Analysis
- max time kernel
149s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
14/10/2026, 08:41
General
- Target eighty7.nl.exe
- Size 3.1MB
- Sample261014-klveps11ex
- SHA256 671d87531cad22824dfea62d46f7bb8d5c70c23169d3765e28f663afbb4c55cf
Malware Config
Extracted
-
quasar
-
1.4.1
-
Office04
-
eighty7.nl:443
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www.eighty7.nl:443
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eighty7.nl:80
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www.eighty7.nl:80
-
d5d268a0-e486-49cb-9c41-96cb24d5577e
-
encryption_key
ED3227F773701D05083B11A65776F95F93EEEF5E
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install_name
Client.exe
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key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Quasar Client Startup
-
subdirectory
SubDir
Signatures
- Family: Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 2 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 2 IoCs
- Suspicious use of WriteProcessMemory 2 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
-
C:\Users\Admin\AppData\Local\Temp\eighty7.nl.exe"C:\Users\Admin\AppData\Local\Temp\eighty7.nl.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
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
-
-
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
-
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
-
-
-
C:\Users\Admin\AppData\Roaming\SubDir\Client.exeC:\Users\Admin\AppData\Roaming\SubDir\Client.exe1⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
Client.exe
memory/2588-8-0x00007FFB06CE0000-0x00007FFB07684000-memory.dmp
memory/2588-10-0x00007FFB06CE0000-0x00007FFB07684000-memory.dmp
memory/2588-3-0x00007FFB06CE0000-0x00007FFB07684000-memory.dmp
memory/2588-4-0x00007FFB06CE0000-0x00007FFB07684000-memory.dmp
memory/2588-5-0x00007FFB06CE0000-0x00007FFB07684000-memory.dmp
memory/2588-6-0x00007FFB06CE0000-0x00007FFB07684000-memory.dmp
memory/2588-2-0x00007FFB06CE0000-0x00007FFB07684000-memory.dmp
memory/2588-7-0x00007FFB06CE0000-0x00007FFB07684000-memory.dmp
memory/2588-9-0x00007FFB06CE0000-0x00007FFB07684000-memory.dmp
memory/2588-17-0x00007FFB06CE0000-0x00007FFB07684000-memory.dmp
memory/2588-11-0x00007FFB06CE0000-0x00007FFB07684000-memory.dmp
memory/2588-12-0x00007FFB06CE0000-0x00007FFB07684000-memory.dmp
memory/2588-13-0x00007FFB06CE0000-0x00007FFB07684000-memory.dmp
memory/2588-14-0x00007FFB06CE0000-0x00007FFB07684000-memory.dmp
memory/2588-0-0x00007FFB06E6F000-0x00007FFB06E70000-memory.dmp
memory/2588-1-0x0000000000E40000-0x0000000001164000-memory.dmp
memory/5732-16-0x00007FFB06CE0000-0x00007FFB07684000-memory.dmp
memory/5732-18-0x00007FFB06CE0000-0x00007FFB07684000-memory.dmp
memory/5732-21-0x00007FFB06CE0000-0x00007FFB07684000-memory.dmp
memory/5732-20-0x00007FFB06CE0000-0x00007FFB07684000-memory.dmp
memory/5732-19-0x00007FFB06CE0000-0x00007FFB07684000-memory.dmp
memory/5732-22-0x00007FFB06CE0000-0x00007FFB07684000-memory.dmp
memory/5732-23-0x00007FFB06CE0000-0x00007FFB07684000-memory.dmp
memory/5732-24-0x00007FFB06CE0000-0x00007FFB07684000-memory.dmp
memory/5732-25-0x00007FFB06CE0000-0x00007FFB07684000-memory.dmp
memory/5732-26-0x00007FFB06CE0000-0x00007FFB07684000-memory.dmp
memory/5732-27-0x00007FFB06CE0000-0x00007FFB07684000-memory.dmp
memory/5732-28-0x00007FFB06CE0000-0x00007FFB07684000-memory.dmp
memory/5732-30-0x000000001C930000-0x000000001C9E2000-memory.dmp
memory/5732-29-0x000000001C820000-0x000000001C870000-memory.dmp
memory/5732-32-0x00007FFB06CE0000-0x00007FFB07684000-memory.dmp
memory/5732-33-0x00007FFB06CE0000-0x00007FFB07684000-memory.dmp