Analysis
- max time kernel
60s - max time network
56s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
11/11/2026, 06:35
General
- Target ko66 final.exe
- Size 3.1MB
- Sample261111-hca9csfa98
- SHA256 79f9ea4763751f7a7613fd8fd2c72a8834c8f1a7cda2984ef18c0705ba79a074
Malware Config
Extracted
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quasar
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1.4.1
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OK365 Client
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ko66.asia:8080
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api.ko66.asia:8080
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app.ko66.asia:8080
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www.ko66.asia:8080
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c2.ko66.asia:8080
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malware.ko66.asia:8080
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backdoor.ko66.asia:8080
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3cb6f7ce-f521-4677-b078-01e1d892b28d
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encryption_key
71514463CA895B84E7E6B4A4FC68A8243476E095
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install_name
Client.exe
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key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
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log_directory
Logs
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reconnect_delay
100
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startup_key
dkmm
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subdirectory
SubDir
Signatures
- Family: Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 2 IoCs
- Executes a command shell one-liner 1 TTPs 4 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 4 IoCs
Adversaries may check for Internet connectivity on compromised systems.
- Runs ping.exe 1 TTPs 4 IoCs
- Scheduled Task/Job: Scheduled Task 1 TTPs 5 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\ko66 final.exe"C:\Users\Admin\AppData\Local\Temp\ko66 final.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "dkmm" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
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C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"2⤵
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "dkmm" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f3⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\AHxZuNubrxpH.bat" "3⤵
- Executes a command shell one-liner
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C:\Windows\system32\chcp.comchcp 650014⤵
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C:\Windows\system32\PING.EXEping -n 10 localhost4⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
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C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"4⤵
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "dkmm" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f5⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\u88iRnl81RD4.bat" "5⤵
- Executes a command shell one-liner
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C:\Windows\system32\chcp.comchcp 650016⤵
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C:\Windows\system32\PING.EXEping -n 10 localhost6⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
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C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"6⤵
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "dkmm" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f7⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\AkWz4UANVvk7.bat" "7⤵
- Executes a command shell one-liner
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C:\Windows\system32\chcp.comchcp 650018⤵
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C:\Windows\system32\PING.EXEping -n 10 localhost8⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
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C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"8⤵
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "dkmm" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f9⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\mOB4RIKA6Bti.bat" "9⤵
- Executes a command shell one-liner
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C:\Windows\system32\chcp.comchcp 6500110⤵
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C:\Windows\system32\PING.EXEping -n 10 localhost10⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
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C:\Users\Admin\AppData\Roaming\SubDir\Client.exeC:\Users\Admin\AppData\Roaming\SubDir\Client.exe1⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
AHxZuNubrxpH.bat
AkWz4UANVvk7.bat
mOB4RIKA6Bti.bat
u88iRnl81RD4.bat
Client.exe
memory/4444-33-0x00007FFB997B0000-0x00007FFB9A154000-memory.dmp
memory/4444-35-0x00007FFB997B0000-0x00007FFB9A154000-memory.dmp
memory/4444-44-0x00007FFB997B0000-0x00007FFB9A154000-memory.dmp
memory/4444-37-0x000000001D260000-0x000000001D312000-memory.dmp
memory/4444-36-0x0000000003040000-0x0000000003090000-memory.dmp
memory/4444-34-0x00007FFB997B0000-0x00007FFB9A154000-memory.dmp
memory/4444-31-0x00007FFB997B0000-0x00007FFB9A154000-memory.dmp
memory/4444-30-0x00007FFB997B0000-0x00007FFB9A154000-memory.dmp
memory/4444-29-0x00007FFB997B0000-0x00007FFB9A154000-memory.dmp
memory/4444-28-0x00007FFB997B0000-0x00007FFB9A154000-memory.dmp
memory/4444-25-0x00007FFB997B0000-0x00007FFB9A154000-memory.dmp
memory/4444-20-0x00007FFB997B0000-0x00007FFB9A154000-memory.dmp
memory/4444-21-0x00007FFB997B0000-0x00007FFB9A154000-memory.dmp
memory/4444-22-0x00007FFB997B0000-0x00007FFB9A154000-memory.dmp
memory/4444-23-0x00007FFB997B0000-0x00007FFB9A154000-memory.dmp
memory/4444-24-0x00007FFB997B0000-0x00007FFB9A154000-memory.dmp
memory/4444-26-0x00007FFB997B0000-0x00007FFB9A154000-memory.dmp
memory/4916-6-0x00007FFB997B0000-0x00007FFB9A154000-memory.dmp
memory/4916-10-0x00007FFB997B0000-0x00007FFB9A154000-memory.dmp
memory/4916-13-0x00007FFB997B0000-0x00007FFB9A154000-memory.dmp
memory/4916-27-0x00007FFB997B0000-0x00007FFB9A154000-memory.dmp
memory/4916-12-0x00007FFB997B0000-0x00007FFB9A154000-memory.dmp
memory/4916-0-0x00007FFB9993F000-0x00007FFB99940000-memory.dmp
memory/4916-14-0x00007FFB997B0000-0x00007FFB9A154000-memory.dmp
memory/4916-9-0x00007FFB997B0000-0x00007FFB9A154000-memory.dmp
memory/4916-5-0x00007FFB997B0000-0x00007FFB9A154000-memory.dmp
memory/4916-11-0x00007FFB997B0000-0x00007FFB9A154000-memory.dmp
memory/4916-8-0x00007FFB997B0000-0x00007FFB9A154000-memory.dmp
memory/4916-4-0x00007FFB997B0000-0x00007FFB9A154000-memory.dmp
memory/4916-7-0x00007FFB997B0000-0x00007FFB9A154000-memory.dmp
memory/4916-3-0x00007FFB997B0000-0x00007FFB9A154000-memory.dmp
memory/4916-2-0x00007FFB997B0000-0x00007FFB9A154000-memory.dmp
memory/4916-1-0x0000000000E60000-0x0000000001184000-memory.dmp