Analysis
- max time kernel
150s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
14/11/2026, 06:22
General
- Target Client-built.exe
- Size 3.1MB
- Sample261114-g5d1aady2t
- SHA256 3dff065d05738609111c8063c266bf5d5a7842bcc7a696c13d69a937a103938c
Malware Config
Extracted
-
quasar
-
1.4.1
-
Office04
-
public.zinguard.net:4782
-
zinguard.net:4782
-
blog.wifi6certified.com:4782
-
wifi6certified.com:4782
-
hempnationonline.com:4782
-
agarport.co:4782
-
record.radio.fm:4782
-
activate-audiovisual.co.uk:4782
-
tech.tmd45.in:4782
-
feroxsports.com:4782
-
member.meslot1688.com:4782
-
https://public.zinguard.net/vn/:443
-
4833781f-ab77-4c9e-af36-793930f77164
-
encryption_key
61D61573755A2E8791F777F44FE72A8C404B3F90
-
install_name
Client.exe
-
key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
-
log_directory
Logs
-
reconnect_delay
50
-
startup_key
Quasar Client Startup
-
subdirectory
SubDir
Signatures
- Family: Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 2 IoCs
- Executes dropped EXE 2 IoCs
- Executes a command shell one-liner 1 TTPs 4 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 4 IoCs
Adversaries may check for Internet connectivity on compromised systems.
- Runs ping.exe 1 TTPs 4 IoCs
- Scheduled Task/Job: Scheduled Task 1 TTPs 6 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious use of AdjustPrivilegeToken 3 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-built.exe"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Quasar Client Startup" /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 WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f3⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\8RMjnJUCOQXN.bat" "3⤵
- Executes a command shell one-liner
-
C:\Windows\system32\chcp.comchcp 650014⤵
-
-
C:\Windows\system32\PING.EXEping -n 10 localhost4⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
-
-
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"4⤵
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f5⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\caqrrF8vWSer.bat" "5⤵
- Executes a command shell one-liner
-
C:\Windows\system32\chcp.comchcp 650016⤵
-
-
C:\Windows\system32\PING.EXEping -n 10 localhost6⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
-
-
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"6⤵
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f7⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\D7KrRFbd69O5.bat" "7⤵
- Executes a command shell one-liner
-
C:\Windows\system32\chcp.comchcp 650018⤵
-
-
C:\Windows\system32\PING.EXEping -n 10 localhost8⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
-
-
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"8⤵
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f9⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\9B3juk52B6zk.bat" "9⤵
- Executes a command shell one-liner
-
C:\Windows\system32\chcp.comchcp 6500110⤵
-
-
C:\Windows\system32\PING.EXEping -n 10 localhost10⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
-
-
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"10⤵
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f11⤵
- 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
8RMjnJUCOQXN.bat
9B3juk52B6zk.bat
D7KrRFbd69O5.bat
caqrrF8vWSer.bat
Client.exe
memory/1984-10-0x00007FFAC0970000-0x00007FFAC1314000-memory.dmp
memory/1984-12-0x00007FFAC0970000-0x00007FFAC1314000-memory.dmp
memory/1984-8-0x00007FFAC0970000-0x00007FFAC1314000-memory.dmp
memory/1984-7-0x00007FFAC0970000-0x00007FFAC1314000-memory.dmp
memory/1984-9-0x00007FFAC0970000-0x00007FFAC1314000-memory.dmp
memory/1984-5-0x00007FFAC0970000-0x00007FFAC1314000-memory.dmp
memory/1984-11-0x00007FFAC0970000-0x00007FFAC1314000-memory.dmp
memory/1984-6-0x00007FFAC0970000-0x00007FFAC1314000-memory.dmp
memory/1984-13-0x00007FFAC0970000-0x00007FFAC1314000-memory.dmp
memory/1984-14-0x00007FFAC0970000-0x00007FFAC1314000-memory.dmp
memory/1984-21-0x00007FFAC0970000-0x00007FFAC1314000-memory.dmp
memory/1984-4-0x00007FFAC0970000-0x00007FFAC1314000-memory.dmp
memory/1984-3-0x00007FFAC0970000-0x00007FFAC1314000-memory.dmp
memory/1984-0-0x00007FFAC0AFF000-0x00007FFAC0B00000-memory.dmp
memory/1984-2-0x00007FFAC0970000-0x00007FFAC1314000-memory.dmp
memory/1984-1-0x0000000000DD0000-0x00000000010F4000-memory.dmp
memory/2488-24-0x00007FFAC0970000-0x00007FFAC1314000-memory.dmp
memory/2488-26-0x00007FFAC0970000-0x00007FFAC1314000-memory.dmp
memory/2488-27-0x00007FFAC0970000-0x00007FFAC1314000-memory.dmp
memory/2488-28-0x00007FFAC0970000-0x00007FFAC1314000-memory.dmp
memory/2488-29-0x00007FFAC0970000-0x00007FFAC1314000-memory.dmp
memory/2488-30-0x00007FFAC0970000-0x00007FFAC1314000-memory.dmp
memory/2488-33-0x000000001D000000-0x000000001D0B2000-memory.dmp
memory/2488-32-0x000000001CEF0000-0x000000001CF40000-memory.dmp
memory/2488-34-0x00007FFAC0970000-0x00007FFAC1314000-memory.dmp
memory/2488-35-0x00007FFAC0970000-0x00007FFAC1314000-memory.dmp
memory/2488-20-0x00007FFAC0970000-0x00007FFAC1314000-memory.dmp
memory/2488-43-0x00007FFAC0970000-0x00007FFAC1314000-memory.dmp
memory/2488-25-0x00007FFAC0970000-0x00007FFAC1314000-memory.dmp
memory/2488-22-0x00007FFAC0970000-0x00007FFAC1314000-memory.dmp
memory/2488-23-0x00007FFAC0970000-0x00007FFAC1314000-memory.dmp