Malware Analysis Report

2025-04-03 09:09

Sample ID 250314-w2mkkswxex
Target ws4.exe
SHA256 cb831ca08798bcea49874f81a7fe08368c057bd3bf9d1bfba6d7bb92fa61c4c1
Tags
babylonrat discovery persistence trojan upx
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

cb831ca08798bcea49874f81a7fe08368c057bd3bf9d1bfba6d7bb92fa61c4c1

Threat Level: Known bad

The file ws4.exe was found to be: Known bad.

Malicious Activity Summary

babylonrat discovery persistence trojan upx

Babylon RAT

Babylonrat family

Loads dropped DLL

Executes dropped EXE

Adds Run key to start application

UPX packed file

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of SetWindowsHookEx

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-03-14 18:25

Signatures

Babylonrat family

babylonrat

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Analysis: behavioral2

Detonation Overview

Submitted

2025-03-14 18:25

Reported

2025-03-14 18:27

Platform

win10v2004-20250314-en

Max time kernel

148s

Max time network

104s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ws4.exe"

Signatures

Babylon RAT

trojan babylonrat

Babylonrat family

babylonrat

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\Babylon RAT\client.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Babylon RAT = "C:\\ProgramData\\Babylon RAT\\client.exe" C:\Users\Admin\AppData\Local\Temp\ws4.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Babylon RAT = "C:\\ProgramData\\Babylon RAT\\client.exe" C:\ProgramData\Babylon RAT\client.exe N/A

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\ws4.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\ProgramData\Babylon RAT\client.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\ProgramData\Babylon RAT\client.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ws4.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ws4.exe N/A
Token: SeTcbPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ws4.exe N/A
Token: SeShutdownPrivilege N/A C:\ProgramData\Babylon RAT\client.exe N/A
Token: SeDebugPrivilege N/A C:\ProgramData\Babylon RAT\client.exe N/A
Token: SeTcbPrivilege N/A C:\ProgramData\Babylon RAT\client.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\ProgramData\Babylon RAT\client.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1552 wrote to memory of 1712 N/A C:\Users\Admin\AppData\Local\Temp\ws4.exe C:\ProgramData\Babylon RAT\client.exe
PID 1552 wrote to memory of 1712 N/A C:\Users\Admin\AppData\Local\Temp\ws4.exe C:\ProgramData\Babylon RAT\client.exe
PID 1552 wrote to memory of 1712 N/A C:\Users\Admin\AppData\Local\Temp\ws4.exe C:\ProgramData\Babylon RAT\client.exe

Processes

C:\Users\Admin\AppData\Local\Temp\ws4.exe

"C:\Users\Admin\AppData\Local\Temp\ws4.exe"

C:\ProgramData\Babylon RAT\client.exe

"C:\ProgramData\Babylon RAT\client.exe"

Network

Files

memory/1552-0-0x0000000000C90000-0x0000000000D59000-memory.dmp

C:\ProgramData\Babylon RAT\client.exe

MD5 474885a0b7d7ce32f93b1b141f716a6b
SHA1 d3b796ebc8b1121a80972d6d5bb3bcfecefce3ef
SHA256 cb831ca08798bcea49874f81a7fe08368c057bd3bf9d1bfba6d7bb92fa61c4c1
SHA512 6a05d281970222ebb7868ba0653ac64ef3973cd62165da78404cb5a7589b977be0a01b4bd5c3d7e4d2210fefef1e4de340741e912bf8532cb7bd2a7184bb371b

memory/1712-5-0x00000000001E0000-0x00000000002A9000-memory.dmp

memory/1552-7-0x0000000000C90000-0x0000000000D59000-memory.dmp

memory/1712-8-0x00000000001E0000-0x00000000002A9000-memory.dmp

memory/1712-9-0x00000000001E0000-0x00000000002A9000-memory.dmp

memory/1712-10-0x00000000001E0000-0x00000000002A9000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2025-03-14 18:25

Reported

2025-03-14 18:27

Platform

win7-20240903-en

Max time kernel

145s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ws4.exe"

Signatures

Babylon RAT

trojan babylonrat

Babylonrat family

babylonrat

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\Babylon RAT\client.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\ws4.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Babylon RAT = "C:\\ProgramData\\Babylon RAT\\client.exe" C:\Users\Admin\AppData\Local\Temp\ws4.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Babylon RAT = "C:\\ProgramData\\Babylon RAT\\client.exe" C:\ProgramData\Babylon RAT\client.exe N/A

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\ws4.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\ProgramData\Babylon RAT\client.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\ProgramData\Babylon RAT\client.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ws4.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ws4.exe N/A
Token: SeTcbPrivilege N/A C:\Users\Admin\AppData\Local\Temp\ws4.exe N/A
Token: SeShutdownPrivilege N/A C:\ProgramData\Babylon RAT\client.exe N/A
Token: SeDebugPrivilege N/A C:\ProgramData\Babylon RAT\client.exe N/A
Token: SeTcbPrivilege N/A C:\ProgramData\Babylon RAT\client.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\ProgramData\Babylon RAT\client.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\ws4.exe

"C:\Users\Admin\AppData\Local\Temp\ws4.exe"

C:\ProgramData\Babylon RAT\client.exe

"C:\ProgramData\Babylon RAT\client.exe"

Network

N/A

Files

memory/2940-0-0x0000000000E50000-0x0000000000F19000-memory.dmp

\ProgramData\Babylon RAT\client.exe

MD5 474885a0b7d7ce32f93b1b141f716a6b
SHA1 d3b796ebc8b1121a80972d6d5bb3bcfecefce3ef
SHA256 cb831ca08798bcea49874f81a7fe08368c057bd3bf9d1bfba6d7bb92fa61c4c1
SHA512 6a05d281970222ebb7868ba0653ac64ef3973cd62165da78404cb5a7589b977be0a01b4bd5c3d7e4d2210fefef1e4de340741e912bf8532cb7bd2a7184bb371b

memory/2940-4-0x0000000000400000-0x00000000004C9000-memory.dmp

memory/2940-7-0x0000000000E50000-0x0000000000F19000-memory.dmp

memory/2820-9-0x0000000000940000-0x0000000000A09000-memory.dmp

memory/2820-11-0x0000000000940000-0x0000000000A09000-memory.dmp

memory/2820-12-0x0000000000940000-0x0000000000A09000-memory.dmp