Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/10/2024, 08:47

General

  • Target
    1c8a08689c16a7cab2a8c7c03a66befa_JaffaCakes118.exe
  • Size 581KB
  • Sample241007-kpv6eazgnd
  • SHA256 d127adc44b4e55a787816e3a42712b4b90043397c1d363b8a42c64e744dfd3b3
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • urelas

C2
  • 1.234.83.146

  • 133.242.129.155

  • 218.54.31.226

  • 218.54.31.165

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
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1c8a08689c16a7cab2a8c7c03a66befa_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\1c8a08689c16a7cab2a8c7c03a66befa_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3088
    • C:\Users\Admin\AppData\Local\Temp\owbye.exe
      "C:\Users\Admin\AppData\Local\Temp\owbye.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2612
      • C:\Users\Admin\AppData\Local\Temp\velew.exe
        "C:\Users\Admin\AppData\Local\Temp\velew.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2888
    • 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:1248

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        _uinsey.bat

        • Path C:\Users\Admin\AppData\Local\Temp\_uinsey.bat
        • Size 304B
        • SHA256 df678ba7991eac0791eb4dce0587402100354460425c3341fbd041bd0386a6b3
        • MD5 SHA1 SHA512

        golfinfo.ini

        • Path C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
        • Size 512B
        • SHA256 1098174798eebb486a87a7baf279baa52003d7b6de075038335275f150c23c66
        • MD5 SHA1 SHA512

        owbye.exe

        • Path C:\Users\Admin\AppData\Local\Temp\owbye.exe
        • Size 581KB
        • SHA256 f3d782e8b61384a85d35e7f748d66a8e1b5c73a0f782ef12f559aa3dd1a1b579
        • MD5 SHA1 SHA512 SSDEEP

        velew.exe

        • Path C:\Users\Admin\AppData\Local\Temp\velew.exe
        • Size 201KB
        • SHA256 4fda418bb35b02248504bc38fb8249ab5b830819db78a89c82d4d6f62ababce4
        • MD5 SHA1 SHA512 SSDEEP

        memory/2612-11-0x0000000000400000-0x00000000004C0000-memory.dmp

        memory/2612-27-0x0000000000400000-0x00000000004C0000-memory.dmp

        memory/2612-17-0x0000000000400000-0x00000000004C0000-memory.dmp

        memory/2888-26-0x0000000000400000-0x0000000000497000-memory.dmp

        memory/2888-28-0x00000000001D0000-0x00000000001D1000-memory.dmp

        memory/2888-30-0x0000000000400000-0x0000000000497000-memory.dmp

        memory/2888-31-0x0000000000400000-0x0000000000497000-memory.dmp

        memory/2888-32-0x0000000000400000-0x0000000000497000-memory.dmp

        memory/2888-33-0x0000000000400000-0x0000000000497000-memory.dmp

        memory/2888-34-0x0000000000400000-0x0000000000497000-memory.dmp

        memory/3088-0-0x0000000000400000-0x00000000004C0000-memory.dmp

        memory/3088-14-0x0000000000400000-0x00000000004C0000-memory.dmp