Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
- submitted
04/04/2026, 15:01
General
- Target 2026-04-04_e536a6d9885e410a283ac43a5e5bef73_.exe
- Size 5.0MB
- Sample260404-sd6rrsds2y
- SHA256 0552bb970044fb8c7e7308d9a452efcda8f3bdafada211e9812a941e343343ed
Malware Config
Extracted
-
quasar
-
1.4.1
-
GgEz
-
192.168.56.1:4782
-
94.158.58.243:4782
-
b3a8c586-0b67-4a8c-abc4-74e08d8dde18
-
encryption_key
FDACF7E8F9C6560B3907C1545E88BFDE06C9B047
-
install_name
Client.exe
-
key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
robloxplayerbeta
-
subdirectory
SubDir
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar family
- Quasar payload 1 IoCs
- Executes dropped EXE 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 3 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
-
C:\Users\Admin\AppData\Local\Temp\2026-04-04_e536a6d9885e410a283ac43a5e5bef73_.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-04_e536a6d9885e410a283ac43a5e5bef73_.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "robloxplayerbeta" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "robloxplayerbeta" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f3⤵
- Scheduled Task/Job: Scheduled Task
-
-
-
C:\Users\Admin\AppData\Roaming\SubDir\Client.exeC:\Users\Admin\AppData\Roaming\SubDir\Client.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
Client.exe
memory/536-0-0x0000021D76A50000-0x0000021D76D74000-memory.dmp
memory/536-1-0x0000021D74AC0000-0x0000021D74AD0000-memory.dmp
memory/536-2-0x0000021D74AC0000-0x0000021D74AD0000-memory.dmp
memory/536-3-0x0000021D74AC0000-0x0000021D74AD0000-memory.dmp
memory/536-10-0x0000021D74B00000-0x0000021D74B0C000-memory.dmp
memory/4656-16-0x000001EFF0F30000-0x000001EFF0F3C000-memory.dmp
memory/5788-12-0x000001C4FF980000-0x000001C4FF990000-memory.dmp
memory/5788-13-0x000001C4FF980000-0x000001C4FF990000-memory.dmp
memory/5788-11-0x000001C4FF980000-0x000001C4FF990000-memory.dmp
memory/5788-17-0x000001C4E4F20000-0x000001C4E4F70000-memory.dmp
memory/5788-18-0x000001C4FF7E0000-0x000001C4FF892000-memory.dmp
memory/5788-19-0x000001C4FF980000-0x000001C4FF990000-memory.dmp
memory/5788-20-0x000001C4FF980000-0x000001C4FF990000-memory.dmp
memory/5788-21-0x000001C4FF980000-0x000001C4FF990000-memory.dmp
memory/5788-22-0x000001C4FF980000-0x000001C4FF990000-memory.dmp
memory/5788-23-0x000001C4C0340000-0x000001C4C034C000-memory.dmp