Analysis
- max time kernel
149s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
15/09/2026, 11:34
General
- Target pc168.com.tw.exe
- Size 3.1MB
- Sample260915-npxwsaweqa
- SHA256 c3622f1596db9bf608000813be05da5ec57a3b262e199d7d6d3dab65b7571e74
Malware Config
Extracted
-
quasar
-
1.4.1
-
Office04
-
pc168.com.tw:443
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www.pc168.com.tw:443
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pc168.com.tw:80
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www.pc168.com.tw:80
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d561dd98-8b56-440c-92cd-f68beb89d5b2
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encryption_key
ED3227F773701D05083B11A65776F95F93EEEF5E
-
install_name
Client.exe
-
key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
-
log_directory
Logs
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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 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\pc168.com.tw.exe"C:\Users\Admin\AppData\Local\Temp\pc168.com.tw.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
- 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
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-
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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/1888-8-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/1888-10-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/1888-3-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/1888-4-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/1888-5-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/1888-6-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/1888-2-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/1888-7-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/1888-9-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/1888-17-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/1888-12-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/1888-11-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/1888-13-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/1888-14-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/1888-1-0x0000000000280000-0x00000000005A4000-memory.dmp
memory/1888-0-0x00007FFF15F2F000-0x00007FFF15F30000-memory.dmp
memory/4176-16-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/4176-18-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/4176-19-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/4176-20-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/4176-21-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/4176-23-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/4176-24-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/4176-25-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/4176-22-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/4176-27-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/4176-26-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/4176-28-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/4176-29-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/4176-30-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/4176-33-0x000000001D340000-0x000000001D3F2000-memory.dmp
memory/4176-32-0x000000001D230000-0x000000001D280000-memory.dmp
memory/4176-34-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/4176-35-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp