agenttesla | e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

Processes:

e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe

Windows security bypass 2 TTPs 2 IoCs

Disable or Modify Tools

T1562.001

Modify Registry

Processes:

e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths	e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe = "0"	e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe

Windows security modification 2 TTPs 3 IoCs

Disable or Modify Tools

T1562.001

Modify Registry

Processes:

e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths	e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions	e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe = "0"	e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

System Information Discovery

T1082

Processes:

e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe

Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

13 api.ipify.org
14 api.ipify.org

flow	ioc
13	api.ipify.org
14	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

Processes:

e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe

description	pid	process	target process
PID 1040 set thread context of 4484	1040	e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe	jsc.exe

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

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

powershell.exejsc.exe

pid process

3736 powershell.exe
3736 powershell.exe
4484 jsc.exe
4484 jsc.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exejsc.exe

description pid process

Token: SeDebugPrivilege 3736 powershell.exe
Token: SeDebugPrivilege 4484 jsc.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

jsc.exe

pid process

4484 jsc.exe

pid	process
3736	powershell.exe
3736	powershell.exe
4484	jsc.exe
4484	jsc.exe

description	pid	process
Token: SeDebugPrivilege	3736	powershell.exe
Token: SeDebugPrivilege	4484	jsc.exe

pid	process
4484	jsc.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe

description	pid	process	target process
PID 1040 wrote to memory of 3736	1040	e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe	powershell.exe
PID 1040 wrote to memory of 3736	1040	e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe	powershell.exe
PID 1040 wrote to memory of 4484	1040	e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe	jsc.exe
PID 1040 wrote to memory of 4484	1040	e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe	jsc.exe
PID 1040 wrote to memory of 4484	1040	e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe	jsc.exe
PID 1040 wrote to memory of 4484	1040	e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe	jsc.exe
PID 1040 wrote to memory of 4484	1040	e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe	jsc.exe
PID 1040 wrote to memory of 4484	1040	e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe	jsc.exe
PID 1040 wrote to memory of 4484	1040	e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe	jsc.exe
PID 1040 wrote to memory of 4484	1040	e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe	jsc.exe
PID 1040 wrote to memory of 1904	1040	e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe	jsc.exe
PID 1040 wrote to memory of 1904	1040	e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe	jsc.exe
PID 1040 wrote to memory of 1904	1040	e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe	jsc.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

Processes:

e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe

C:\Users\Admin\AppData\Local\Temp\e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe
"C:\Users\Admin\AppData\Local\Temp\e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe"
1⤵
- UAC bypass
- Windows security bypass
- Checks computer location settings
- Windows security modification
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1040

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\e4aa399e5df5c48a5d8141676c53a0b1f5c6af2822de6cec89cea4018a657b68.exe" -Force
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3736

C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4484

C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
2⤵
PID:1904

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

3

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

Query Registry