Analysis
- max time kernel
150s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
03/09/2026, 13:45
General
- Target jun88official.net.exe
- Size 3.1MB
- Sample260903-q2w65aybmd
- SHA256 45f565f81e9a91c410660ac118c7d2ecd747cc83f61361c9c9410acc5451755d
Malware Config
Extracted
-
quasar
-
1.4.1
-
Office04
-
jun88official.net:443
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www.jun88official.net:443
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jun88official.net:80
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www.jun88official.net:80
-
e1dfa38f-f86f-4bcf-8440-9f5cc5566f58
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encryption_key
ED3227F773701D05083B11A65776F95F93EEEF5E
-
install_name
Client.exe
-
key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
-
log_directory
Logs
-
reconnect_delay
3000
-
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\jun88official.net.exe"C:\Users\Admin\AppData\Local\Temp\jun88official.net.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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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
-
-
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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/2720-8-0x00007FF9130A0000-0x00007FF913A44000-memory.dmp
memory/2720-10-0x00007FF9130A0000-0x00007FF913A44000-memory.dmp
memory/2720-3-0x00007FF9130A0000-0x00007FF913A44000-memory.dmp
memory/2720-4-0x00007FF9130A0000-0x00007FF913A44000-memory.dmp
memory/2720-5-0x00007FF9130A0000-0x00007FF913A44000-memory.dmp
memory/2720-6-0x00007FF9130A0000-0x00007FF913A44000-memory.dmp
memory/2720-2-0x00007FF9130A0000-0x00007FF913A44000-memory.dmp
memory/2720-7-0x00007FF9130A0000-0x00007FF913A44000-memory.dmp
memory/2720-9-0x00007FF9130A0000-0x00007FF913A44000-memory.dmp
memory/2720-23-0x00007FF9130A0000-0x00007FF913A44000-memory.dmp
memory/2720-11-0x00007FF9130A0000-0x00007FF913A44000-memory.dmp
memory/2720-12-0x00007FF9130A0000-0x00007FF913A44000-memory.dmp
memory/2720-13-0x00007FF9130A0000-0x00007FF913A44000-memory.dmp
memory/2720-14-0x00007FF9130A0000-0x00007FF913A44000-memory.dmp
memory/2720-1-0x0000000000610000-0x0000000000934000-memory.dmp
memory/2720-0-0x00007FF91322F000-0x00007FF913230000-memory.dmp
memory/4072-16-0x00007FF9130A0000-0x00007FF913A44000-memory.dmp
memory/4072-18-0x00007FF9130A0000-0x00007FF913A44000-memory.dmp
memory/4072-19-0x00007FF9130A0000-0x00007FF913A44000-memory.dmp
memory/4072-20-0x00007FF9130A0000-0x00007FF913A44000-memory.dmp
memory/4072-21-0x00007FF9130A0000-0x00007FF913A44000-memory.dmp
memory/4072-24-0x00007FF9130A0000-0x00007FF913A44000-memory.dmp
memory/4072-25-0x00007FF9130A0000-0x00007FF913A44000-memory.dmp
memory/4072-26-0x00007FF9130A0000-0x00007FF913A44000-memory.dmp
memory/4072-27-0x00007FF9130A0000-0x00007FF913A44000-memory.dmp
memory/4072-17-0x00007FF9130A0000-0x00007FF913A44000-memory.dmp
memory/4072-28-0x00007FF9130A0000-0x00007FF913A44000-memory.dmp
memory/4072-29-0x00007FF9130A0000-0x00007FF913A44000-memory.dmp
memory/4072-22-0x00007FF9130A0000-0x00007FF913A44000-memory.dmp
memory/4072-31-0x000000001D440000-0x000000001D490000-memory.dmp
memory/4072-32-0x000000001D550000-0x000000001D602000-memory.dmp
memory/4072-33-0x00007FF9130A0000-0x00007FF913A44000-memory.dmp
memory/4072-34-0x00007FF9130A0000-0x00007FF913A44000-memory.dmp