Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
11/04/2026, 06:37
General
- Target mhy21.exe
- Size 3.1MB
- Sample260411-hdryhacy8t
- SHA256 6a878aa00dd505b215350c325a19938d5adc3a73bfd3d51abb92c17ca31702b8
Malware Config
Extracted
-
quasar
-
1.4.1
-
jjibmj.za.com
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jjibmj.za.com:80
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jjibmj.za.com:443
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jjibmj.za.com:20
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jjibmj.za.com:3306
-
dc84e7d7-1880-44d7-b9b1-977a69077998
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encryption_key
576D1496F563366ADEBFC3046D6584BB4AD91241
-
install_name
Client.exe
-
key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
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log_directory
Logs
-
reconnect_delay
10
-
startup_key
https://jjibmj.za.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\mhy21.exe"C:\Users\Admin\AppData\Local\Temp\mhy21.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://jjibmj.za.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/5048-0-0x0000000000870000-0x0000000000B94000-memory.dmp
memory/5048-1-0x0000000002E80000-0x0000000002E90000-memory.dmp
memory/5048-2-0x000000001CED0000-0x000000001CF20000-memory.dmp
memory/5048-3-0x000000001CFE0000-0x000000001D092000-memory.dmp
memory/5048-7-0x0000000002E80000-0x0000000002E90000-memory.dmp
memory/5048-6-0x0000000002E30000-0x0000000002E42000-memory.dmp
memory/5048-5-0x00000000014C0000-0x00000000014CC000-memory.dmp
memory/5048-4-0x000000001B8C0000-0x000000001C06E000-memory.dmp