cybergate | db17bb7ad4df8aaa4fe344a1ae9c4119f82177fb075917bc564944c8488c2ef7

Modify Registry

Processes:

server.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	server.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Microsoft ® = "C:\\Windows\\Microsoft\\Up.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\\Microsoft\\Up.exe"	server.exe

Executes dropped EXE 3 IoCs

Processes:

server.exeCliente.exeserver.exe

pid process

2908 server.exe
4984 Cliente.exe
4048 server.exe

pid	process
2908	server.exe
4984	Cliente.exe
4048	server.exe

Modifies Installed Components in the registry 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

Processes:

server.exeexplorer.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{L30F61TQ-61NO-3X7A-Q072-H1L5QBKB2FL1}	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{L30F61TQ-61NO-3X7A-Q072-H1L5QBKB2FL1}\StubPath = "C:\\Windows\\Microsoft\\Up.exe Restart"	server.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{L30F61TQ-61NO-3X7A-Q072-H1L5QBKB2FL1}	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{L30F61TQ-61NO-3X7A-Q072-H1L5QBKB2FL1}\StubPath = "C:\\Windows\\Microsoft\\Up.exe"	explorer.exe

UPX packed file 9 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/2908-140-0x000000002AB30000-0x000000002AB41000-memory.dmp	upx
behavioral2/memory/2908-141-0x000000002AD30000-0x000000002AD68000-memory.dmp	upx
behavioral2/memory/2908-143-0x000000002AB30000-0x000000002AB41000-memory.dmp	upx
behavioral2/memory/2908-144-0x000000002AD30000-0x000000002AD68000-memory.dmp	upx
behavioral2/memory/1136-147-0x000000002B870000-0x000000002B8D2000-memory.dmp	upx
behavioral2/memory/1136-151-0x000000002B870000-0x000000002B8D2000-memory.dmp	upx
behavioral2/memory/4048-154-0x000000002B950000-0x000000002B9B2000-memory.dmp	upx
behavioral2/memory/4048-157-0x000000002B950000-0x000000002B9B2000-memory.dmp	upx
behavioral2/memory/4048-160-0x000000002B950000-0x000000002B9B2000-memory.dmp	upx

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

Processes:

server.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	server.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	server.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

Processes:

db17bb7ad4df8aaa4fe344a1ae9c4119f82177fb075917bc564944c8488c2ef7.exeserver.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	db17bb7ad4df8aaa4fe344a1ae9c4119f82177fb075917bc564944c8488c2ef7.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	server.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

Processes:

server.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft ® = "C:\\Windows\\Microsoft\\Up.exe"	server.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run	server.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Microsoft ® = "C:\\Windows\\Microsoft\\Up.exe"	server.exe

Drops file in Windows directory 4 IoCs

Processes:

server.exeserver.exe

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

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 7 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

Processes:

server.exe

description	ioc	process
Key queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	server.exe
Key value enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	server.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	server.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	server.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	server.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\FeatureSet	server.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	server.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

server.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier server.exe
Modifies registry class 1 IoCs

Processes:

server.exe

description ioc process

Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ server.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

server.exe

pid process

2908 server.exe
2908 server.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

server.exe

pid process

4048 server.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

server.exe

description pid process

Token: SeDebugPrivilege 4048 server.exe
Token: SeDebugPrivilege 4048 server.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

server.exe

pid process

2908 server.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

db17bb7ad4df8aaa4fe344a1ae9c4119f82177fb075917bc564944c8488c2ef7.exe

pid process

868 db17bb7ad4df8aaa4fe344a1ae9c4119f82177fb075917bc564944c8488c2ef7.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	server.exe

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

pid	process
2908	server.exe
2908	server.exe

pid	process
4048	server.exe

description	pid	process
Token: SeDebugPrivilege	4048	server.exe
Token: SeDebugPrivilege	4048	server.exe

pid	process
2908	server.exe

pid	process
868	db17bb7ad4df8aaa4fe344a1ae9c4119f82177fb075917bc564944c8488c2ef7.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

db17bb7ad4df8aaa4fe344a1ae9c4119f82177fb075917bc564944c8488c2ef7.exeserver.exe

description	pid	process	target process
PID 868 wrote to memory of 2908	868	db17bb7ad4df8aaa4fe344a1ae9c4119f82177fb075917bc564944c8488c2ef7.exe	server.exe
PID 868 wrote to memory of 2908	868	db17bb7ad4df8aaa4fe344a1ae9c4119f82177fb075917bc564944c8488c2ef7.exe	server.exe
PID 868 wrote to memory of 2908	868	db17bb7ad4df8aaa4fe344a1ae9c4119f82177fb075917bc564944c8488c2ef7.exe	server.exe
PID 868 wrote to memory of 4984	868	db17bb7ad4df8aaa4fe344a1ae9c4119f82177fb075917bc564944c8488c2ef7.exe	Cliente.exe
PID 868 wrote to memory of 4984	868	db17bb7ad4df8aaa4fe344a1ae9c4119f82177fb075917bc564944c8488c2ef7.exe	Cliente.exe
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE
PID 2908 wrote to memory of 2228	2908	server.exe	Explorer.EXE

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:2228

C:\Users\Admin\AppData\Local\Temp\db17bb7ad4df8aaa4fe344a1ae9c4119f82177fb075917bc564944c8488c2ef7.exe
"C:\Users\Admin\AppData\Local\Temp\db17bb7ad4df8aaa4fe344a1ae9c4119f82177fb075917bc564944c8488c2ef7.exe"
2⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:868

C:\Users\Admin\AppData\Local\Temp\server.exe
"C:\Users\Admin\AppData\Local\Temp\server.exe"
3⤵
- Adds policy Run key to start application
- Executes dropped EXE
- Modifies Installed Components in the registry
- Checks BIOS information in registry
- Adds Run key to start application
- Drops file in Windows directory
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2908

C:\Windows\SysWOW64\explorer.exe
explorer.exe
4⤵
- Modifies Installed Components in the registry
PID:1136

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe"
4⤵
PID:4664

C:\Users\Admin\AppData\Local\Temp\server.exe
"C:\Users\Admin\AppData\Local\Temp\server.exe"
4⤵
- Executes dropped EXE
- Checks computer location settings
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:4048

C:\Users\Admin\AppData\Local\Temp\Cliente.exe
"C:\Users\Admin\AppData\Local\Temp\Cliente.exe"
3⤵
- Executes dropped EXE
PID:4984

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

3

Privilege Escalation

Defense Evasion

Modify Registry

3

Credential Access

Discovery

Query Registry

4

System Information Discovery

5