Overview

overview

10

Static

static

10

Nursultan.exe

windows10-2004-x64

10

Nursultan.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260617-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260617-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    23/06/2026, 05:10

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General

  • Target
    Nursultan.exe
  • Size 511KB
  • Sample260623-ftr74aax31
  • SHA256 7f69c9bba8816d67f61eebbd28e2cda106587e822f59c5e09ebf064bccfdb9a0
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwareexecutionsheetratpersistenceprivilege_escalationransomwarespywaretrojan

Malware Config

Extracted

Family

  • sheetrat

Version

  • 1.8

C2

  • portbuddy.dev:40982

Signatures

  • Family: Sheetrat, NonEuclid rat

    Sheetrat aka NonEuclid RAT is a trojan written in C#.

    trojansheetrat
  • Detects Sheetrat obfuscated V1.8 and higher 1 IoCs

    Sheetrat aka NonEuclid RAT is a trojan written in C#.

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Event Triggered Execution: AppInit DLLs 1 TTPs

    Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

    persistenceprivilege_escalation
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 15 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 62 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies registry class 38 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 38 IoCs
  • Suspicious use of FindShellTrayWindow 51 IoCs
  • Suspicious use of SendNotifyMessage 42 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence
  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\Nursultan.exe
    "C:\Users\Admin\AppData\Local\Temp\Nursultan.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1132
    • C:\Windows\SYSTEM32\CMD.exe
      "CMD" netsh advfirewall firewall add rule name="@t?'nij}n?qXn8" dir=in action=allow program="C:\Windows\xdwdsvchost.exe" enable=yes & exit
      2⤵
        PID:2052
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd" /c schtasks /create /f /sc minute /mo 1 /tn "Microsoft\Windows\SystemDiagnostics\DeviceHealth" /tr "C:\Windows\xdwdsvchost.exe" /RL HIGHEST & exit
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1732
        • C:\Windows\system32\schtasks.exe
          schtasks /create /f /sc minute /mo 1 /tn "Microsoft\Windows\SystemDiagnostics\DeviceHealth" /tr "C:\Windows\xdwdsvchost.exe" /RL HIGHEST
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:6116
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd" /c schtasks /create /f /sc minute /mo 30 /tn "Microsoft\Windows\WlanSvc\PolicyTask" /tr "C:\Windows\xdwdDeviceHealth" /RL HIGHEST & exit
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1356
        • C:\Windows\system32\schtasks.exe
          schtasks /create /f /sc minute /mo 30 /tn "Microsoft\Windows\WlanSvc\PolicyTask" /tr "C:\Windows\xdwdDeviceHealth" /RL HIGHEST
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:2280
      • C:\Windows\xdwdsvchost.exe
        "C:\Windows\xdwdsvchost.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of AdjustPrivilegeToken
        PID:1200
    • C:\Windows\xdwdsvchost.exe
      C:\Windows\xdwdsvchost.exe
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      PID:2492
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:5240
      • C:\Windows\explorer.exe
        explorer.exe /LOADSAVEDWINDOWS
        2⤵
        • Boot or Logon Autostart Execution: Active Setup
        • Loads dropped DLL
        • Enumerates connected drives
        • Checks SCSI registry key(s)
        • Modifies Internet Explorer settings
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of SetWindowsHookEx
        PID:4436
    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:2864
    • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
      "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:4740
    • C:\Windows\xdwdsvchost.exe
      "C:\Windows\xdwdsvchost.exe"
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      PID:4544
    • C:\Windows\xdwdsvchost.exe
      "C:\Windows\xdwdsvchost.exe"
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      PID:1120

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          prep_Activatable Class_Hermes_perf.cache
          • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
          • Size 591B
          • SHA256 dc216c11d6381abdcb6a4b927fd9ea68d336ff63c88639e4a242acf037f90c68
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          prep_Activatable Class_Hermes_perf.cache
          • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
          • Size 599B
          • SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          xdwd.dll
          • Path C:\Windows\xdwd.dll
          • Size 136KB
          • SHA256 35c8d022e1d917f1aabdceae98097ccc072161b302f84c768ca63e4b32ac2b66
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          memory/1132-5-0x00007FFA0F640000-0x00007FFA0FFE4000-memory.dmp
          Download

          memory/1132-23-0x00007FFA0F640000-0x00007FFA0FFE4000-memory.dmp
          Download

          memory/1132-0-0x0000000000860000-0x00000000008E4000-memory.dmp
          Download

          memory/1132-6-0x00007FFA0F640000-0x00007FFA0FFE4000-memory.dmp
          Download

          memory/1132-7-0x00007FFA0F640000-0x00007FFA0FFE4000-memory.dmp
          Download

          memory/1132-8-0x00007FFA0F640000-0x00007FFA0FFE4000-memory.dmp
          Download

          memory/1132-9-0x00007FFA0F640000-0x00007FFA0FFE4000-memory.dmp
          Download

          memory/1132-10-0x00007FFA0F640000-0x00007FFA0FFE4000-memory.dmp
          Download

          memory/1132-3-0x00007FFA0F640000-0x00007FFA0FFE4000-memory.dmp
          Download

          memory/1132-4-0x00007FFA0F640000-0x00007FFA0FFE4000-memory.dmp
          Download

          memory/1132-31-0x00007FFA0F640000-0x00007FFA0FFE4000-memory.dmp
          Download

          memory/1132-2-0x00007FFA0F640000-0x00007FFA0FFE4000-memory.dmp
          Download

          memory/1132-1-0x00007FFA0F7CF000-0x00007FFA0F7D0000-memory.dmp
          Download

          memory/4436-231-0x000000000A790000-0x000000000A9EF000-memory.dmp
          Download

          memory/4740-57-0x0000020903300000-0x0000020903400000-memory.dmp
          Download

          memory/4740-70-0x00000209059E0000-0x0000020905A00000-memory.dmp
          Download

          memory/4740-103-0x00000209171C0000-0x00000209171E0000-memory.dmp
          Download

          memory/4740-71-0x0000020905E40000-0x0000020905F40000-memory.dmp
          Download

          memory/4740-84-0x0000020905C40000-0x0000020905C60000-memory.dmp
          Download