Analysis
- max time kernel
149s - max time network
145s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
12/10/2026, 17:14
General
- Target HarmlessFileForCuties~.exe
- Size 3.1MB
- Sample261012-vsb7taytbx
- SHA256 650ca51048cf80b76d0450b73b41a1e12b81d8c0f3288fe67204a0be985e1693
Malware Config
Extracted
-
quasar
-
1.4.1
-
EKmeows PC
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66.49.164.6:4782
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c441358b-46c8-4db7-afc5-1e7f47ed45f9
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encryption_key
EB6FC45C12B29F4F72A3B2BC3BE26DA23EBB534C
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install_name
ntoskrnl.exe
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key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
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log_directory
Logs
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reconnect_delay
3000
-
startup_key
Windows Security Health Service
-
subdirectory
Registries
Signatures
- Family: Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 2 IoCs
- Executes dropped EXE 1 IoCs
- Drops file in System32 directory 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 2 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\HarmlessFileForCuties~.exe"C:\Users\Admin\AppData\Local\Temp\HarmlessFileForCuties~.exe"1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Windows Security Health Service" /sc ONLOGON /tr "C:\Windows\system32\Registries\ntoskrnl.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
-
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C:\Windows\system32\Registries\ntoskrnl.exe"C:\Windows\system32\Registries\ntoskrnl.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Windows Security Health Service" /sc ONLOGON /tr "C:\Windows\system32\Registries\ntoskrnl.exe" /rl HIGHEST /f3⤵
- Scheduled Task/Job: Scheduled Task
-
-
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C:\Windows\system32\Registries\ntoskrnl.exeC:\Windows\system32\Registries\ntoskrnl.exe1⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
ntoskrnl.exe
memory/2412-31-0x00007FFF1EDF0000-0x00007FFF1F794000-memory.dmp
memory/2412-19-0x000000001BA60000-0x000000001BAB0000-memory.dmp
memory/2412-29-0x00007FFF1EDF0000-0x00007FFF1F794000-memory.dmp
memory/2412-26-0x00007FFF1EDF0000-0x00007FFF1F794000-memory.dmp
memory/2412-28-0x00007FFF1EDF0000-0x00007FFF1F794000-memory.dmp
memory/2412-27-0x00007FFF1EDF0000-0x00007FFF1F794000-memory.dmp
memory/2412-25-0x00007FFF1EDF0000-0x00007FFF1F794000-memory.dmp
memory/2412-24-0x00007FFF1EDF0000-0x00007FFF1F794000-memory.dmp
memory/2412-23-0x00007FFF1EDF0000-0x00007FFF1F794000-memory.dmp
memory/2412-22-0x00007FFF1EDF0000-0x00007FFF1F794000-memory.dmp
memory/2412-20-0x00007FFF1EDF0000-0x00007FFF1F794000-memory.dmp
memory/2412-21-0x000000001CD20000-0x000000001CDD2000-memory.dmp
memory/2412-17-0x00007FFF1EDF0000-0x00007FFF1F794000-memory.dmp
memory/2412-16-0x00007FFF1EDF0000-0x00007FFF1F794000-memory.dmp
memory/5116-8-0x00007FFF1EDF0000-0x00007FFF1F794000-memory.dmp
memory/5116-9-0x00007FFF1EDF0000-0x00007FFF1F794000-memory.dmp
memory/5116-13-0x00007FFF1EDF0000-0x00007FFF1F794000-memory.dmp
memory/5116-18-0x00007FFF1EDF0000-0x00007FFF1F794000-memory.dmp
memory/5116-12-0x00007FFF1EDF0000-0x00007FFF1F794000-memory.dmp
memory/5116-11-0x00007FFF1EDF0000-0x00007FFF1F794000-memory.dmp
memory/5116-10-0x00007FFF1EDF0000-0x00007FFF1F794000-memory.dmp
memory/5116-14-0x00007FFF1EDF0000-0x00007FFF1F794000-memory.dmp
memory/5116-7-0x00007FFF1EDF0000-0x00007FFF1F794000-memory.dmp
memory/5116-0-0x00007FFF1EF7F000-0x00007FFF1EF80000-memory.dmp
memory/5116-6-0x00007FFF1EDF0000-0x00007FFF1F794000-memory.dmp
memory/5116-5-0x00007FFF1EDF0000-0x00007FFF1F794000-memory.dmp
memory/5116-4-0x00007FFF1EDF0000-0x00007FFF1F794000-memory.dmp
memory/5116-3-0x00007FFF1EDF0000-0x00007FFF1F794000-memory.dmp
memory/5116-2-0x00007FFF1EDF0000-0x00007FFF1F794000-memory.dmp
memory/5116-1-0x0000000000650000-0x0000000000974000-memory.dmp