Analysis
- max time kernel
93s - max time network
132s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
29/06/2024, 01:51
General
- Target e2cc914a1df535f2cf88007a518a9990afe5ccdb9cf1262e550e2ce8cc9c7eb0.exe
- Size 916KB
- Sample240629-b93asa1fml
- SHA256 e2cc914a1df535f2cf88007a518a9990afe5ccdb9cf1262e550e2ce8cc9c7eb0
Malware Config
Extracted
-
quasar
-
2.8.0.1
-
Hotels
-
45.40.96.164:5552
-
4zqoNUTZKMvnLHkoUD
-
encryption_key
DrELkLp18Pk08e6KWRUc
-
install_name
Registry.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Hotels Client Startup
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 1 IoCs
- Detects Windows exceutables bypassing UAC using CMSTP utility, command line and INF 1 IoCs
- Detects Windows executables referencing non-Windows User-Agents 1 IoCs
- Detects executables containing URLs to raw contents of a Github gist 1 IoCs
- Detects executables embedding command execution via IExecuteCommand COM object 1 IoCs
- Detects executables embedding registry key / value combination indicative of disabling Windows Defender features 1 IoCs
- Detects file containing reversed ASEP Autorun registry keys 1 IoCs
- detects Windows exceutables potentially bypassing UAC using eventvwr.exe 1 IoCs
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\e2cc914a1df535f2cf88007a518a9990afe5ccdb9cf1262e550e2ce8cc9c7eb0.exe"C:\Users\Admin\AppData\Local\Temp\e2cc914a1df535f2cf88007a518a9990afe5ccdb9cf1262e550e2ce8cc9c7eb0.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
memory/668-0-0x000000007482E000-0x000000007482F000-memory.dmp
memory/668-1-0x0000000000F90000-0x000000000107C000-memory.dmp
memory/668-2-0x0000000005FB0000-0x0000000006554000-memory.dmp
memory/668-3-0x0000000005AA0000-0x0000000005B32000-memory.dmp
memory/668-4-0x0000000074820000-0x0000000074FD0000-memory.dmp
memory/668-5-0x0000000005B40000-0x0000000005BA6000-memory.dmp
memory/668-6-0x00000000068A0000-0x00000000068B2000-memory.dmp
memory/668-7-0x0000000006DE0000-0x0000000006E1C000-memory.dmp
memory/668-8-0x0000000007520000-0x000000000752A000-memory.dmp
memory/668-9-0x000000007482E000-0x000000007482F000-memory.dmp
memory/668-10-0x0000000074820000-0x0000000074FD0000-memory.dmp