Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
10/09/2026, 23:54
General
- Target 14e5fb1883ebde0d5300ac4c89deae9d3d851b74ec6b362fb47fff9f23827fe7.exe
- Size 3.1MB
- Sample260910-3x82cafa89
- SHA256 14e5fb1883ebde0d5300ac4c89deae9d3d851b74ec6b362fb47fff9f23827fe7
Malware Config
Extracted
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quasar
-
1.4.1
-
Crypter
-
41.216.188.90:8081
-
af3f7719-a55b-45fb-b404-3b668373f9e1
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encryption_key
B0D85051FDA8AE726A60C9ED332EE7CD8FFEAB80
-
install_name
Updater.exe
-
key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Windows Update
-
subdirectory
Windows Data
Signatures
- Family: DonutLoader
DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.
- Family: Quasar RAT
Quasar is an open source Remote Access Tool.
- Detects DonutLoader 1 IoCs
- Quasar payload 1 IoCs
- Executes dropped EXE 1 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 4 IoCs
- Suspicious use of SetWindowsHookEx 1 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
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C:\Users\Admin\AppData\Local\Temp\14e5fb1883ebde0d5300ac4c89deae9d3d851b74ec6b362fb47fff9f23827fe7.exe"C:\Users\Admin\AppData\Local\Temp\14e5fb1883ebde0d5300ac4c89deae9d3d851b74ec6b362fb47fff9f23827fe7.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Windows Update" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Windows Data\Updater.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Roaming\Windows Data\Updater.exe"C:\Users\Admin\AppData\Roaming\Windows Data\Updater.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 "Windows Update" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Windows Data\Updater.exe" /rl HIGHEST /f3⤵
- Scheduled Task/Job: Scheduled Task
-
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
Updater.exe
memory/888-15-0x000000001BBD0000-0x000000001BBE0000-memory.dmp
memory/888-16-0x000000001D740000-0x000000001D790000-memory.dmp
memory/888-17-0x000000001E1B0000-0x000000001E262000-memory.dmp
memory/888-18-0x000000001BBD0000-0x000000001BBE0000-memory.dmp
memory/3052-0-0x0000000000BF0000-0x0000000000BF8000-memory.dmp
memory/3052-1-0x0000000002C70000-0x0000000002C80000-memory.dmp
memory/3052-2-0x000000001B790000-0x000000001BAB3000-memory.dmp
memory/3052-5-0x000000001CF40000-0x000000001D264000-memory.dmp
memory/3052-7-0x0000000002C70000-0x0000000002C80000-memory.dmp
memory/3052-6-0x0000000002C70000-0x0000000002C80000-memory.dmp
memory/3052-8-0x0000000002C70000-0x0000000002C80000-memory.dmp