cybergate | c1d29284b6d4ae244712dd49661841b36a6de2387cad6ab55388b22769151878

Modify Registry

Processes:

server.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	server.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Microsoft = "C:\\Windows\\system32\\Microsoft\\svchost.exe"	server.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Microsoft = "C:\\Windows\\system32\\Microsoft\\svchost.exe"	server.exe

Modifies Installed Components in the registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

Processes:

server.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{6F5S3313-FD88-4527-JB27-33H3H24487W2}	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{6F5S3313-FD88-4527-JB27-33H3H24487W2}\StubPath = "C:\\Windows\\system32\\Microsoft\\svchost.exe Restart"	server.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

Processes:

42BE3BED9261FBAE0A0AED767EBD88C0.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	42BE3BED9261FBAE0A0AED767EBD88C0.exe

Executes dropped EXE 2 IoCs

Processes:

server.exesvchost.exe

pid process

4316 server.exe
5060 svchost.exe

pid	process
4316	server.exe
5060	svchost.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/4316-21-0x0000000024010000-0x0000000024070000-memory.dmp	upx
behavioral2/memory/4316-81-0x0000000024070000-0x00000000240D0000-memory.dmp	upx
behavioral2/memory/1344-85-0x0000000024070000-0x00000000240D0000-memory.dmp	upx
behavioral2/memory/1344-86-0x0000000024070000-0x00000000240D0000-memory.dmp	upx
behavioral2/memory/3116-152-0x00000000240D0000-0x0000000024130000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

Processes:

server.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft = "C:\\Windows\\system32\\Microsoft\\svchost.exe"	server.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Microsoft = "C:\\Windows\\system32\\Microsoft\\svchost.exe"	server.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

42BE3BED9261FBAE0A0AED767EBD88C0.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	42BE3BED9261FBAE0A0AED767EBD88C0.exe

Drops file in System32 directory 4 IoCs

Processes:

svchost.exeserver.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\Microsoft\	svchost.exe
File created	C:\Windows\SysWOW64\Microsoft\svchost.exe	server.exe
File opened for modification	C:\Windows\SysWOW64\Microsoft\svchost.exe	server.exe
File opened for modification	C:\Windows\SysWOW64\Microsoft\svchost.exe	svchost.exe

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

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3128 5060 WerFault.exe svchost.exe
Modifies registry class 1 IoCs

Processes:

svchost.exe

description ioc process

Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ svchost.exe

pid	pid_target	process	target process
3128	5060	WerFault.exe	svchost.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	svchost.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

42BE3BED9261FBAE0A0AED767EBD88C0.exeserver.exe

pid	process
4548	42BE3BED9261FBAE0A0AED767EBD88C0.exe
4548	42BE3BED9261FBAE0A0AED767EBD88C0.exe
4548	42BE3BED9261FBAE0A0AED767EBD88C0.exe
4548	42BE3BED9261FBAE0A0AED767EBD88C0.exe
4548	42BE3BED9261FBAE0A0AED767EBD88C0.exe
4548	42BE3BED9261FBAE0A0AED767EBD88C0.exe
4316	server.exe
4316	server.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

Processes:

42BE3BED9261FBAE0A0AED767EBD88C0.exesvchost.exe

pid process

4548 42BE3BED9261FBAE0A0AED767EBD88C0.exe
3116 svchost.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

42BE3BED9261FBAE0A0AED767EBD88C0.exesvchost.exe

description	pid	process
Token: SeDebugPrivilege	4548	42BE3BED9261FBAE0A0AED767EBD88C0.exe
Token: SeDebugPrivilege	3116	svchost.exe
Token: SeDebugPrivilege	3116	svchost.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

server.exe

pid process

4316 server.exe

pid	process
4316	server.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

42BE3BED9261FBAE0A0AED767EBD88C0.exeserver.exe

description	pid	process	target process
PID 4548 wrote to memory of 4316	4548	42BE3BED9261FBAE0A0AED767EBD88C0.exe	server.exe
PID 4548 wrote to memory of 4316	4548	42BE3BED9261FBAE0A0AED767EBD88C0.exe	server.exe
PID 4548 wrote to memory of 4316	4548	42BE3BED9261FBAE0A0AED767EBD88C0.exe	server.exe
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE
PID 4316 wrote to memory of 3376	4316	server.exe	Explorer.EXE

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3376

C:\Users\Admin\AppData\Local\Temp\42BE3BED9261FBAE0A0AED767EBD88C0.exe
"C:\Users\Admin\AppData\Local\Temp\42BE3BED9261FBAE0A0AED767EBD88C0.exe"
2⤵
- Checks computer location settings
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4548

C:\Users\Admin\AppData\Local\Temp\server.exe
"C:\Users\Admin\AppData\Local\Temp\server.exe"
3⤵
- Adds policy Run key to start application
- Modifies Installed Components in the registry
- Executes dropped EXE
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4316

C:\Windows\SysWOW64\explorer.exe
explorer.exe
4⤵
PID:1344

C:\Windows\SysWOW64\svchost.exe
"C:\Windows\System32\svchost.exe"
4⤵
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:3116

C:\Windows\SysWOW64\Microsoft\svchost.exe
"C:\Windows\system32\Microsoft\svchost.exe"
5⤵
- Executes dropped EXE
PID:5060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 5060 -s 568
6⤵
- Program crash
PID:3128

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5060 -ip 5060
1⤵
PID:2252

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Defense Evasion

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery