Analysis
- max time kernel
149s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
11/11/2026, 07:33
General
- Target csslot777.vip.exe
- Size 3.1MB
- Sample261111-jdqacafe87
- SHA256 66d993ff35050f4678aa08e6267979c9676f54c8553970f1a0369b50ceae7c14
Malware Config
Extracted
-
quasar
-
1.4.1
-
Office04
-
csslot777.vip:443
-
www.csslot777.vip:443
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csslot777.vip:80
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www.csslot777.vip:80
-
114a0b02-4825-410c-a0ee-93cd6e67357d
-
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 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\csslot777.vip.exe"C:\Users\Admin\AppData\Local\Temp\csslot777.vip.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
-
-
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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
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Downloads
Client.exe
memory/796-28-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/796-27-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/796-36-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/796-35-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/796-33-0x000000001D100000-0x000000001D150000-memory.dmp
memory/796-34-0x000000001D210000-0x000000001D2C2000-memory.dmp
memory/796-29-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/796-30-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/796-26-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/796-25-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/796-24-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/796-20-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/796-22-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/796-23-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/796-21-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/5008-0-0x00007FFF15F2F000-0x00007FFF15F30000-memory.dmp
memory/5008-1-0x00000000003B0000-0x00000000006D4000-memory.dmp
memory/5008-13-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/5008-12-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/5008-11-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/5008-9-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/5008-14-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/5008-10-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/5008-8-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/5008-2-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/5008-31-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/5008-7-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/5008-6-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/5008-5-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/5008-4-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp
memory/5008-3-0x00007FFF15DA0000-0x00007FFF16744000-memory.dmp