agenttesla | 7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6

Bypass User Account Control

T1548.002

Disable or Modify Tools

Modify Registry

Processes:

7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe

Windows security bypass 2 TTPs 2 IoCs

Disable or Modify Tools

Modify Registry

Processes:

7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths	7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe = "0"	7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe

Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3336-8-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_EXE_Packed_GEN01

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3336-8-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects executables packed with or use KoiVM 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4284-3-0x000001DDA1480000-0x000001DDA1516000-memory.dmp	INDICATOR_EXE_Packed_KoiVM

Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3336-8-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3336-8-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3336-8-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3336-8-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients

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:

7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe

Windows security modification 2 TTPs 3 IoCs

Disable or Modify Tools

Modify Registry

Processes:

7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths	7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions	7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe = "0"	7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

System Information Discovery

T1082

Processes:

7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe

description	pid	process	target process
PID 4284 set thread context of 3336	4284	7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe	installutil.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.exeinstallutil.exe

pid process

780 powershell.exe
780 powershell.exe
3336 installutil.exe
3336 installutil.exe

pid	process
780	powershell.exe
780	powershell.exe
3336	installutil.exe
3336	installutil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exepowershell.exeinstallutil.exe

description	pid	process
Token: SeDebugPrivilege	4284	7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe
Token: SeDebugPrivilege	780	powershell.exe
Token: SeDebugPrivilege	3336	installutil.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

installutil.exe

pid process

3336 installutil.exe

pid	process
3336	installutil.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe

description	pid	process	target process
PID 4284 wrote to memory of 780	4284	7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe	powershell.exe
PID 4284 wrote to memory of 780	4284	7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe	powershell.exe
PID 4284 wrote to memory of 3336	4284	7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe	installutil.exe
PID 4284 wrote to memory of 3336	4284	7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe	installutil.exe
PID 4284 wrote to memory of 3336	4284	7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe	installutil.exe
PID 4284 wrote to memory of 3336	4284	7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe	installutil.exe
PID 4284 wrote to memory of 3336	4284	7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe	installutil.exe
PID 4284 wrote to memory of 3336	4284	7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe	installutil.exe
PID 4284 wrote to memory of 3336	4284	7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe	installutil.exe
PID 4284 wrote to memory of 3336	4284	7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe	installutil.exe
PID 4284 wrote to memory of 4696	4284	7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe	installutil.exe
PID 4284 wrote to memory of 4696	4284	7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe	installutil.exe
PID 4284 wrote to memory of 4696	4284	7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe	installutil.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

Processes:

7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe

C:\Users\Admin\AppData\Local\Temp\7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe
"C:\Users\Admin\AppData\Local\Temp\7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.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 AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:4284

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\7468b2db67d7df89dc67b64c6a6a487bc67da85c11e03036b26290d8218101a6.exe" -Force
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:780

C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3336

C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"
2⤵
PID:4696

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4088 --field-trial-handle=3088,i,14310325015283915034,7660943942870463106,262144 --variations-seed-version /prefetch:8
1⤵
PID:3140

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

T1562

Disable or Modify Tools

Modify Registry