Analysis
- max time kernel
88s - max time network
96s - platform
windows10-1703_x64 - resource
win10-20240221-en - resource tags
- submitted
24/03/2024, 16:47
General
- Target AuthClient.exe
- Size 45KB
- Sample240324-vaxe2age6s
- SHA256 13f183db5e4f7cbdef0673b81f35e99b712c08c6c545152ab0f8ee1ac140a8b5
Malware Config
Extracted
-
xenorat
-
Vallithebest-32755.portmap.host
-
Xeno_rat_nd8912d
-
delay
2000
-
install_path
temp
-
port
32755
-
startup_name
AuthClient
Signatures
- XenorRat
XenorRat is a remote access trojan written in C#.
- Executes dropped EXE 1 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\AuthClient.exe"C:\Users\Admin\AppData\Local\Temp\AuthClient.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\XenoManager\AuthClient.exe"C:\Users\Admin\AppData\Local\Temp\XenoManager\AuthClient.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /Create /TN "AuthClient" /XML "C:\Users\Admin\AppData\Local\Temp\tmpABEF.tmp" /F3⤵
- Creates scheduled task(s)
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
AuthClient.exe.log
AuthClient.exe
tmpABEF.tmp
memory/2432-16-0x0000000004F00000-0x0000000004F10000-memory.dmp
memory/2432-18-0x00000000063C0000-0x0000000006582000-memory.dmp
memory/2432-10-0x0000000073AE0000-0x00000000741CE000-memory.dmp
memory/2432-11-0x0000000004F00000-0x0000000004F10000-memory.dmp
memory/2432-43-0x0000000000C20000-0x0000000000C2A000-memory.dmp
memory/2432-14-0x0000000005A80000-0x0000000005AE6000-memory.dmp
memory/2432-15-0x0000000073AE0000-0x00000000741CE000-memory.dmp
memory/2432-42-0x00000000069F0000-0x00000000069FA000-memory.dmp
memory/2432-17-0x0000000005F30000-0x000000000602A000-memory.dmp
memory/2432-41-0x0000000006A00000-0x0000000006A92000-memory.dmp
memory/2432-19-0x0000000005990000-0x00000000059E0000-memory.dmp
memory/2432-20-0x00000000061F0000-0x0000000006266000-memory.dmp
memory/2432-21-0x0000000006AC0000-0x0000000006FEC000-memory.dmp
memory/2432-22-0x00000000063A0000-0x00000000063BE000-memory.dmp
memory/2432-24-0x0000000006650000-0x00000000066EC000-memory.dmp
memory/2432-39-0x0000000006280000-0x000000000628C000-memory.dmp
memory/2432-40-0x00000000074F0000-0x00000000079EE000-memory.dmp
memory/4488-9-0x0000000073AE0000-0x00000000741CE000-memory.dmp
memory/4488-0-0x0000000000590000-0x00000000005A2000-memory.dmp
memory/4488-1-0x0000000073AE0000-0x00000000741CE000-memory.dmp