Analysis
- max time kernel
150s - max time network
160s - platform
windows10-2004_x64 - resource
win10v2004-20240412-en - resource tags
- submitted
17/04/2024, 16:58
General
- Target hackist.exe
- Size 3.1MB
- Sample240417-vg83eaga76
- SHA256 38ed9c3c0a1ff424c8360f8514eb034520061e7eb11a677b5c89dbbcf06260d5
Malware Config
Extracted
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quasar
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1.4.1
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Offnn
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127.0.0.0:4782
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127.0.0.1:4782
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revivededd-39870.portmap.host:39870
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revivededd-39870.portmap.host:7777
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0edcddf2-c29d-4f2c-a25e-3d1b6a907f7b
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encryption_key
A91D3A82F92AE9D8F9D5AE251C12A3542632C240
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install_name
Oiwc.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
ju
-
subdirectory
SubDir
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 2 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 8 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
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C:\Users\Admin\AppData\Local\Temp\hackist.exe"C:\Users\Admin\AppData\Local\Temp\hackist.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "ju" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Oiwc.exe" /rl HIGHEST /f2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Roaming\SubDir\Oiwc.exe"C:\Users\Admin\AppData\Roaming\SubDir\Oiwc.exe"2⤵
- Checks computer location settings
- 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 "ju" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Oiwc.exe" /rl HIGHEST /f3⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\haSI0lJVx1pk.exe"C:\Users\Admin\AppData\Local\Temp\haSI0lJVx1pk.exe"3⤵
- Executes dropped EXE
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
haSI0lJVx1pk.exe
Oiwc.exe
memory/432-16-0x000000001C9E0000-0x000000001CA1C000-memory.dmp
memory/432-13-0x00007FF973090000-0x00007FF973B51000-memory.dmp
memory/432-15-0x000000001BBE0000-0x000000001BBF2000-memory.dmp
memory/432-9-0x00007FF973090000-0x00007FF973B51000-memory.dmp
memory/432-10-0x000000001BC10000-0x000000001BC20000-memory.dmp
memory/432-11-0x000000001BB90000-0x000000001BBE0000-memory.dmp
memory/432-12-0x000000001C1E0000-0x000000001C292000-memory.dmp
memory/432-14-0x000000001BC10000-0x000000001BC20000-memory.dmp
memory/1532-2-0x0000000002A10000-0x0000000002A20000-memory.dmp
memory/1532-8-0x00007FF973090000-0x00007FF973B51000-memory.dmp
memory/1532-0-0x00000000004B0000-0x00000000007D4000-memory.dmp
memory/1532-1-0x00007FF973090000-0x00007FF973B51000-memory.dmp
memory/2968-28-0x00000142D1600000-0x00000142D1D08000-memory.dmp
memory/2968-29-0x00007FF973090000-0x00007FF973B51000-memory.dmp
memory/2968-30-0x00000142D2130000-0x00000142D2140000-memory.dmp
memory/2968-31-0x00007FF973090000-0x00007FF973B51000-memory.dmp