Analysis

  • max time kernel
    149s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    05/10/2026, 12:54

General

  • Target
    limclean.bat
  • Size 6.1MB
  • Sample261005-p5btxstblc
  • SHA256 8ad1e81b511ad76a0dca74d39d82b8d7932d584d2047fb602b1ae4dd2eb6bada
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Deobfuscate/Decode Files or Information 1 TTPs 1 IoCs

    Payload decoded via CertUtil.

  • Enumerates connected drives 3 TTPs 1 IoCs

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

  • Looks up external IP address via web service 1 TTPs 2 IoCs

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

  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 11 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Delays execution with timeout.exe 1 IoCs
  • Runs ping.exe 1 TTPs 2 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 9 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 21 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 28 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:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\limclean.bat"
    1⤵
    • Executes a command shell one-liner
    • Suspicious use of WriteProcessMemory
    PID:4808
    • C:\Windows\system32\certutil.exe
      certutil -decode "C:\Users\Admin\AppData\Local\Temp\xdzl.b64" "C:\Users\Admin\AppData\Local\Temp\dbvx.ps1"
      2⤵
      • Deobfuscate/Decode Files or Information
      PID:3484
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -NoP -NonI -W Hidden -EP Bypass -File "C:\Users\Admin\AppData\Local\Temp\dbvx.ps1"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Enumerates connected drives
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3564
      • C:\Users\Admin\AppData\Local\Temp\tmp511F.tmp.exe
        "C:\Users\Admin\AppData\Local\Temp\tmp511F.tmp.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:5084
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\bnd_6ec476db\limfucker.bat" "
          4⤵
          • Executes a command shell one-liner
          • Suspicious use of WriteProcessMemory
          PID:372
          • C:\Windows\system32\chcp.com
            chcp 65001
            5⤵
              PID:5340
            • C:\Windows\system32\PING.EXE
              ping -n 1 127.0.0.1
              5⤵
              • System Network Configuration Discovery: Internet Connection Discovery
              • Runs ping.exe
              PID:1600
            • C:\Windows\system32\PING.EXE
              ping -n 1 127.0.0.1
              5⤵
              • System Network Configuration Discovery: Internet Connection Discovery
              • Runs ping.exe
              PID:4584
          • C:\Users\Admin\AppData\Local\Temp\bnd_6ec476db\adv4iqbsd1fsq59w.exe
            "C:\Users\Admin\AppData\Local\Temp\bnd_6ec476db\adv4iqbsd1fsq59w.exe"
            4⤵
            • Modifies WinLogon for persistence
            • Executes dropped EXE
            • Drops file in Windows directory
            • Reads the TCP/IP host and domain name from the registry
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:3040
            • C:\Windows\SYSTEM32\CMD.exe
              "CMD" netsh advfirewall firewall add rule name="XuSb8Gp@8Sk>8Z" dir=in action=allow program="C:\Windows\_Microsoft67" enable=yes & exit
              5⤵
                PID:5076
              • C:\Windows\SYSTEM32\cmd.exe
                "cmd" /c schtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Windows\_Microsoft67" /RL HIGHEST & exit
                5⤵
                • Executes a command shell one-liner
                • Suspicious use of WriteProcessMemory
                PID:4264
                • C:\Windows\system32\schtasks.exe
                  schtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Windows\_Microsoft67" /RL HIGHEST
                  6⤵
                  • Scheduled Task/Job: Scheduled Task
                  PID:5216
              • C:\Windows\SYSTEM32\cmd.exe
                "cmd" /c schtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Windows\_Microsoft67" /RL HIGHEST & exit
                5⤵
                • Executes a command shell one-liner
                • Suspicious use of WriteProcessMemory
                PID:1388
                • C:\Windows\system32\schtasks.exe
                  schtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Windows\_Microsoft67" /RL HIGHEST
                  6⤵
                  • Scheduled Task/Job: Scheduled Task
                  PID:456
              • C:\Windows\SYSTEM32\cmd.exe
                "cmd" /c schtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Windows\_Microsoft67" /RL HIGHEST & exit
                5⤵
                • Executes a command shell one-liner
                • Suspicious use of WriteProcessMemory
                PID:4452
                • C:\Windows\system32\schtasks.exe
                  schtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Windows\_Microsoft67" /RL HIGHEST
                  6⤵
                  • Scheduled Task/Job: Scheduled Task
                  PID:2948
              • C:\Windows\SYSTEM32\cmd.exe
                "cmd" /c schtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Windows\_Microsoft67" /RL HIGHEST & exit
                5⤵
                • Executes a command shell one-liner
                • Suspicious use of WriteProcessMemory
                PID:2300
                • C:\Windows\system32\schtasks.exe
                  schtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Windows\_Microsoft67" /RL HIGHEST
                  6⤵
                  • Scheduled Task/Job: Scheduled Task
                  PID:556
              • C:\Windows\SYSTEM32\cmd.exe
                "cmd" /c schtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Windows\_Microsoft67" /RL HIGHEST & exit
                5⤵
                • Executes a command shell one-liner
                • Suspicious use of WriteProcessMemory
                PID:4012
                • C:\Windows\system32\schtasks.exe
                  schtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Windows\_Microsoft67" /RL HIGHEST
                  6⤵
                  • Scheduled Task/Job: Scheduled Task
                  PID:5844
              • C:\Windows\SYSTEM32\cmd.exe
                "cmd" /c schtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Windows\_Microsoft67" /RL HIGHEST & exit
                5⤵
                • Executes a command shell one-liner
                • Suspicious use of WriteProcessMemory
                PID:5068
                • C:\Windows\system32\schtasks.exe
                  schtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Windows\_Microsoft67" /RL HIGHEST
                  6⤵
                  • Scheduled Task/Job: Scheduled Task
                  PID:2896
              • C:\Windows\SYSTEM32\cmd.exe
                "cmd" /c schtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Windows\_Microsoft67" /RL HIGHEST & exit
                5⤵
                • Executes a command shell one-liner
                • Suspicious use of WriteProcessMemory
                PID:5616
                • C:\Windows\system32\schtasks.exe
                  schtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Windows\_Microsoft67" /RL HIGHEST
                  6⤵
                  • Scheduled Task/Job: Scheduled Task
                  PID:1216
              • C:\Windows\SYSTEM32\cmd.exe
                "cmd" /c schtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Windows\_Microsoft67" /RL HIGHEST & exit
                5⤵
                • Executes a command shell one-liner
                • Suspicious use of WriteProcessMemory
                PID:5252
                • C:\Windows\system32\schtasks.exe
                  schtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Windows\_Microsoft67" /RL HIGHEST
                  6⤵
                  • Scheduled Task/Job: Scheduled Task
                  PID:4064
              • C:\Windows\SYSTEM32\cmd.exe
                "cmd" /c schtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Windows\_Microsoft67" /RL HIGHEST & exit
                5⤵
                • Executes a command shell one-liner
                • Suspicious use of WriteProcessMemory
                PID:812
                • C:\Windows\system32\schtasks.exe
                  schtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Windows\_Microsoft67" /RL HIGHEST
                  6⤵
                  • Scheduled Task/Job: Scheduled Task
                  PID:5256
        • C:\Windows\system32\timeout.exe
          timeout /t 3
          2⤵
          • Delays execution with timeout.exe
          PID:1416

