bitrat | 526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d

Virtualization/Sandbox Evasion

Processes:

526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions	526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.exe

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

Processes:

526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Tools	526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.exe

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:

526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.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:

526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.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:

526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

RegSvcs.exe

pid process

3644 RegSvcs.exe
3644 RegSvcs.exe
3644 RegSvcs.exe
3644 RegSvcs.exe

pid	process
3644	RegSvcs.exe
3644	RegSvcs.exe
3644	RegSvcs.exe
3644	RegSvcs.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.exeRegSvcs.exe

description	pid	process	target process
PID 4416 set thread context of 3516	4416	526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.exe	RegSvcs.exe
PID 3516 set thread context of 3644	3516	RegSvcs.exe	RegSvcs.exe
PID 3516 set thread context of 2984	3516	RegSvcs.exe	RegSvcs.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

4832 schtasks.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeShutdownPrivilege 3644 RegSvcs.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

RegSvcs.exe

pid process

3644 RegSvcs.exe
3644 RegSvcs.exe

pid	process
4832	schtasks.exe

description	pid	process
Token: SeShutdownPrivilege	3644	RegSvcs.exe

pid	process
3644	RegSvcs.exe
3644	RegSvcs.exe

Suspicious use of WriteProcessMemory 38 IoCs

Processes:

526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.exeRegSvcs.exe

description	pid	process	target process
PID 4416 wrote to memory of 4832	4416	526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.exe	schtasks.exe
PID 4416 wrote to memory of 4832	4416	526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.exe	schtasks.exe
PID 4416 wrote to memory of 4832	4416	526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.exe	schtasks.exe
PID 4416 wrote to memory of 3516	4416	526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.exe	RegSvcs.exe
PID 4416 wrote to memory of 3516	4416	526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.exe	RegSvcs.exe
PID 4416 wrote to memory of 3516	4416	526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.exe	RegSvcs.exe
PID 4416 wrote to memory of 3516	4416	526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.exe	RegSvcs.exe
PID 4416 wrote to memory of 3516	4416	526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.exe	RegSvcs.exe
PID 4416 wrote to memory of 3516	4416	526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.exe	RegSvcs.exe
PID 4416 wrote to memory of 3516	4416	526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.exe	RegSvcs.exe
PID 4416 wrote to memory of 3516	4416	526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.exe	RegSvcs.exe
PID 4416 wrote to memory of 3516	4416	526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.exe	RegSvcs.exe
PID 4416 wrote to memory of 3516	4416	526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.exe	RegSvcs.exe
PID 4416 wrote to memory of 3516	4416	526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.exe	RegSvcs.exe
PID 4416 wrote to memory of 3516	4416	526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.exe	RegSvcs.exe
PID 3516 wrote to memory of 3644	3516	RegSvcs.exe	RegSvcs.exe
PID 3516 wrote to memory of 3644	3516	RegSvcs.exe	RegSvcs.exe
PID 3516 wrote to memory of 3644	3516	RegSvcs.exe	RegSvcs.exe
PID 3516 wrote to memory of 3644	3516	RegSvcs.exe	RegSvcs.exe
PID 3516 wrote to memory of 3644	3516	RegSvcs.exe	RegSvcs.exe
PID 3516 wrote to memory of 3644	3516	RegSvcs.exe	RegSvcs.exe
PID 3516 wrote to memory of 3644	3516	RegSvcs.exe	RegSvcs.exe
PID 3516 wrote to memory of 3644	3516	RegSvcs.exe	RegSvcs.exe
PID 3516 wrote to memory of 3644	3516	RegSvcs.exe	RegSvcs.exe
PID 3516 wrote to memory of 3644	3516	RegSvcs.exe	RegSvcs.exe
PID 3516 wrote to memory of 3644	3516	RegSvcs.exe	RegSvcs.exe
PID 3516 wrote to memory of 2984	3516	RegSvcs.exe	RegSvcs.exe
PID 3516 wrote to memory of 2984	3516	RegSvcs.exe	RegSvcs.exe
PID 3516 wrote to memory of 2984	3516	RegSvcs.exe	RegSvcs.exe
PID 3516 wrote to memory of 2984	3516	RegSvcs.exe	RegSvcs.exe
PID 3516 wrote to memory of 2984	3516	RegSvcs.exe	RegSvcs.exe
PID 3516 wrote to memory of 2984	3516	RegSvcs.exe	RegSvcs.exe
PID 3516 wrote to memory of 2984	3516	RegSvcs.exe	RegSvcs.exe
PID 3516 wrote to memory of 2984	3516	RegSvcs.exe	RegSvcs.exe
PID 3516 wrote to memory of 2984	3516	RegSvcs.exe	RegSvcs.exe
PID 3516 wrote to memory of 2984	3516	RegSvcs.exe	RegSvcs.exe
PID 3516 wrote to memory of 2984	3516	RegSvcs.exe	RegSvcs.exe
PID 3516 wrote to memory of 2984	3516	RegSvcs.exe	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.exe
"C:\Users\Admin\AppData\Local\Temp\526330a5801be45ad490a9057dab40dc70fee6e55258d77e049e98049b25001d.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 use of WriteProcessMemory
PID:4416

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zGKLtN" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD992.tmp"
2⤵
- Creates scheduled task(s)
PID:4832

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3516

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3644

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:2984

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

Credential Access

Discovery

Query Registry

5

Virtualization/Sandbox Evasion

2

System Information Discovery

4

Peripheral Device Discovery