Analysis
- max time kernel
149s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
01/11/2026, 13:48
General
- Target Client.exe
- Size 3.1MB
- Sample261101-q4epvsvyfv
- SHA256 31c747fd9dc27665c9095f89a61f22263ab80b9c6cc7c91f07c50f74edc48e17
Malware Config
Extracted
-
quasar
-
1.4.1
-
Office04
-
littlesmart.in:443
-
o3life.com.co:443
-
record.radio.fm:443
-
activate-audiovisual.co.uk:443
-
feroxsports.com:443
-
f16-8.co:443
-
mia.africa.com:443
-
dzbooks.radio.fm:443
-
searchvipbooks.radio.fm:443
-
cigarsofcuba.in:443
-
hs-unlimited.co.uk:443
-
www.ae888n.it.com:443
-
0c7738cf-f546-4c84-9953-3002f5344459
-
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
- 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 WriteProcessMemory 2 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.exe"C:\Users\Admin\AppData\Local\Temp\Client.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
-
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:\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/3808-26-0x00007FF9F05E0000-0x00007FF9F0F84000-memory.dmp
memory/3808-20-0x00007FF9F05E0000-0x00007FF9F0F84000-memory.dmp
memory/3808-33-0x00007FF9F05E0000-0x00007FF9F0F84000-memory.dmp
memory/3808-32-0x00007FF9F05E0000-0x00007FF9F0F84000-memory.dmp
memory/3808-31-0x000000001D160000-0x000000001D212000-memory.dmp
memory/3808-30-0x0000000003260000-0x00000000032B0000-memory.dmp
memory/3808-16-0x00007FF9F05E0000-0x00007FF9F0F84000-memory.dmp
memory/3808-28-0x00007FF9F05E0000-0x00007FF9F0F84000-memory.dmp
memory/3808-19-0x00007FF9F05E0000-0x00007FF9F0F84000-memory.dmp
memory/3808-27-0x00007FF9F05E0000-0x00007FF9F0F84000-memory.dmp
memory/3808-25-0x00007FF9F05E0000-0x00007FF9F0F84000-memory.dmp
memory/3808-24-0x00007FF9F05E0000-0x00007FF9F0F84000-memory.dmp
memory/3808-23-0x00007FF9F05E0000-0x00007FF9F0F84000-memory.dmp
memory/3808-22-0x00007FF9F05E0000-0x00007FF9F0F84000-memory.dmp
memory/3808-21-0x00007FF9F05E0000-0x00007FF9F0F84000-memory.dmp
memory/3808-18-0x00007FF9F05E0000-0x00007FF9F0F84000-memory.dmp
memory/5132-10-0x00007FF9F05E0000-0x00007FF9F0F84000-memory.dmp
memory/5132-0-0x00007FF9F076F000-0x00007FF9F0770000-memory.dmp
memory/5132-2-0x00007FF9F05E0000-0x00007FF9F0F84000-memory.dmp
memory/5132-13-0x00007FF9F05E0000-0x00007FF9F0F84000-memory.dmp
memory/5132-14-0x00007FF9F05E0000-0x00007FF9F0F84000-memory.dmp
memory/5132-12-0x00007FF9F05E0000-0x00007FF9F0F84000-memory.dmp
memory/5132-1-0x0000000000470000-0x0000000000794000-memory.dmp
memory/5132-11-0x00007FF9F05E0000-0x00007FF9F0F84000-memory.dmp
memory/5132-8-0x00007FF9F05E0000-0x00007FF9F0F84000-memory.dmp
memory/5132-9-0x00007FF9F05E0000-0x00007FF9F0F84000-memory.dmp
memory/5132-7-0x00007FF9F05E0000-0x00007FF9F0F84000-memory.dmp
memory/5132-17-0x00007FF9F05E0000-0x00007FF9F0F84000-memory.dmp
memory/5132-6-0x00007FF9F05E0000-0x00007FF9F0F84000-memory.dmp
memory/5132-5-0x00007FF9F05E0000-0x00007FF9F0F84000-memory.dmp
memory/5132-4-0x00007FF9F05E0000-0x00007FF9F0F84000-memory.dmp
memory/5132-3-0x00007FF9F05E0000-0x00007FF9F0F84000-memory.dmp