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            __PSScriptPolicyTest_zeqg2l51.zw2.ps1

            • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zeqg2l51.zw2.ps1
            • Size 60B
            • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
            • MD5 SHA1 SHA512 TLSH

            adv4iqbsd1fsq59w.exe

            • Path C:\Users\Admin\AppData\Local\Temp\bnd_6ec476db\adv4iqbsd1fsq59w.exe
            • Size 658KB
            • SHA256 02d9edc6990f982dd15e24e18da4d948cf4aca843fbef57a66b681d887fa9f60
            • MD5 SHA1 SHA512 SSDEEP TLSH

            limfucker.bat

            • Path C:\Users\Admin\AppData\Local\Temp\bnd_6ec476db\limfucker.bat
            • Size 4KB
            • SHA256 d65bae84f5db96692e61f0c11fa14d33a738a2eeaddf945459ea5714e2c3809d
            • MD5 SHA1 SHA512 SSDEEP TLSH

            dbvx.ps1

            • Path C:\Users\Admin\AppData\Local\Temp\dbvx.ps1
            • Size 3.7MB
            • SHA256 fee9a8f12119cad8743552d79a48ed670a0823bdcc66970f01db5251641e225b
            • MD5 SHA1 SHA512 SSDEEP TLSH

            tmp511F.tmp.exe

            • Path C:\Users\Admin\AppData\Local\Temp\tmp511F.tmp.exe
            • Size 2.7MB
            • SHA256 b6a657a8c0ecc15a4fefdcdc35ca990e90c854c7b911d7a5c5ebea311164c1f0
            • MD5 SHA1 SHA512 SSDEEP TLSH

            xdzl.b64

            • Path C:\Users\Admin\AppData\Local\Temp\xdzl.b64
            • Size 4KB
            • SHA256 fc2bcf0c7e13a677ebcb9eaf767d310826b31cc6f4c265b12ff8b98bf5d86847
            • MD5 SHA1 SHA512 SSDEEP TLSH

            xdzl.b64

            • Path C:\Users\Admin\AppData\Local\Temp\xdzl.b64
            • Size 5.0MB
            • SHA256 7ac23b28bb8782091b6927c8b13d4792b8720fab3902d2fa6dbc35c19d33ecf0
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/3040-67555-0x0000028DBD370000-0x0000028DBD416000-memory.dmp

            memory/3564-67517-0x0000019026F70000-0x0000019026F80000-memory.dmp

            memory/3564-67528-0x0000019026F70000-0x0000019026F80000-memory.dmp

            memory/3564-67526-0x0000019026EB0000-0x0000019026ED2000-memory.dmp

            memory/3564-67518-0x0000019026F70000-0x0000019026F80000-memory.dmp

            memory/3564-67558-0x0000019026F70000-0x0000019026F80000-memory.dmp

            memory/5084-67540-0x0000000000750000-0x00000000007FE000-memory.dmp