Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    21/04/2026, 15:25

General

  • Target
    6889770684_NursultanCrack.exe
  • Size 246KB
  • Sample260421-stk51act2t
  • SHA256 02bb781d92aa8a8644820c8ee31bc9bc885f4d53266e1912e784e2af11d69637
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • sheetrat

Attributes
  • anti_virtual

    false

  • certificate

    q9c4ibl3wvtm5

  • exclusion_wd

    false

  • hidden_file

    true

  • key

    7dq1sg3

  • path_client

    %ProgramFiles%\xdwdSearch.exe

  • path_watch_dog

    %Windows%\Searcher.exe

  • pump

    true

  • rootkit

    0vz2oiloklix5md7x64

  • task_client

    ShellHost

  • task_watch_dog

    CookieManager

  • use_install_admin

    true

  • user_init

    true

Signatures

  • Family: Sheetrat, NonEuclid rat

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

  • Detects Sheetrat Payload 1 IoCs

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • 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.

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 6 IoCs
  • Looks up external IP address via web service 8 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in Program Files directory 6 IoCs
  • Drops file in Windows directory 8 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 6 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\6889770684_NursultanCrack.exe
    "C:\Users\Admin\AppData\Local\Temp\6889770684_NursultanCrack.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2008
    • C:\Windows\SYSTEM32\CMD.exe
      "CMD" netsh advfirewall firewall add rule name="p} \0ye50 2>0]" dir=in action=allow program="C:\Program Files\xdwdSearch.exe" enable=yes & exit
      2⤵
        PID:3788
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd" /c schtasks /create /f /sc minute /mo 1 /tn "ShellHost" /tr "C:\Program Files\xdwdSearch.exe" /RL HIGHEST & exit
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4756
        • C:\Windows\system32\schtasks.exe
          schtasks /create /f /sc minute /mo 1 /tn "ShellHost" /tr "C:\Program Files\xdwdSearch.exe" /RL HIGHEST
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:1172
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd" /c schtasks /create /f /sc minute /mo 30 /tn "CookieManager" /tr "C:\Windows\Searcher.exe" /RL HIGHEST & exit
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1148
        • C:\Windows\system32\schtasks.exe
          schtasks /create /f /sc minute /mo 30 /tn "CookieManager" /tr "C:\Windows\Searcher.exe" /RL HIGHEST
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:3996
      • C:\Program Files\xdwdSearch.exe
        "C:\Program Files\xdwdSearch.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Suspicious use of AdjustPrivilegeToken
        PID:1452
    • C:\Windows\Searcher.exe
      C:\Windows\Searcher.exe
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1720
    • C:\Program Files\xdwdSearch.exe
      "C:\Program Files\xdwdSearch.exe"
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:764
    • C:\Program Files\xdwdSearch.exe
      "C:\Program Files\xdwdSearch.exe"
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:3396

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          xdwdSearch.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\xdwdSearch.exe.log
          • Size 1KB
          • SHA256 8b410de677f095f88c42c69c716a9383b94ceb86ca90666188fcd4f4df7fc9fa
          • MD5 SHA1 SHA512 TLSH

          xdwd.dll

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

          memory/764-130-0x000001EDB8320000-0x000001EDB8332000-memory.dmp

          memory/764-129-0x000001EDB8310000-0x000001EDB831C000-memory.dmp

          memory/1452-119-0x000002C7433B0000-0x000002C7433C2000-memory.dmp

          memory/1452-118-0x000002C7433A0000-0x000002C7433AC000-memory.dmp

          memory/1720-117-0x000001A101990000-0x000001A1019A2000-memory.dmp

          memory/1720-116-0x000001A101980000-0x000001A10198C000-memory.dmp

          memory/2008-0-0x000002056E3F0000-0x000002056E434000-memory.dmp

          memory/2008-113-0x000002056E880000-0x000002056E88C000-memory.dmp

          memory/2008-4-0x0000020570C70000-0x0000020570C80000-memory.dmp

          memory/2008-3-0x000002056E890000-0x000002056E8A2000-memory.dmp

          memory/2008-2-0x000002056E880000-0x000002056E88C000-memory.dmp

          memory/2008-1-0x0000020570C70000-0x0000020570C80000-memory.dmp

          memory/3396-146-0x000001E74FD20000-0x000001E74FD2C000-memory.dmp

          memory/3396-147-0x000001E74FD30000-0x000001E74FD42000-memory.dmp