agenttesla | e3783a7abfc49d276cb5db561457e08abdda40ef10ce6e1bee4b6bf3b0e4688e

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	e3783a7abfc49d276cb5db561457e08abdda40ef10ce6e1bee4b6bf3b0e4688e.exe

Windows security bypass 2 TTPs 2 IoCs

Disable or Modify Tools

T1562.001

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\e3783a7abfc49d276cb5db561457e08abdda40ef10ce6e1bee4b6bf3b0e4688e.exe = "0"	e3783a7abfc49d276cb5db561457e08abdda40ef10ce6e1bee4b6bf3b0e4688e.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths	e3783a7abfc49d276cb5db561457e08abdda40ef10ce6e1bee4b6bf3b0e4688e.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1228	powershell.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	e3783a7abfc49d276cb5db561457e08abdda40ef10ce6e1bee4b6bf3b0e4688e.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Windows security modification 2 TTPs 3 IoCs

Disable or Modify Tools

T1562.001

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths	e3783a7abfc49d276cb5db561457e08abdda40ef10ce6e1bee4b6bf3b0e4688e.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions	e3783a7abfc49d276cb5db561457e08abdda40ef10ce6e1bee4b6bf3b0e4688e.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\e3783a7abfc49d276cb5db561457e08abdda40ef10ce6e1bee4b6bf3b0e4688e.exe = "0"	e3783a7abfc49d276cb5db561457e08abdda40ef10ce6e1bee4b6bf3b0e4688e.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	e3783a7abfc49d276cb5db561457e08abdda40ef10ce6e1bee4b6bf3b0e4688e.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	e3783a7abfc49d276cb5db561457e08abdda40ef10ce6e1bee4b6bf3b0e4688e.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3968 set thread context of 1512	3968	e3783a7abfc49d276cb5db561457e08abdda40ef10ce6e1bee4b6bf3b0e4688e.exe	84

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regasm.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1228	powershell.exe
1228	powershell.exe
1512	regasm.exe
1512	regasm.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1228	powershell.exe
Token: SeDebugPrivilege	1512	regasm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1512	regasm.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3968 wrote to memory of 1228	3968	e3783a7abfc49d276cb5db561457e08abdda40ef10ce6e1bee4b6bf3b0e4688e.exe	82
PID 3968 wrote to memory of 1228	3968	e3783a7abfc49d276cb5db561457e08abdda40ef10ce6e1bee4b6bf3b0e4688e.exe	82
PID 3968 wrote to memory of 1512	3968	e3783a7abfc49d276cb5db561457e08abdda40ef10ce6e1bee4b6bf3b0e4688e.exe	84
PID 3968 wrote to memory of 1512	3968	e3783a7abfc49d276cb5db561457e08abdda40ef10ce6e1bee4b6bf3b0e4688e.exe	84
PID 3968 wrote to memory of 1512	3968	e3783a7abfc49d276cb5db561457e08abdda40ef10ce6e1bee4b6bf3b0e4688e.exe	84
PID 3968 wrote to memory of 1512	3968	e3783a7abfc49d276cb5db561457e08abdda40ef10ce6e1bee4b6bf3b0e4688e.exe	84
PID 3968 wrote to memory of 1512	3968	e3783a7abfc49d276cb5db561457e08abdda40ef10ce6e1bee4b6bf3b0e4688e.exe	84
PID 3968 wrote to memory of 1512	3968	e3783a7abfc49d276cb5db561457e08abdda40ef10ce6e1bee4b6bf3b0e4688e.exe	84
PID 3968 wrote to memory of 1512	3968	e3783a7abfc49d276cb5db561457e08abdda40ef10ce6e1bee4b6bf3b0e4688e.exe	84
PID 3968 wrote to memory of 1512	3968	e3783a7abfc49d276cb5db561457e08abdda40ef10ce6e1bee4b6bf3b0e4688e.exe	84

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	e3783a7abfc49d276cb5db561457e08abdda40ef10ce6e1bee4b6bf3b0e4688e.exe

C:\Users\Admin\AppData\Local\Temp\e3783a7abfc49d276cb5db561457e08abdda40ef10ce6e1bee4b6bf3b0e4688e.exe
"C:\Users\Admin\AppData\Local\Temp\e3783a7abfc49d276cb5db561457e08abdda40ef10ce6e1bee4b6bf3b0e4688e.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:3968
- 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\e3783a7abfc49d276cb5db561457e08abdda40ef10ce6e1bee4b6bf3b0e4688e.exe" -Force
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1228
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1512

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

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

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

T1552.002

Discovery

Query Registry

T1012

System Information Discovery

3

T1082

System Location Discovery

T1614

System Language Discovery