bitrat | 954eeaefa91f80e80df9cc550c0cc16f52ad063f8ca3494c40ebc5c51ebc635b

System Information Discovery

Processes:

b087a691094f9fdd25b7b1828ff7d9fb.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	b087a691094f9fdd25b7b1828ff7d9fb.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b087a691094f9fdd25b7b1828ff7d9fb.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:

b087a691094f9fdd25b7b1828ff7d9fb.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Control Panel\International\Geo\Nation	b087a691094f9fdd25b7b1828ff7d9fb.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:

b087a691094f9fdd25b7b1828ff7d9fb.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	b087a691094f9fdd25b7b1828ff7d9fb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	b087a691094f9fdd25b7b1828ff7d9fb.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

RegSvcs.exe

pid process

3584 RegSvcs.exe
3584 RegSvcs.exe
3584 RegSvcs.exe
3584 RegSvcs.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

b087a691094f9fdd25b7b1828ff7d9fb.exe

description pid process target process

PID 4444 set thread context of 3584 4444 b087a691094f9fdd25b7b1828ff7d9fb.exe RegSvcs.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

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/Job
T1053

Processes:

schtasks.exe

pid process

4640 schtasks.exe

pid	process
3584	RegSvcs.exe
3584	RegSvcs.exe
3584	RegSvcs.exe
3584	RegSvcs.exe

description	pid	process	target process
PID 4444 set thread context of 3584	4444	b087a691094f9fdd25b7b1828ff7d9fb.exe	RegSvcs.exe

pid	process
4640	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

b087a691094f9fdd25b7b1828ff7d9fb.exe

pid	process
4444	b087a691094f9fdd25b7b1828ff7d9fb.exe
4444	b087a691094f9fdd25b7b1828ff7d9fb.exe
4444	b087a691094f9fdd25b7b1828ff7d9fb.exe
4444	b087a691094f9fdd25b7b1828ff7d9fb.exe
4444	b087a691094f9fdd25b7b1828ff7d9fb.exe
4444	b087a691094f9fdd25b7b1828ff7d9fb.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

b087a691094f9fdd25b7b1828ff7d9fb.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 4444 b087a691094f9fdd25b7b1828ff7d9fb.exe
Token: SeShutdownPrivilege 3584 RegSvcs.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

RegSvcs.exe

pid process

3584 RegSvcs.exe
3584 RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	4444	b087a691094f9fdd25b7b1828ff7d9fb.exe
Token: SeShutdownPrivilege	3584	RegSvcs.exe

pid	process
3584	RegSvcs.exe
3584	RegSvcs.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

b087a691094f9fdd25b7b1828ff7d9fb.exe

description	pid	process	target process
PID 4444 wrote to memory of 4640	4444	b087a691094f9fdd25b7b1828ff7d9fb.exe	schtasks.exe
PID 4444 wrote to memory of 4640	4444	b087a691094f9fdd25b7b1828ff7d9fb.exe	schtasks.exe
PID 4444 wrote to memory of 4640	4444	b087a691094f9fdd25b7b1828ff7d9fb.exe	schtasks.exe
PID 4444 wrote to memory of 1276	4444	b087a691094f9fdd25b7b1828ff7d9fb.exe	RegSvcs.exe
PID 4444 wrote to memory of 1276	4444	b087a691094f9fdd25b7b1828ff7d9fb.exe	RegSvcs.exe
PID 4444 wrote to memory of 1276	4444	b087a691094f9fdd25b7b1828ff7d9fb.exe	RegSvcs.exe
PID 4444 wrote to memory of 684	4444	b087a691094f9fdd25b7b1828ff7d9fb.exe	RegSvcs.exe
PID 4444 wrote to memory of 684	4444	b087a691094f9fdd25b7b1828ff7d9fb.exe	RegSvcs.exe
PID 4444 wrote to memory of 684	4444	b087a691094f9fdd25b7b1828ff7d9fb.exe	RegSvcs.exe
PID 4444 wrote to memory of 3584	4444	b087a691094f9fdd25b7b1828ff7d9fb.exe	RegSvcs.exe
PID 4444 wrote to memory of 3584	4444	b087a691094f9fdd25b7b1828ff7d9fb.exe	RegSvcs.exe
PID 4444 wrote to memory of 3584	4444	b087a691094f9fdd25b7b1828ff7d9fb.exe	RegSvcs.exe
PID 4444 wrote to memory of 3584	4444	b087a691094f9fdd25b7b1828ff7d9fb.exe	RegSvcs.exe
PID 4444 wrote to memory of 3584	4444	b087a691094f9fdd25b7b1828ff7d9fb.exe	RegSvcs.exe
PID 4444 wrote to memory of 3584	4444	b087a691094f9fdd25b7b1828ff7d9fb.exe	RegSvcs.exe
PID 4444 wrote to memory of 3584	4444	b087a691094f9fdd25b7b1828ff7d9fb.exe	RegSvcs.exe
PID 4444 wrote to memory of 3584	4444	b087a691094f9fdd25b7b1828ff7d9fb.exe	RegSvcs.exe
PID 4444 wrote to memory of 3584	4444	b087a691094f9fdd25b7b1828ff7d9fb.exe	RegSvcs.exe
PID 4444 wrote to memory of 3584	4444	b087a691094f9fdd25b7b1828ff7d9fb.exe	RegSvcs.exe
PID 4444 wrote to memory of 3584	4444	b087a691094f9fdd25b7b1828ff7d9fb.exe	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\b087a691094f9fdd25b7b1828ff7d9fb.exe
"C:\Users\Admin\AppData\Local\Temp\b087a691094f9fdd25b7b1828ff7d9fb.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:4444

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tBJkUjvPFcL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3E4C.tmp"
2⤵
- Creates scheduled task(s)
PID:4640

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
2⤵
PID:1276

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
2⤵
PID:684

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
2⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3584

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

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