1eb697dff13eb912b3b788b3a7fc68fe90649e1b9fd668c00a4e5adc3d50e072

System Information Discovery

Processes:

PO-84542.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	PO-84542.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	PO-84542.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:

PO-84542.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	PO-84542.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:

PO-84542.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	PO-84542.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	PO-84542.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

4504 schtasks.exe

pid	process
4504	schtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

PO-84542.exe

description	pid	process	target process
PID 2912 wrote to memory of 4504	2912	PO-84542.exe	schtasks.exe
PID 2912 wrote to memory of 4504	2912	PO-84542.exe	schtasks.exe
PID 2912 wrote to memory of 4504	2912	PO-84542.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\PO-84542.exe
"C:\Users\Admin\AppData\Local\Temp\PO-84542.exe"
1⤵
- Checks BIOS information in registry
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of WriteProcessMemory
PID:2912

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KSQESYzpV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2C4B.tmp"
2⤵
- Creates scheduled task(s)
PID:4504

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