Analysis
- max time kernel
149s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
16/08/2026, 18:18
General
- Target Client-built.exe
- Size 3.1MB
- Sample260816-wxt4vsfc37
- SHA256 b8d565ca8bb20cd435732cf0d0e6a327230dd3820deccedbc75b5a44e252e929
Score
10/10
Malware Config
Extracted
Family
-
quasar
Version
-
1.4.1
Botnet
-
Office04
C2
-
94.158.245.53:9992
Mutex
-
4abbc77f-27e2-4983-8fe9-6fafbfb7627b
Attributes
-
encryption_key
F5CCD6560C6A9C857BE240A8EE0DF9CF88BC3B2B
-
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 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SendNotifyMessage 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 FindShellTrayWindow
- Suspicious use of SendNotifyMessage
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
memory/2072-0-0x0000000000450000-0x0000000000774000-memory.dmp
memory/2072-1-0x000000001B510000-0x000000001B520000-memory.dmp
memory/2072-2-0x000000001CC30000-0x000000001CC80000-memory.dmp
memory/2072-3-0x000000001CD40000-0x000000001CDF2000-memory.dmp
memory/2072-4-0x000000001B510000-0x000000001B520000-memory.dmp