Analysis
- user interaction
yes - max time kernel
149s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
31/08/2026, 13:56
General
- Target run-nightix.exe
- Size 672KB
- Sample260831-q85f3swthy
- SHA256 afb15a15dd3793e65d81c9ab7ca794b545b2ffabe956d308f8ab17c42d3f3ef8
Malware Config
Signatures
- Modifies WinLogon for persistence 2 TTPs 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 8 IoCs
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Looks up external IP address via web service 1 TTPs 13 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Drops file in Windows directory 2 IoCs
- Browser Information Discovery 1 TTPs
Enumerate browser information.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 5 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Scheduled Task/Job: Scheduled Task 1 TTPs 4 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of AdjustPrivilegeToken 10 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\run-nightix.exe"C:\Users\Admin\AppData\Local\Temp\run-nightix.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\bnd_05b7ce24\knbffgkvrjz4562t.exe"C:\Users\Admin\AppData\Local\Temp\bnd_05b7ce24\knbffgkvrjz4562t.exe"2⤵
- Modifies WinLogon for persistence
- Executes dropped EXE
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\CMD.exe"CMD" netsh advfirewall firewall add rule name="{ZV\2~<"2VU72j" dir=in action=allow program="C:\Windows\_Microsoft67" enable=yes & exit3⤵
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C:\Windows\SYSTEM32\cmd.exe"cmd" /c schtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Windows\_Microsoft67" /RL HIGHEST & exit3⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Windows\_Microsoft67" /RL HIGHEST4⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\SYSTEM32\cmd.exe"cmd" /c schtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Windows\_Microsoft67" /RL HIGHEST & exit3⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Windows\_Microsoft67" /RL HIGHEST4⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\SYSTEM32\cmd.exe"cmd" /c schtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Windows\_Microsoft67" /RL HIGHEST & exit3⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Windows\_Microsoft67" /RL HIGHEST4⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\SYSTEM32\cmd.exe"cmd" /c schtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Windows\_Microsoft67" /RL HIGHEST & exit3⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /create /f /sc minute /mo 1 /tn "" /tr "C:\Windows\_Microsoft67" /RL HIGHEST4⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\bnd_05b7ce24\run-nightix.bat" "2⤵
- Executes a command shell one-liner
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C:\Windows\_Microsoft67C:\Windows\_Microsoft671⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\_Microsoft67C:\Windows\_Microsoft671⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\_Microsoft67C:\Windows\_Microsoft671⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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C:\Windows\_Microsoft67C:\Windows\_Microsoft671⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\msiexec.exeC:\Windows\system32\msiexec.exe /V1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\_Microsoft67C:\Windows\_Microsoft671⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\_Microsoft67C:\Windows\_Microsoft671⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\_Microsoft67C:\Windows\_Microsoft671⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
1Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
_Microsoft67.log
knbffgkvrjz4562t.exe
run-nightix.bat
memory/3448-0-0x00000000005E0000-0x000000000068E000-memory.dmp
memory/4148-13-0x0000023F14DA0000-0x0000023F14E48000-memory.dmp
memory/4148-18-0x0000023F2FC20000-0x0000023F2FC30000-memory.dmp
memory/4148-33-0x0000023F2FC20000-0x0000023F2FC30000-memory.dmp
memory/5004-81-0x0000023D17620000-0x0000023D1764E000-memory.dmp