Analysis
- max time kernel
4s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
11/11/2026, 07:36
General
- Target Client-built.exe
- Size 3.1MB
- Sample261111-jfhnaaev4l
- SHA256 e2368c18f7ad973b602c52991a2e4f8c7f12c26bfebd8ea82086a4ef849709cc
Malware Config
Extracted
-
quasar
-
1.4.1
-
Office04
-
coupons.expertsanswer.in:4782
-
coupons.expertsanswer.in:4444
-
coupons.expertsanswer.in:443
-
coupons.expertsanswer.in:8080
-
coupons.expertsanswer.in:881
-
coupons.expertsanswer.in:8888
-
member.ufasexygame8.com:4782
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member.ufasexygame8.com:4444
-
member.ufasexygame8.com:443
-
member.ufasexygame8.com:8080
-
member.ufasexygame8.com:881
-
member.ufasexygame8.com:8888
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perception.cetb.in:4782
-
perception.cetb.in:4444
-
perception.cetb.in:443
-
perception.cetb.in:8080
-
perception.cetb.in:881
-
perception.cetb.in:8888
-
rising.cetb.in:4782
-
rising.cetb.in:4444
-
0406e01f-5c44-45d9-836b-5932084506ff
-
encryption_key
61D61573755A2E8791F777F44FE72A8C404B3F90
-
install_name
Client.exe
-
key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
-
log_directory
Logs
-
reconnect_delay
1000
-
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\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
- 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/2528-8-0x00007FFFF3BC0000-0x00007FFFF4564000-memory.dmp
memory/2528-10-0x00007FFFF3BC0000-0x00007FFFF4564000-memory.dmp
memory/2528-3-0x00007FFFF3BC0000-0x00007FFFF4564000-memory.dmp
memory/2528-4-0x00007FFFF3BC0000-0x00007FFFF4564000-memory.dmp
memory/2528-5-0x00007FFFF3BC0000-0x00007FFFF4564000-memory.dmp
memory/2528-6-0x00007FFFF3BC0000-0x00007FFFF4564000-memory.dmp
memory/2528-2-0x00007FFFF3BC0000-0x00007FFFF4564000-memory.dmp
memory/2528-7-0x00007FFFF3BC0000-0x00007FFFF4564000-memory.dmp
memory/2528-9-0x00007FFFF3BC0000-0x00007FFFF4564000-memory.dmp
memory/2528-21-0x00007FFFF3BC0000-0x00007FFFF4564000-memory.dmp
memory/2528-11-0x00007FFFF3BC0000-0x00007FFFF4564000-memory.dmp
memory/2528-12-0x00007FFFF3BC0000-0x00007FFFF4564000-memory.dmp
memory/2528-13-0x00007FFFF3BC0000-0x00007FFFF4564000-memory.dmp
memory/2528-14-0x00007FFFF3BC0000-0x00007FFFF4564000-memory.dmp
memory/2528-1-0x0000000000200000-0x0000000000526000-memory.dmp
memory/2528-0-0x00007FFFF3D4F000-0x00007FFFF3D50000-memory.dmp
memory/4564-20-0x00007FFFF3BC0000-0x00007FFFF4564000-memory.dmp
memory/4564-22-0x00007FFFF3BC0000-0x00007FFFF4564000-memory.dmp
memory/4564-23-0x00007FFFF3BC0000-0x00007FFFF4564000-memory.dmp
memory/4564-25-0x00007FFFF3BC0000-0x00007FFFF4564000-memory.dmp
memory/4564-24-0x00007FFFF3BC0000-0x00007FFFF4564000-memory.dmp
memory/4564-26-0x00007FFFF3BC0000-0x00007FFFF4564000-memory.dmp
memory/4564-27-0x00007FFFF3BC0000-0x00007FFFF4564000-memory.dmp
memory/4564-29-0x00007FFFF3BC0000-0x00007FFFF4564000-memory.dmp
memory/4564-30-0x00007FFFF3BC0000-0x00007FFFF4564000-memory.dmp
memory/4564-31-0x00007FFFF3BC0000-0x00007FFFF4564000-memory.dmp
memory/4564-32-0x00007FFFF3BC0000-0x00007FFFF4564000-memory.dmp
memory/4564-33-0x00007FFFF3BC0000-0x00007FFFF4564000-memory.dmp
memory/4564-34-0x00007FFFF3BC0000-0x00007FFFF4564000-memory.dmp
memory/4564-28-0x00007FFFF3BC0000-0x00007FFFF4564000-memory.dmp
memory/4564-37-0x000000001CEE0000-0x000000001CF92000-memory.dmp
memory/4564-36-0x000000001B9C0000-0x000000001BA10000-memory.dmp
memory/4564-38-0x00007FFFF3BC0000-0x00007FFFF4564000-memory.dmp