Analysis
- max time kernel
93s - max time network
135s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - submitted
05/08/2024, 18:36
General
- Target c26cafff548a52c30ce71c0be6cd58de.exe
- Size 3.1MB
- Sample240805-w8xn5aybme
- SHA256 deebb3404de726f330e122ea377c38a79970788de0205b3ccfca1b8b99cf0291
Malware Config
Extracted
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quasar
-
1.4.1
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Ailurophile
-
103.252.123.135:2424
-
eaa2b49e-5261-497e-90e6-938e52fed155
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encryption_key
2191AFABAFD50D4181C936D9486B855F30E1DC57
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install_name
WinSystem.exe
-
log_directory
StartupLogs
-
reconnect_delay
3000
-
startup_key
MSC AIlurophile
-
subdirectory
AilurophileDesktop
Signatures
- Ailurophile
Ailurophile is stealer written in Delphi.
- Ailurophile family
- Detects Ailurophile payload 4 IoCs
Ailurophile is stealer written in Delphi.
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar family
- Quasar payload 2 IoCs
- Executes dropped EXE 1 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 2 IoCs
- Suspicious use of SendNotifyMessage 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 6 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
-
C:\Users\Admin\AppData\Local\Temp\c26cafff548a52c30ce71c0be6cd58de.exe"C:\Users\Admin\AppData\Local\Temp\c26cafff548a52c30ce71c0be6cd58de.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "MSC AIlurophile" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\AilurophileDesktop\WinSystem.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Roaming\AilurophileDesktop\WinSystem.exe"C:\Users\Admin\AppData\Roaming\AilurophileDesktop\WinSystem.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 "MSC AIlurophile" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\AilurophileDesktop\WinSystem.exe" /rl HIGHEST /f3⤵
- Scheduled Task/Job: Scheduled Task
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
WinSystem.exe
memory/2760-9-0x00007FF9FB7D0000-0x00007FF9FC291000-memory.dmp
memory/2760-1-0x0000000000C50000-0x0000000000F7A000-memory.dmp
memory/2760-2-0x00007FF9FB7D0000-0x00007FF9FC291000-memory.dmp
memory/2760-0-0x00007FF9FB7D3000-0x00007FF9FB7D5000-memory.dmp
memory/5084-11-0x00007FF9FB7D0000-0x00007FF9FC291000-memory.dmp
memory/5084-10-0x00007FF9FB7D0000-0x00007FF9FC291000-memory.dmp
memory/5084-12-0x000000001B570000-0x000000001B5C0000-memory.dmp
memory/5084-13-0x000000001D730000-0x000000001D7E2000-memory.dmp
memory/5084-14-0x000000001D670000-0x000000001D682000-memory.dmp
memory/5084-15-0x000000001D6D0000-0x000000001D70C000-memory.dmp
memory/5084-16-0x00007FF9FB7D0000-0x00007FF9FC291000-memory.dmp
memory/5084-17-0x00007FF9FB7D0000-0x00007FF9FC291000-memory.dmp