njrat | 16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5

Processes:

16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Local\\Temp\\16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe\""	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe

Modifies Windows Defender Real-time Protection settings 3 TTPs 4 IoCs

evasion trojan

Modify Registry

Modify Existing Service

T1031

Disabling Security Tools

Processes:

16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe

Turns off Windows Defender SpyNet reporting 2 TTPs
evasion

Disabling Security Tools
T1089

Modify Registry
T1112

Windows security bypass 2 TTPs 3 IoCs

evasion trojan

Disabling Security Tools

Modify Registry

Processes:

16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe = "0"	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe = "0"	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

Processes:

16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

Processes:

16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Tools	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.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:

16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.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:

16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe

Drops startup file 2 IoCs

Processes:

16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe

Windows security modification 2 TTPs 11 IoCs

evasion trojan

Disabling Security Tools

Modify Registry

Processes:

16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Real-Time Protection	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Spynet	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Spynet\SpyNetReporting = "0"	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe = "0"	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe = "0"	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Spynet\SubmitSamplesConsent = "0"	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

Processes:

16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\<Unknown> = "C:\\Users\\Admin\\AppData\\Local\\Temp\\16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe"	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe"	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

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:

16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe

description	pid	process	target process
PID 1600 set thread context of 2260	1600	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe

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

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1468 2260 WerFault.exe 16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe

pid	pid_target	process	target process
1468	2260	WerFault.exe	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exe

pid	process
1756	powershell.exe
2896	powershell.exe
632	powershell.exe
3788	powershell.exe
1756	powershell.exe
2896	powershell.exe
632	powershell.exe
3788	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exepowershell.exepowershell.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	1600	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe
Token: SeDebugPrivilege	1756	powershell.exe
Token: SeDebugPrivilege	2896	powershell.exe
Token: SeDebugPrivilege	632	powershell.exe
Token: SeDebugPrivilege	3788	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe

description	pid	process	target process
PID 1600 wrote to memory of 2896	1600	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe	powershell.exe
PID 1600 wrote to memory of 2896	1600	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe	powershell.exe
PID 1600 wrote to memory of 2896	1600	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe	powershell.exe
PID 1600 wrote to memory of 632	1600	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe	powershell.exe
PID 1600 wrote to memory of 632	1600	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe	powershell.exe
PID 1600 wrote to memory of 632	1600	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe	powershell.exe
PID 1600 wrote to memory of 1756	1600	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe	powershell.exe
PID 1600 wrote to memory of 1756	1600	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe	powershell.exe
PID 1600 wrote to memory of 1756	1600	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe	powershell.exe
PID 1600 wrote to memory of 3788	1600	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe	powershell.exe
PID 1600 wrote to memory of 3788	1600	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe	powershell.exe
PID 1600 wrote to memory of 3788	1600	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe	powershell.exe
PID 1600 wrote to memory of 2260	1600	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe
PID 1600 wrote to memory of 2260	1600	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe
PID 1600 wrote to memory of 2260	1600	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe
PID 1600 wrote to memory of 2260	1600	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe
PID 1600 wrote to memory of 2260	1600	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe
PID 1600 wrote to memory of 2260	1600	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe
PID 1600 wrote to memory of 2260	1600	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe
PID 1600 wrote to memory of 2260	1600	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe
PID 1600 wrote to memory of 2260	1600	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe	16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe

C:\Users\Admin\AppData\Local\Temp\16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe
"C:\Users\Admin\AppData\Local\Temp\16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe"
1⤵
- Modifies WinLogon for persistence
- Modifies Windows Defender Real-time Protection settings
- Windows security bypass
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Drops startup file
- Windows security modification
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1600

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe" -Force
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2896

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe" -Force
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:632

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe" -Force
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1756

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe" -Force
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3788

C:\Users\Admin\AppData\Local\Temp\16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe
"C:\Users\Admin\AppData\Local\Temp\16823d06e4fa5f54618475d675ff8bfe434b1b89b344a41a81b2d3edc0bbc2e5.exe"
2⤵
PID:2260

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2260 -s 844
3⤵
- Program crash
PID:1468

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2260 -ip 2260
1⤵
PID:2792

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

6

Disabling Security Tools

4

Virtualization/Sandbox Evasion

2

Credential Access

Discovery

Query Registry

5

Virtualization/Sandbox Evasion

2

System Information Discovery

4

Peripheral Device Discovery

T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service