Analysis
- max time kernel
149s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240730-en - resource tags
- submitted
01/08/2024, 23:05
General
- Target Uncrypted.exe
- Size 3.1MB
- Sample240801-22358a1fkn
- SHA256 f0890762dc18864d1900091680170560ce12d39661b1a43aa89a40b8f7bba356
Malware Config
Extracted
-
quasar
-
1.4.1
-
Crypted
-
147.185.221.20:49485
-
5d05bf1e-2e1c-4491-818f-f7812202a0f3
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encryption_key
861857D1CF3156473C4CDEC5FF4316148C273C40
-
install_name
$phantom-jlaive.exe
-
log_directory
$phantom-Logs
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reconnect_delay
3000
-
startup_key
$phantom-Jlaive
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subdirectory
$phantom-Dir
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs
Adversaries may check for Internet connectivity on compromised systems.
- Runs ping.exe 1 TTPs 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Uncrypted.exe"C:\Users\Admin\AppData\Local\Temp\Uncrypted.exe"1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\KgopjQkgmk5X.bat" "2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\chcp.comchcp 650013⤵
-
-
C:\Windows\system32\PING.EXEping -n 10 localhost3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
KgopjQkgmk5X.bat
memory/3824-0-0x00007FFDC9DE3000-0x00007FFDC9DE5000-memory.dmp
memory/3824-1-0x0000000000250000-0x0000000000574000-memory.dmp
memory/3824-2-0x00007FFDC9DE0000-0x00007FFDCA8A1000-memory.dmp
memory/3824-3-0x000000001B720000-0x000000001B770000-memory.dmp
memory/3824-4-0x000000001B830000-0x000000001B8E2000-memory.dmp
memory/3824-5-0x000000001B790000-0x000000001B7A2000-memory.dmp
memory/3824-6-0x000000001B7F0000-0x000000001B82C000-memory.dmp
memory/3824-7-0x000000001CA60000-0x000000001CF88000-memory.dmp
memory/3824-9-0x00007FFDC9DE3000-0x00007FFDC9DE5000-memory.dmp
memory/3824-10-0x00007FFDC9DE0000-0x00007FFDCA8A1000-memory.dmp
memory/3824-16-0x00007FFDC9DE0000-0x00007FFDCA8A1000-memory.dmp