Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    25/08/2026, 18:02

General

  • Target
    2026-08-24_1a9ccd2a86ecc36ec65df9cd632892f9_cryptbot_icedid_luca-stealer_njrat_stealc.exe
  • Size 1.7MB
  • Sample260825-wml1hatvft
  • SHA256 ba0fa64c3ead32b9b88e41f98d1a38e0af1868196a9c3799e4d4246ec2f4d716
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Contains code to disable Windows Defender 1 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Modifies Windows Defender DisableAntiSpyware settings 3 TTPs 1 IoCs
  • Modifies Windows Defender notification settings 3 TTPs 3 IoCs
  • UAC bypass 3 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Executes a VBScript file via the Windows Script Host. 1 TTPs 1 IoCs
  • Drops file in Program Files directory 14 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-24_1a9ccd2a86ecc36ec65df9cd632892f9_cryptbot_icedid_luca-stealer_njrat_stealc.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-24_1a9ccd2a86ecc36ec65df9cd632892f9_cryptbot_icedid_luca-stealer_njrat_stealc.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3212
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Program Files\WindowsOptions\install.vbs"
      2⤵
      • Checks computer location settings
      • Executes a VBScript file via the Windows Script Host.
      • Suspicious use of WriteProcessMemory
      PID:4296
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass -File "run.ps1"
        3⤵
        • Modifies Windows Defender DisableAntiSpyware settings
        • Modifies Windows Defender notification settings
        • UAC bypass
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4876
        • C:\Program Files\WindowsOptions\UnRAR.exe
          "C:\Program Files\WindowsOptions\UnRAR.exe" x -y -pByeFriend! "C:\Program Files\WindowsOptions\sfx.rar" "C:\Program Files\WindowsOptions\"
          4⤵
          • Executes dropped EXE
          • Drops file in Program Files directory
          PID:5036
        • C:\Program Files\WindowsOptions\Yjzlxkdoi.exe
          "C:\Program Files\WindowsOptions\Yjzlxkdoi.exe"
          4⤵
          • Executes dropped EXE
          PID:2468

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        UnRAR.exe

        • Path C:\Program Files\WindowsOptions\UnRAR.exe
        • Size 547KB
        • SHA256 e785a0c0dcf79385f0483c1eb2242e3937d0447f6b21dd158906e92757b46542
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Yjzlxkdoi.exe

        • Path C:\Program Files\WindowsOptions\Yjzlxkdoi.exe
        • Size 1.7MB
        • SHA256 bb84ebe9bb129155a571e18a0906ffa14cc13e4888b38ef49bb78da93fc1b485
        • MD5 SHA1 SHA512 SSDEEP TLSH

        install.vbs

        • Path C:\Program Files\WindowsOptions\install.vbs
        • Size 98B
        • SHA256 a0110f07fe8d70b8c7f8d6d973f54a2cae6c8fbf09e7ae6b780f5598af903474
        • MD5 SHA1 SHA512 TLSH

        run.ps1

        • Path C:\Program Files\WindowsOptions\run.ps1
        • Size 23KB
        • SHA256 4220408adec9f0ff9dd034efa7e71ffd0d6cdf229a147981de240d90f65bdf87
        • MD5 SHA1 SHA512 SSDEEP TLSH

        sfx.rar

        • Path C:\Program Files\WindowsOptions\sfx.rar
        • Size 439KB
        • SHA256 e6f7776c3a6387e088b776e89cdc2681e6a048a933f9725f9a8245ed1c23408a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        __PSScriptPolicyTest_pba5o5a3.d1t.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_pba5o5a3.d1t.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512 TLSH

        memory/4876-16-0x0000016D8F290000-0x0000016D8F2B2000-memory.dmp