Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
12/03/2026, 16:15
General
- Target lwboost.exe
- Size 3.2MB
- Sample260312-tp8k6sft7w
- SHA256 8a4ef750a720f0f898c39e02d8d56eb8c1c2e7897e20d4687f9f7dc83134f495
Malware Config
Extracted
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quasar
-
1.4.1
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lwboost
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egpyii.za.com:4782
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egpyii.za.com:443
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egpyii.za.com:8888
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egpyii.za.com:8848
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ok9-vn.site:8848
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ok9-vn.site:443
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ok9-vn.site:4782
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ok9-vn.site:8888
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s666vn.asia:8888
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s666vn.asia:8848
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s666vn.asia:4782
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s666vn.asia:443
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LimeBoost
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encryption_key
2DA8E1B5D18EAA4561218BCAF7CC51C403CE73ED
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install_name
lwboost.exe
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key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
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log_directory
Logs
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reconnect_delay
3000
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startup_key
lwboost
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subdirectory
LimeWire\Plugins
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar family
- Quasar payload 2 IoCs
- Executes dropped EXE 1 IoCs
- Drops file in Program Files directory 2 IoCs
- Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SendNotifyMessage 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 3 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.
Processes
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C:\Users\Admin\AppData\Local\Temp\lwboost.exe"C:\Users\Admin\AppData\Local\Temp\lwboost.exe"1⤵
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "lwboost" /sc ONLOGON /tr "C:\Program Files\LimeWire\Plugins\lwboost.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
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C:\Program Files\LimeWire\Plugins\lwboost.exe"C:\Program Files\LimeWire\Plugins\lwboost.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "lwboost" /sc ONLOGON /tr "C:\Program Files\LimeWire\Plugins\lwboost.exe" /rl HIGHEST /f3⤵
- Scheduled Task/Job: Scheduled Task
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-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
lwboost.exe
lwboost.exe.log
memory/3184-7-0x0000000002560000-0x000000000256C000-memory.dmp
memory/3184-1-0x000000001B3D0000-0x000000001B3E0000-memory.dmp
memory/3184-10-0x00000000025D0000-0x00000000025E2000-memory.dmp
memory/3184-8-0x000000001B220000-0x000000001B33E000-memory.dmp
memory/3184-0-0x0000000000150000-0x0000000000484000-memory.dmp
memory/4892-11-0x000000001BE20000-0x000000001BE30000-memory.dmp
memory/4892-12-0x000000001BDD0000-0x000000001BE20000-memory.dmp
memory/4892-13-0x000000001C800000-0x000000001C8B2000-memory.dmp
memory/4892-14-0x0000000001B10000-0x0000000001B1C000-memory.dmp
memory/4892-16-0x000000001BD50000-0x000000001BD62000-memory.dmp
memory/4892-17-0x000000001BE20000-0x000000001BE30000-memory.dmp
memory/4892-15-0x000000001BF30000-0x000000001C04E000-memory.dmp