cybergate | e77bc7c4519dc30ed4905a599f91c9a7546df25b315e4aa37c06f9649b5f775c

Modify Registry

description	ioc	Process
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\Policies = "C:\\Windows\\install\\server.exe"	server.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	server.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Policies = "C:\\Windows\\install\\server.exe"	server.exe

Modifies Installed Components in the registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{08IWPE87-2BQ3-G41V-O876-48EEGU62C275}	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{08IWPE87-2BQ3-G41V-O876-48EEGU62C275}\StubPath = "C:\\Windows\\install\\server.exe Restart"	server.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Control Panel\International\Geo\Nation	server.exe

Executes dropped EXE 1 IoCs

pid	Process
4124	server.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4192-136-0x0000000002440000-0x00000000024B0000-memory.dmp	upx
behavioral2/memory/4192-140-0x0000000010410000-0x0000000010480000-memory.dmp	upx
behavioral2/memory/4192-200-0x0000000010480000-0x00000000104F0000-memory.dmp	upx
behavioral2/memory/1560-244-0x0000000010480000-0x00000000104F0000-memory.dmp	upx
behavioral2/memory/1560-1169-0x0000000010480000-0x00000000104F0000-memory.dmp	upx
behavioral2/memory/1560-11548-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral2/memory/1560-11550-0x0000000000E90000-0x0000000000ED2000-memory.dmp	upx
behavioral2/memory/1560-13478-0x0000000000400000-0x0000000000442000-memory.dmp	upx

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

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\HKLM = "C:\\Windows\\install\\server.exe"	server.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Windows\CurrentVersion\Run	server.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\install\\server.exe"	server.exe

Drops file in Windows directory 5 IoCs

description	ioc	Process
File created	C:\Windows\install\server.exe	server.exe
File opened for modification	C:\Windows\install\server.exe	server.exe
File opened for modification	C:\Windows\install\	server.exe
File opened for modification	C:\Windows\install\server.exe	explorer.exe
File opened for modification	C:\Windows\install\	explorer.exe

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

System Information Discovery
T1082

Checks SCSI registry key(s) 3 TTPs 8 IoCs

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

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_DADY&PROD_HARDDISK\4&215468A5&0&000000	explorer.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\ConfigFlags	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_MSFT&PROD_VIRTUAL_DVD-ROM\2&1F4ADFFE&0&000001	explorer.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\Phantom	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_MSFT&PROD_VIRTUAL_DVD-ROM\2&1F4ADFFE&0&000002	explorer.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\Phantom	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_DADY&PROD_DADY_DVD-ROM\4&215468A5&0&010000	explorer.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_DADY_DVD-ROM\4&215468a5&0&010000\ConfigFlags	explorer.exe

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	explorer.exe

Modifies registry class 1 IoCs

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

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4192	server.exe
4192	server.exe
1560	explorer.exe
1560	explorer.exe
1560	explorer.exe
1560	explorer.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1560	explorer.exe
Token: SeDebugPrivilege	1560	explorer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4192	server.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46
PID 4192 wrote to memory of 3156	4192	server.exe	46

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3156
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Adds policy Run key to start application
  - Modifies Installed Components in the registry
  - Checks computer location settings
  - Adds Run key to start application
  - Drops file in Windows directory
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4192
- - C:\Windows\SysWOW64\explorer.exe
    explorer.exe
    3⤵
    - Drops file in Windows directory
    - Checks SCSI registry key(s)
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1560
  - - C:\Windows\SysWOW64\cscript.exe
      "C:\Windows\system32\cscript.exe" "C:\Users\Admin\AppData\Roaming\Adminv3.4.2.2.vbs"
      4⤵
      PID:3584
- - C:\Windows\install\server.exe
    "C:\Windows\install\server.exe"
    3⤵
    - Executes dropped EXE
    PID:4124

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

Privilege Escalation

Defense Evasion

Modify Registry

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

System Information Discovery