Analysis
- max time kernel
122s - max time network
125s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
12/08/2026, 21:30
General
- Target Game-1.exe
- Size 579KB
- Sample260812-1ctd2sveph
- SHA256 c32d18f1982aff86251cf15e72f54d009f52f9a67304c41f13fa01d6b44e49b8
Score
7/10
Malware Config
Signatures
- Creates a file in the Startup directory 1 TTPs 2 IoCs
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
- Executes dropped EXE 2 IoCs
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 1 IoCs
- Contacts third-party web service commonly abused for C2 1 TTPs 3 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
- Looks up external IP address via web service 1 TTPs 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Executes a command shell one-liner 1 TTPs 2 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
- cURL User-Agent 2 IoCs
Uses User-Agent string associated with cURL utility.
Processes
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C:\Users\Admin\AppData\Local\Temp\Game-1.exe"C:\Users\Admin\AppData\Local\Temp\Game-1.exe"1⤵
- Creates a file in the Startup directory
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\UpdateCache\RuntimeBroker.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\UpdateCache\RuntimeBroker.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\cmd.execmd.exe /c curl -s https://api.ipify.org3⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\curl.execurl -s https://api.ipify.org4⤵
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\UpdateCache\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\Microsoft\Windows\UpdateCache\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\cmd.execmd.exe /c curl -s https://api.ipify.org2⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\curl.execurl -s https://api.ipify.org3⤵
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
nyx_last_msg.txt
nyx_targets.txt
RuntimeBroker.exe