netwire | b002c64f7d0ff0a952b72f31609e683f17bb23313417f6639afdec47d9187b25

System Information Discovery

Processes:

Confidential.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Confidential.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Confidential.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

System Information Discovery

Processes:

Confidential.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	Confidential.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

Processes:

Confidential.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	Confidential.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	Confidential.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Confidential.exe

description pid process target process

PID 3424 set thread context of 32 3424 Confidential.exe Confidential.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

3656 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Confidential.exe

pid process

3424 Confidential.exe
3424 Confidential.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Confidential.exe

description pid process

Token: SeDebugPrivilege 3424 Confidential.exe

description	pid	process	target process
PID 3424 set thread context of 32	3424	Confidential.exe	Confidential.exe

pid	process
3656	schtasks.exe

pid	process
3424	Confidential.exe
3424	Confidential.exe

description	pid	process
Token: SeDebugPrivilege	3424	Confidential.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

Confidential.exe

description	pid	process	target process
PID 3424 wrote to memory of 3656	3424	Confidential.exe	schtasks.exe
PID 3424 wrote to memory of 3656	3424	Confidential.exe	schtasks.exe
PID 3424 wrote to memory of 3656	3424	Confidential.exe	schtasks.exe
PID 3424 wrote to memory of 240	3424	Confidential.exe	Confidential.exe
PID 3424 wrote to memory of 240	3424	Confidential.exe	Confidential.exe
PID 3424 wrote to memory of 240	3424	Confidential.exe	Confidential.exe
PID 3424 wrote to memory of 32	3424	Confidential.exe	Confidential.exe
PID 3424 wrote to memory of 32	3424	Confidential.exe	Confidential.exe
PID 3424 wrote to memory of 32	3424	Confidential.exe	Confidential.exe
PID 3424 wrote to memory of 32	3424	Confidential.exe	Confidential.exe
PID 3424 wrote to memory of 32	3424	Confidential.exe	Confidential.exe
PID 3424 wrote to memory of 32	3424	Confidential.exe	Confidential.exe
PID 3424 wrote to memory of 32	3424	Confidential.exe	Confidential.exe
PID 3424 wrote to memory of 32	3424	Confidential.exe	Confidential.exe
PID 3424 wrote to memory of 32	3424	Confidential.exe	Confidential.exe
PID 3424 wrote to memory of 32	3424	Confidential.exe	Confidential.exe
PID 3424 wrote to memory of 32	3424	Confidential.exe	Confidential.exe

C:\Users\Admin\AppData\Local\Temp\Confidential.exe
"C:\Users\Admin\AppData\Local\Temp\Confidential.exe"
1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3424

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HQbzNKKSw" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD4F8.tmp"
2⤵
- Creates scheduled task(s)
PID:3656

C:\Users\Admin\AppData\Local\Temp\Confidential.exe
"{path}"
2⤵
PID:240

C:\Users\Admin\AppData\Local\Temp\Confidential.exe
"{path}"
2⤵
PID:32

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

5

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

4

Peripheral Device Discovery