Analysis
- max time kernel
149s - max time network
146s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
23/03/2026, 08:56
General
- Target friendcore.exe
- Size 3.5MB
- Sample260323-kv2kdae17v
- SHA256 3a97227a3a21849b3b950f4fb80ecc3e05b46194dc5017069d33393b40e0e853
Malware Config
Extracted
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quasar
-
1.4.1
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friendcore
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indonesia.radio.fm:4782
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indonesia.radio.fm:443
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indonesia.radio.fm:8888
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indonesia.radio.fm:8848
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indonesia.radio.fm:8080
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au88.love:443
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au88.love:4782
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au88.love:8888
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au88.love:8848
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au88.love:8080
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498.cn.com:443
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498.cn.com:4782
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498.cn.com:8888
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498.cn.com:8848
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498.cn.com:8080
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FRIEND_CORE_MUTEX
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encryption_key
2DA8E1B5D18EAA4561218BCAF7CC51C403CE73ED
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install_name
%PROGRAMFILES%.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
FriendCore
-
subdirectory
FriendCore
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
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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\friendcore.exe"C:\Users\Admin\AppData\Local\Temp\friendcore.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 "FriendCore" /sc ONLOGON /tr "C:\Program Files\FriendCore\%PROGRAMFILES%.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
-
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C:\Program Files\FriendCore\%PROGRAMFILES%.exe"C:\Program Files\FriendCore\%PROGRAMFILES%.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 "FriendCore" /sc ONLOGON /tr "C:\Program Files\FriendCore\%PROGRAMFILES%.exe" /rl HIGHEST /f3⤵
- Scheduled Task/Job: Scheduled Task
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
%PROGRAMFILES%.exe
memory/2056-13-0x000000001B600000-0x000000001B978000-memory.dmp
memory/2056-12-0x000000001CA30000-0x000000001CAE2000-memory.dmp
memory/2056-50-0x000000001B600000-0x000000001B978000-memory.dmp
memory/2056-32-0x000000001B600000-0x000000001B978000-memory.dmp
memory/2056-17-0x000000001B600000-0x000000001B978000-memory.dmp
memory/2056-10-0x000000001BAB0000-0x000000001BAC0000-memory.dmp
memory/2056-16-0x000000001BAB0000-0x000000001BAC0000-memory.dmp
memory/2056-14-0x0000000001030000-0x000000000103C000-memory.dmp
memory/2056-11-0x000000001C920000-0x000000001C970000-memory.dmp
memory/2056-15-0x0000000002AB0000-0x0000000002AC2000-memory.dmp
memory/4436-1-0x0000000002CE0000-0x0000000002CF0000-memory.dmp
memory/4436-0-0x00000000007F0000-0x0000000000B6E000-memory.dmp
memory/4436-6-0x000000001B720000-0x000000001BA98000-memory.dmp
memory/4436-8-0x00000000013A0000-0x00000000013AC000-memory.dmp
memory/4436-9-0x000000001C290000-0x000000001C2A2000-memory.dmp