Analysis
- user interaction
yes - max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
02/08/2026, 20:37
General
- Target Client-built333.exe
- Size 3.1MB
- Sample260802-zees1a1fjc
- SHA256 eb972e54e1e9ce3569d37c6210f8c63ba4a32684e8fd36618c492bdbdfd728ba
Malware Config
Extracted
-
quasar
-
1.4.1
-
xeno
-
axaxxax-51422.portmap.host:51422
-
807e7f8b-c361-461e-a83c-c838c194b939
-
encryption_key
57DF511C91337D19DD39BBD98DEFC31CFD805360
-
install_name
Xeno.exe
-
key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
-
log_directory
Xeno_Logs
-
reconnect_delay
3000
-
startup_key
Xeno
-
subdirectory
SubDir
Signatures
- Family: Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 2 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\Client-built333.exe"C:\Users\Admin\AppData\Local\Temp\Client-built333.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Xeno" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Xeno.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Roaming\SubDir\Xeno.exe"C:\Users\Admin\AppData\Roaming\SubDir\Xeno.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 "Xeno" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Xeno.exe" /rl HIGHEST /f3⤵
- Scheduled Task/Job: Scheduled Task
-
-
-
C:\Users\Admin\AppData\Roaming\SubDir\Xeno.exeC:\Users\Admin\AppData\Roaming\SubDir\Xeno.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
Xeno.exe
memory/4076-8-0x000000001BAF0000-0x000000001BB00000-memory.dmp
memory/4076-11-0x000000001BB00000-0x000000001BB50000-memory.dmp
memory/4076-12-0x000000001DBE0000-0x000000001DC92000-memory.dmp
memory/4076-13-0x000000001BAF0000-0x000000001BB00000-memory.dmp
memory/4600-0-0x0000000000180000-0x00000000004A4000-memory.dmp
memory/4600-1-0x0000000002400000-0x0000000002410000-memory.dmp