Analysis
- max time kernel
10s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
15/05/2024, 05:16
General
- Target 44ae5900e0b03963ee0a02e72f004fc1_JaffaCakes118.exe
- Size 85KB
- Sample240515-fx5mlaba96
- SHA256 c214b31584d7f10aac62a292961052fecb27885fede2efe65c7f4cc40ae6dce0
Malware Config
Signatures
- BlackNET
BlackNET is an open source remote access tool written in VB.NET.
- BlackNET payload 1 IoCs
- Contains code to disable Windows Defender 1 IoCs
A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Adds Run key to start application 2 TTPs 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 38 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 4 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\44ae5900e0b03963ee0a02e72f004fc1_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\44ae5900e0b03963ee0a02e72f004fc1_JaffaCakes118.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe"C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
WindowsUpdate.exe
memory/1196-34-0x00007FFBF7EC0000-0x00007FFBF8861000-memory.dmp
memory/1196-33-0x00007FFBF7EC0000-0x00007FFBF8861000-memory.dmp
memory/1196-32-0x00007FFBF7EC0000-0x00007FFBF8861000-memory.dmp
memory/1196-29-0x00007FFBF7EC0000-0x00007FFBF8861000-memory.dmp
memory/1196-28-0x00007FFBF7EC0000-0x00007FFBF8861000-memory.dmp
memory/1196-27-0x00007FFBF7EC0000-0x00007FFBF8861000-memory.dmp
memory/4552-5-0x00007FFBF7EC0000-0x00007FFBF8861000-memory.dmp
memory/4552-6-0x0000000000DB0000-0x0000000000DB8000-memory.dmp
memory/4552-9-0x00007FFBF7EC0000-0x00007FFBF8861000-memory.dmp
memory/4552-10-0x00007FFBF7EC0000-0x00007FFBF8861000-memory.dmp
memory/4552-11-0x00007FFBF7EC0000-0x00007FFBF8861000-memory.dmp
memory/4552-12-0x000000001F760000-0x000000001F7C2000-memory.dmp
memory/4552-7-0x000000001C180000-0x000000001C1CC000-memory.dmp
memory/4552-8-0x00007FFBF7EC0000-0x00007FFBF8861000-memory.dmp
memory/4552-0-0x00007FFBF8175000-0x00007FFBF8176000-memory.dmp
memory/4552-4-0x000000001C070000-0x000000001C10C000-memory.dmp
memory/4552-31-0x00007FFBF7EC0000-0x00007FFBF8861000-memory.dmp
memory/4552-2-0x00007FFBF7EC0000-0x00007FFBF8861000-memory.dmp
memory/4552-3-0x000000001BBA0000-0x000000001C06E000-memory.dmp
memory/4552-1-0x000000001B500000-0x000000001B5A6000-memory.dmp