Analysis
- user interaction
yes - max time kernel
149s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
02/08/2026, 05:43
General
- Target Client-built.exe
- Size 3.1MB
- Sample260802-getcaawaja
- SHA256 49c3c8893145369089e941a46e06a12148190578dc4602aa90974c9a55aabd48
Score
10/10
Malware Config
Extracted
Family
-
quasar
Version
-
1.4.1
Botnet
-
Office04
C2
-
scorereport.com.co:443
-
alexray.co:443
Mutex
-
113a1acf-eae6-48f6-993c-1b6f95dce078
Attributes
-
encryption_key
F099FC50E900CAA52299FD44FD3089CF7142A9BF
-
install_name
Client.exe
-
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
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SendNotifyMessage 1 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Client-built.exe"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
Client.exe
memory/1528-0-0x0000000000BD0000-0x0000000000EF4000-memory.dmp
memory/1528-1-0x0000000001BB0000-0x0000000001BC0000-memory.dmp
memory/3616-7-0x000000001B4B0000-0x000000001B4C0000-memory.dmp
memory/3616-8-0x000000001C7D0000-0x000000001C820000-memory.dmp
memory/3616-9-0x000000001C8E0000-0x000000001C992000-memory.dmp