000DB1000-memory.dmp

        memory/5072-12-0x0000000000D30000-0x0000000000DB1000-memory.dmp