Analysis
- max time kernel
154s - max time network
165s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
06/01/2024, 09:53
General
- Target Client-built.exe
- Size 3.1MB
- Sample240106-lw4a2aeac2
- SHA256 4e01c76200fe5e4cde437fdd12b42c9d2c884018b7f9b89e097ff53ee4e75ec9
Malware Config
Extracted
-
quasar
-
1.4.1
-
Office04
-
91.92.251.28:4782
-
03ac8289-d1ca-4c45-b72e-cb527f9b533f
-
encryption_key
F066F62E3A3BF55E3BA0EA3F7564B292EB48EE92
-
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 3 IoCs
- Suspicious use of SendNotifyMessage 3 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/2252-0-0x0000000000170000-0x0000000000494000-memory.dmp
memory/2252-1-0x00007FFC72FE0000-0x00007FFC73AA1000-memory.dmp
memory/2252-2-0x000000001B0B0000-0x000000001B0C0000-memory.dmp
memory/2252-3-0x00007FFC72FE0000-0x00007FFC73AA1000-memory.dmp
memory/2252-4-0x000000001BF90000-0x000000001BFE0000-memory.dmp
memory/2252-5-0x000000001B0B0000-0x000000001B0C0000-memory.dmp
memory/2252-6-0x000000001C0A0000-0x000000001C152000-memory.dmp
memory/2252-9-0x000000001BFE0000-0x000000001BFF2000-memory.dmp
memory/2252-10-0x000000001C040000-0x000000001C07C000-memory.dmp