Analysis
- max time kernel
149s - max time network
154s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
13/11/2026, 06:08
General
- Target Client-built.exe
- Size 3.1MB
- Sample261113-gv8rxags6y
- SHA256 3448f44908d2c939729204679cb7ea9c8ef3752b3baea7bdbe037040bf2b78e8
Malware Config
Extracted
-
quasar
-
1.4.1
-
Office04
-
shop.soiferba.com:4782
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shop.hempnationonline.com:4782
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newsagriculture.in:4782
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play.euro444.bet:4782
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vn.heuriger-grill.com:4782
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member.gamehb88.com:4782
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cd1.sng77.vip:4782
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blog.webmium.com.co:4782
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https://blog.webmium.com.co/vi-vn/:4782
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star.sng77.vip:4782
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shop.3angles.io:4782
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https://www.mm99.com/home/:4782
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www.mm99.com:4782
-
821e7b0a-7fb2-4cd8-a4c9-a3a4967be3fb
-
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 1 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 2 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-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
-
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⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
Client.exe
memory/3136-17-0x00007FF943FE0000-0x00007FF944984000-memory.dmp
memory/3136-1-0x00000000007F0000-0x0000000000B14000-memory.dmp
memory/3136-3-0x00007FF943FE0000-0x00007FF944984000-memory.dmp
memory/3136-4-0x00007FF943FE0000-0x00007FF944984000-memory.dmp
memory/3136-5-0x00007FF943FE0000-0x00007FF944984000-memory.dmp
memory/3136-6-0x00007FF943FE0000-0x00007FF944984000-memory.dmp
memory/3136-7-0x00007FF943FE0000-0x00007FF944984000-memory.dmp
memory/3136-8-0x00007FF943FE0000-0x00007FF944984000-memory.dmp
memory/3136-9-0x00007FF943FE0000-0x00007FF944984000-memory.dmp
memory/3136-10-0x00007FF943FE0000-0x00007FF944984000-memory.dmp
memory/3136-16-0x00007FF943FE0000-0x00007FF944984000-memory.dmp
memory/3136-0-0x00007FF94416F000-0x00007FF944170000-memory.dmp
memory/3136-2-0x00007FF943FE0000-0x00007FF944984000-memory.dmp
memory/5668-28-0x0000000002A40000-0x0000000002A90000-memory.dmp
memory/5668-24-0x00007FF943FE0000-0x00007FF944984000-memory.dmp
memory/5668-20-0x00007FF943FE0000-0x00007FF944984000-memory.dmp
memory/5668-21-0x00007FF943FE0000-0x00007FF944984000-memory.dmp
memory/5668-22-0x00007FF943FE0000-0x00007FF944984000-memory.dmp
memory/5668-19-0x00007FF943FE0000-0x00007FF944984000-memory.dmp
memory/5668-25-0x00007FF943FE0000-0x00007FF944984000-memory.dmp
memory/5668-26-0x00007FF943FE0000-0x00007FF944984000-memory.dmp
memory/5668-23-0x00007FF943FE0000-0x00007FF944984000-memory.dmp
memory/5668-18-0x00007FF943FE0000-0x00007FF944984000-memory.dmp
memory/5668-29-0x000000001C8A0000-0x000000001C952000-memory.dmp
memory/5668-30-0x00007FF943FE0000-0x00007FF944984000-memory.dmp
memory/5668-31-0x00007FF943FE0000-0x00007FF944984000-memory.dmp