Analysis
- max time kernel
149s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
12/07/2026, 10:07
General
- Target phimsexvn.asia.exe
- Size 3.1MB
- Sample260712-l53qvsf19m
- SHA256 3e2afa0f6d19f8b9abe310144a4a794cbe61942aac742d2672690531b27a7873
Malware Config
Extracted
-
quasar
-
1.4.1
-
Office04
-
phimsexvn.asia:443
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www.phimsexvn.asia:443
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phimsexvn.asia:80
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www.phimsexvn.asia:80
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895cf01d-1899-4ba8-80c7-51cbad511fc0
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encryption_key
ED3227F773701D05083B11A65776F95F93EEEF5E
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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\phimsexvn.asia.exe"C:\Users\Admin\AppData\Local\Temp\phimsexvn.asia.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
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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 /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/2980-8-0x00007FFB19440000-0x00007FFB19DE4000-memory.dmp
memory/2980-10-0x00007FFB19440000-0x00007FFB19DE4000-memory.dmp
memory/2980-3-0x00007FFB19440000-0x00007FFB19DE4000-memory.dmp
memory/2980-4-0x00007FFB19440000-0x00007FFB19DE4000-memory.dmp
memory/2980-5-0x00007FFB19440000-0x00007FFB19DE4000-memory.dmp
memory/2980-7-0x00007FFB19440000-0x00007FFB19DE4000-memory.dmp
memory/2980-2-0x00007FFB19440000-0x00007FFB19DE4000-memory.dmp
memory/2980-6-0x00007FFB19440000-0x00007FFB19DE4000-memory.dmp
memory/2980-9-0x00007FFB19440000-0x00007FFB19DE4000-memory.dmp
memory/2980-1-0x00000000001F0000-0x0000000000514000-memory.dmp
memory/2980-11-0x00007FFB19440000-0x00007FFB19DE4000-memory.dmp
memory/2980-12-0x00007FFB19440000-0x00007FFB19DE4000-memory.dmp
memory/2980-13-0x00007FFB19440000-0x00007FFB19DE4000-memory.dmp
memory/2980-16-0x00007FFB19440000-0x00007FFB19DE4000-memory.dmp
memory/2980-15-0x00007FFB19440000-0x00007FFB19DE4000-memory.dmp
memory/2980-0-0x00007FFB195CF000-0x00007FFB195D0000-memory.dmp
memory/4156-17-0x00007FFB19440000-0x00007FFB19DE4000-memory.dmp
memory/4156-18-0x00007FFB19440000-0x00007FFB19DE4000-memory.dmp
memory/4156-19-0x00007FFB19440000-0x00007FFB19DE4000-memory.dmp
memory/4156-20-0x00007FFB19440000-0x00007FFB19DE4000-memory.dmp
memory/4156-21-0x00007FFB19440000-0x00007FFB19DE4000-memory.dmp
memory/4156-22-0x00007FFB19440000-0x00007FFB19DE4000-memory.dmp
memory/4156-23-0x00007FFB19440000-0x00007FFB19DE4000-memory.dmp
memory/4156-24-0x00007FFB19440000-0x00007FFB19DE4000-memory.dmp
memory/4156-25-0x00007FFB19440000-0x00007FFB19DE4000-memory.dmp
memory/4156-26-0x00007FFB19440000-0x00007FFB19DE4000-memory.dmp
memory/4156-27-0x00007FFB19440000-0x00007FFB19DE4000-memory.dmp
memory/4156-28-0x00007FFB19440000-0x00007FFB19DE4000-memory.dmp
memory/4156-29-0x00007FFB19440000-0x00007FFB19DE4000-memory.dmp
memory/4156-30-0x00007FFB19440000-0x00007FFB19DE4000-memory.dmp
memory/4156-33-0x000000001D6E0000-0x000000001D792000-memory.dmp
memory/4156-32-0x000000001D5D0000-0x000000001D620000-memory.dmp
memory/4156-34-0x00007FFB19440000-0x00007FFB19DE4000-memory.dmp