Analysis
- max time kernel
898s - max time network
460s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
08/03/2026, 17:24
General
- Target coldclient/steam_settings/steam_appid.txt
- Size 7B
- Sample260308-vysfzset3p
- SHA256 c0d7c219dd57927835839c3a3bddb73e2e81c17687d2d7697813dcc7c17f38fd
Score
3/10
Malware Config
Signatures
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Modifies registry class 1 IoCs
- Opens file in notepad (likely ransom note) 1 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\coldclient\steam_settings\steam_appid.txt1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\coldclient\steam_settings\steam_appid.txt2⤵
- Opens file in notepad (likely ransom note)
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
memory/2608-0-0x00000200FF4E0000-0x00000200FF5CA000-memory.dmp
memory/2608-6-0x00000200FF4E0000-0x00000200FF5CA000-memory.dmp
memory/2608-58-0x00000200FF4E0000-0x00000200FF5CA000-memory.dmp
memory/2608-118-0x00000200FF4E0000-0x00000200FF5CA000-memory.dmp
memory/4424-1-0x00000241ADD20000-0x00000241ADE0A000-memory.dmp
memory/4424-5-0x00000241ADD20000-0x00000241ADE0A000-memory.dmp
memory/4424-59-0x00000241ADD20000-0x00000241ADE0A000-memory.dmp
memory/4424-61-0x00000241ADD20000-0x00000241ADE0A000-memory.dmp