Analysis
- max time kernel
149s - max time network
146s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
18/02/2026, 16:32
General
- Target b17c1605a8564b9772a2a90db59803ce70a2dbaeefcb3a7aedec732b87146b2f.exe
- Size 5.3MB
- Sample260218-t2bf7ses6f
- SHA256 b17c1605a8564b9772a2a90db59803ce70a2dbaeefcb3a7aedec732b87146b2f
Malware Config
Extracted
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quasar
-
1.4.1
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WELCOME
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cbzr-98pq1.ydns.eu:4045
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code1.ydns.eu:9302
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0235e291-5d04-4fa3-932c-869aeec5143W99
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encryption_key
3145298725BA5E0DD56E87FFE3F8898EA81E6EDA
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install_name
Notepad.exe
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key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
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log_directory
Logs
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reconnect_delay
6000
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startup_key
Notepad
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subdirectory
System32
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar family
- Quasar payload 1 IoCs
- .NET Reactor proctector 64 IoCs
Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.
- Executes dropped EXE 4 IoCs
- Suspicious use of SetThreadContext 3 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 8 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 12 IoCs
- Suspicious use of AdjustPrivilegeToken 6 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 33 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\b17c1605a8564b9772a2a90db59803ce70a2dbaeefcb3a7aedec732b87146b2f.exe"C:\Users\Admin\AppData\Local\Temp\b17c1605a8564b9772a2a90db59803ce70a2dbaeefcb3a7aedec732b87146b2f.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\b17c1605a8564b9772a2a90db59803ce70a2dbaeefcb3a7aedec732b87146b2f.exe"C:\Users\Admin\AppData\Local\Temp\b17c1605a8564b9772a2a90db59803ce70a2dbaeefcb3a7aedec732b87146b2f.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\b17c1605a8564b9772a2a90db59803ce70a2dbaeefcb3a7aedec732b87146b2f.exe"C:\Users\Admin\AppData\Local\Temp\b17c1605a8564b9772a2a90db59803ce70a2dbaeefcb3a7aedec732b87146b2f.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\b17c1605a8564b9772a2a90db59803ce70a2dbaeefcb3a7aedec732b87146b2f.exe"C:\Users\Admin\AppData\Local\Temp\b17c1605a8564b9772a2a90db59803ce70a2dbaeefcb3a7aedec732b87146b2f.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\b17c1605a8564b9772a2a90db59803ce70a2dbaeefcb3a7aedec732b87146b2f.exe"C:\Users\Admin\AppData\Local\Temp\b17c1605a8564b9772a2a90db59803ce70a2dbaeefcb3a7aedec732b87146b2f.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "Notepad" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\System32\Notepad.exe" /rl HIGHEST /f3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
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C:\Users\Admin\AppData\Roaming\System32\Notepad.exe"C:\Users\Admin\AppData\Roaming\System32\Notepad.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\System32\Notepad.exe"C:\Users\Admin\AppData\Roaming\System32\Notepad.exe"4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "Notepad" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\System32\Notepad.exe" /rl HIGHEST /f5⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
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C:\Users\Admin\AppData\Roaming\System32\Notepad.exeC:\Users\Admin\AppData\Roaming\System32\Notepad.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\System32\Notepad.exe"C:\Users\Admin\AppData\Roaming\System32\Notepad.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
b17c1605a8564b9772a2a90db59803ce70a2dbaeefcb3a7aedec732b87146b2f.exe.log
Notepad.exe
memory/2348-501-0x0000000000400000-0x0000000000724000-memory.dmp
memory/2348-502-0x0000000005E30000-0x0000000005E40000-memory.dmp
memory/4292-0-0x0000000000190000-0x00000000006EE000-memory.dmp
memory/4292-1-0x0000000005740000-0x0000000005CE6000-memory.dmp
memory/4292-2-0x0000000005230000-0x00000000052C2000-memory.dmp
memory/4292-3-0x0000000005370000-0x000000000540C000-memory.dmp
memory/4292-4-0x00000000051F0000-0x0000000005200000-memory.dmp
memory/4292-5-0x00000000052E0000-0x00000000052EA000-memory.dmp
memory/4292-6-0x0000000005500000-0x0000000005552000-memory.dmp
memory/4292-52-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-54-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-126-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-128-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-132-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-130-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-124-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-122-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-120-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-481-0x0000000005580000-0x0000000005581000-memory.dmp
memory/4292-118-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-116-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-114-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-482-0x0000000005D80000-0x0000000005D96000-memory.dmp
memory/4292-112-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-110-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-108-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-104-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-102-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-100-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-98-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-96-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-94-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-92-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-88-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-86-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-84-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-82-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-80-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-106-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-90-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-76-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-74-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-72-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-71-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-68-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-66-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-64-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-62-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-60-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-58-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-50-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-48-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-46-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-44-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-42-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-40-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-38-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-34-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-32-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-30-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-28-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-26-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-24-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-22-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-20-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-18-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-78-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-56-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-16-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-14-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-12-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-36-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-10-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-8-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-7-0x0000000005500000-0x000000000555F000-memory.dmp
memory/4292-483-0x00000000051F0000-0x0000000005200000-memory.dmp
memory/4292-484-0x0000000009730000-0x0000000009746000-memory.dmp
memory/4292-485-0x0000000004BD0000-0x0000000004BD6000-memory.dmp
memory/4292-486-0x00000000051F0000-0x0000000005200000-memory.dmp
memory/4292-489-0x00000000051F0000-0x0000000005200000-memory.dmp
memory/5992-1490-0x0000000006BB0000-0x00000000071C8000-memory.dmp
memory/5992-1494-0x0000000006740000-0x0000000006790000-memory.dmp
memory/5992-1495-0x00000000069B0000-0x0000000006A62000-memory.dmp
memory/5992-1498-0x0000000007D40000-0x0000000007D52000-memory.dmp
memory/5992-1499-0x0000000007DA0000-0x0000000007DDC000-memory.dmp
memory/5992-1500-0x0000000007E50000-0x0000000007EB6000-memory.dmp