Analysis
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max time kernel
62s -
max time network
64s -
platform
windows10-2004_x64 -
resource
win10v2004-20240611-en -
resource tags
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submitted
23-06-2024 20:53
General
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Target
Cyber-Security Nuker (UPDATED).exe
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Size
3.1MB
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MD5
ac73e69fc419907a58784fd50471168d
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SHA1
c936621828f889a8123f6057eb66fc38ebd6f293
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SHA256
371530ba596376ff7fd76425f681d102ab2d171675620070035cbb0e1d1a0516
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SHA512
74416db9fef10e50ab5acae785fbd005ecf16ce94022eb8a7d18d3f1bfc23242e7b5a180d6ff825281ae64fc1df513040ac87be7cb79060df96ca609e78b030e
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SSDEEP
49152:rvyI22SsaNYfdPBldt698dBcjHbdIR9karHNoGdjKTHHB72eh2NT:rvf22SsaNYfdPBldt6+dBcjHC97
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.68.67:4782
dcb0af0e-4f78-426b-9489-43ea356dc0f7
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encryption_key
0807120B930C7C14B2B5A7F6550477313E81C7B9
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Quasar Client Startup
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subdirectory
SubDir
Signatures
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Quasar RAT
Quasar is an open source Remote Access Tool.
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Quasar payload 2 IoCs
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Executes dropped EXE 1 IoCs
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Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
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Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 60 IoCs
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Suspicious use of AdjustPrivilegeToken 14 IoCs
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Suspicious use of FindShellTrayWindow 64 IoCs
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Suspicious use of SendNotifyMessage 64 IoCs
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Suspicious use of SetWindowsHookEx 1 IoCs
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Suspicious use of WriteProcessMemory 6 IoCs
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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
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C:\Users\Admin\AppData\Local\Temp\Cyber-Security Nuker (UPDATED).exe"C:\Users\Admin\AppData\Local\Temp\Cyber-Security Nuker (UPDATED).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
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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 SetWindowsHookEx
- 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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C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /41⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k SDRSVC1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Roaming\SubDir\Client.exeFilesize
3.1MB
MD5ac73e69fc419907a58784fd50471168d
SHA1c936621828f889a8123f6057eb66fc38ebd6f293
SHA256371530ba596376ff7fd76425f681d102ab2d171675620070035cbb0e1d1a0516
SHA51274416db9fef10e50ab5acae785fbd005ecf16ce94022eb8a7d18d3f1bfc23242e7b5a180d6ff825281ae64fc1df513040ac87be7cb79060df96ca609e78b030e
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memory/1476-0-0x00007FFE76233000-0x00007FFE76235000-memory.dmpFilesize
8KB
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memory/1476-1-0x0000000000200000-0x0000000000524000-memory.dmpFilesize
3.1MB
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memory/1476-2-0x00007FFE76230000-0x00007FFE76CF1000-memory.dmpFilesize
10.8MB
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memory/1476-26-0x00007FFE76230000-0x00007FFE76CF1000-memory.dmpFilesize
10.8MB
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memory/1888-22-0x00000218D55E0000-0x00000218D55E1000-memory.dmpFilesize
4KB
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memory/1888-23-0x00000218D55E0000-0x00000218D55E1000-memory.dmpFilesize
4KB
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memory/1888-34-0x00000218D7100000-0x00000218D7110000-memory.dmpFilesize
64KB
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memory/1888-13-0x00000218D55E0000-0x00000218D55E1000-memory.dmpFilesize
4KB
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memory/1888-14-0x00000218D55E0000-0x00000218D55E1000-memory.dmpFilesize
4KB
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memory/1888-15-0x00000218D55E0000-0x00000218D55E1000-memory.dmpFilesize
4KB
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memory/1888-21-0x00000218D55E0000-0x00000218D55E1000-memory.dmpFilesize
4KB
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memory/1888-25-0x00000218D55E0000-0x00000218D55E1000-memory.dmpFilesize
4KB
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memory/1888-24-0x00000218D55E0000-0x00000218D55E1000-memory.dmpFilesize
4KB
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memory/1888-28-0x00000218D70A0000-0x00000218D70B0000-memory.dmpFilesize
64KB
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memory/1888-20-0x00000218D55E0000-0x00000218D55E1000-memory.dmpFilesize
4KB
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memory/1888-19-0x00000218D55E0000-0x00000218D55E1000-memory.dmpFilesize
4KB
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memory/4660-10-0x00007FFE76230000-0x00007FFE76CF1000-memory.dmpFilesize
10.8MB
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memory/4660-9-0x00007FFE76230000-0x00007FFE76CF1000-memory.dmpFilesize
10.8MB
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memory/4660-27-0x00007FFE76230000-0x00007FFE76CF1000-memory.dmpFilesize
10.8MB
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memory/4660-11-0x000000001B9C0000-0x000000001BA10000-memory.dmpFilesize
320KB
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memory/4660-12-0x000000001BAD0000-0x000000001BB82000-memory.dmpFilesize
712KB
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memory/4660-40-0x00007FFE76230000-0x00007FFE76CF1000-memory.dmpFilesize
10.8MB