Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
13/08/2026, 15:00
General
- Target B09A2A9617128B1F0F2428135F3CCA94.exe
- Size 3.1MB
- Sample260813-sdrylsbl2s
- SHA256 9f09f4ee2422a1707836b429124ee6ec006576190f294cf2702f82a5e411af2f
Score
10/10
Malware Config
Extracted
Family
-
quasar
Version
-
1.4.1
Botnet
-
Office04
C2
-
94.154.34.203:1604
Mutex
-
ef54d9e6-8fa9-4028-b5ac-6394d231d215
Attributes
-
encryption_key
9B4C3FF8DC5891693F443320E3C1167C7CEBE2B7
-
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
- Looks up external IP address via web service 1 TTPs 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- 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 2 IoCs
- Suspicious use of SendNotifyMessage 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\B09A2A9617128B1F0F2428135F3CCA94.exe"C:\Users\Admin\AppData\Local\Temp\B09A2A9617128B1F0F2428135F3CCA94.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
memory/4520-0-0x0000000000930000-0x0000000000C54000-memory.dmp
memory/4520-1-0x0000000002E00000-0x0000000002E10000-memory.dmp
memory/4520-2-0x000000001C450000-0x000000001C4A0000-memory.dmp
memory/4520-3-0x000000001C560000-0x000000001C612000-memory.dmp
memory/4520-6-0x0000000002E00000-0x0000000002E10000-memory.dmp