Analysis
- max time kernel
148s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20231130-en - resource tags
- submitted
12/12/2023, 17:37
General
- Target Client-built.exe
- Size 3.1MB
- Sample231212-v7mxvsaha4
- SHA256 aac3318a190c7dc53512c3b492cd1cd6849b5095fb1f112ba296f9c079194340
Score
10/10
Malware Config
Extracted
Family
-
quasar
Version
-
1.4.1
Botnet
-
Office04
C2
-
91.92.242.148:4782
Mutex
-
19d192fd-6b6a-462a-816d-c6a2102fb462
Attributes
-
encryption_key
5E1B833088E17261392F4E2B5745DF67141AEEA1
-
install_name
Client.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Quasar Client Startup
-
subdirectory
SubDir
Signatures
- 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 v15
Replay Monitor
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Downloads
memory/4892-0-0x0000000000540000-0x0000000000864000-memory.dmp
memory/4892-1-0x00007FFFC8810000-0x00007FFFC92D1000-memory.dmp
memory/4892-2-0x000000001B4B0000-0x000000001B4C0000-memory.dmp
memory/4892-3-0x000000001BF50000-0x000000001BFA0000-memory.dmp
memory/4892-4-0x000000001C060000-0x000000001C112000-memory.dmp
memory/4892-5-0x00007FFFC8810000-0x00007FFFC92D1000-memory.dmp
memory/4892-6-0x000000001B4B0000-0x000000001B4C0000-memory.dmp