Analysis
- max time kernel
141s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20230831-en - resource tags
- submitted
07/09/2023, 14:15
General
- Target decode_d8a9e3c567ec108d8673506487477f4bf1cf3e43a11c1c7b11dd808e7d90229d.exe
- Size 63KB
- Sample230907-rkkmfaae28
- SHA256 5f134bb1a56316bc3ab22c1a22daa38335b93569fdb327a4e252c7dd6594d494
Malware Config
Extracted
-
asyncrat
-
| Edit 3LOSH RAT
-
Test
-
actualizaciondedatosgrupoaval.net:8887
-
AsyncMutex_6SI8OkPnk
-
delay
3
-
install
false
-
install_folder
%AppData%
Signatures
- AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
- Async RAT payload 1 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Delays execution with timeout.exe 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\decode_d8a9e3c567ec108d8673506487477f4bf1cf3e43a11c1c7b11dd808e7d90229d.exe"C:\Users\Admin\AppData\Local\Temp\decode_d8a9e3c567ec108d8673506487477f4bf1cf3e43a11c1c7b11dd808e7d90229d.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpB126.tmp.bat""2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\timeout.exetimeout 33⤵
- Delays execution with timeout.exe
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
tmpB126.tmp.bat
memory/2920-0-0x0000000000080000-0x0000000000096000-memory.dmp
memory/2920-1-0x00000000748F0000-0x00000000750A0000-memory.dmp
memory/2920-2-0x00000000024A0000-0x00000000024B0000-memory.dmp
memory/2920-3-0x0000000005120000-0x00000000051BC000-memory.dmp
memory/2920-4-0x0000000005770000-0x0000000005D14000-memory.dmp
memory/2920-5-0x0000000005230000-0x0000000005296000-memory.dmp
memory/2920-6-0x00000000748F0000-0x00000000750A0000-memory.dmp
memory/2920-7-0x00000000024A0000-0x00000000024B0000-memory.dmp
memory/2920-8-0x0000000005EA0000-0x0000000005F16000-memory.dmp
memory/2920-9-0x0000000005E60000-0x0000000005E7E000-memory.dmp
memory/2920-13-0x00000000748F0000-0x00000000750A0000-memory.dmp