Analysis
- user interaction
yes - max time kernel
59s - max time network
61s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
01/04/2026, 11:13
General
- Target aiscore.it.exe
- Size 3.1MB
- Sample260401-nbd7hsbz6m
- SHA256 70d05e748434a2c9c2f24f94050bd6443c231132ab4748962b22053345680d53
Malware Config
Extracted
-
quasar
-
1.4.1
-
aiscore.it.com
-
aiscore.it.com:80
-
aiscore.it.com:8080
-
aiscore.it.com:443
-
aiscore.it.com:8443
-
dc84e7d7-1880-44d7-b9b1-977a69077998
-
encryption_key
576D1496F563366ADEBFC3046D6584BB4AD91241
-
install_name
Client.exe
-
key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
-
log_directory
Logs
-
reconnect_delay
1
-
startup_key
https://aiscore.it.com
-
subdirectory
SubDir
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar family
- Quasar payload 1 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SendNotifyMessage 1 IoCs
- Suspicious use of WriteProcessMemory 1 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\aiscore.it.exe"C:\Users\Admin\AppData\Local\Temp\aiscore.it.exe"1⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "https://aiscore.it.com" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
-
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
memory/1124-0-0x0000000000110000-0x0000000000434000-memory.dmp
memory/1124-1-0x00000000025D0000-0x00000000025E0000-memory.dmp
memory/1124-2-0x000000001BCB0000-0x000000001BD00000-memory.dmp
memory/1124-3-0x000000001BDC0000-0x000000001BE72000-memory.dmp
memory/1124-4-0x000000001B020000-0x000000001B10A000-memory.dmp
memory/1124-7-0x00000000025D0000-0x00000000025E0000-memory.dmp
memory/1124-6-0x00000000026F0000-0x0000000002702000-memory.dmp
memory/1124-5-0x0000000002510000-0x000000000251C000-memory.dmp