Analysis
- max time kernel
12s - max time network
120s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
22/10/2024, 04:12
General
- Target 8551fb0130af2dab3e88052c73817f87829fdc554d19ba124fb484d13ddf4812N.exe
- Size 70KB
- Sample241022-esttvswgnc
- SHA256 8551fb0130af2dab3e88052c73817f87829fdc554d19ba124fb484d13ddf4812
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 57 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\8551fb0130af2dab3e88052c73817f87829fdc554d19ba124fb484d13ddf4812N.exe"C:\Users\Admin\AppData\Local\Temp\8551fb0130af2dab3e88052c73817f87829fdc554d19ba124fb484d13ddf4812N.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- 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
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
WindowsUpdate.exe
memory/1000-8-0x00007FFD40430000-0x00007FFD40DD1000-memory.dmp
memory/1000-13-0x00007FFD40430000-0x00007FFD40DD1000-memory.dmp
memory/1000-3-0x000000001BC60000-0x000000001C12E000-memory.dmp
memory/1000-4-0x000000001C1F0000-0x000000001C28C000-memory.dmp
memory/1000-5-0x00007FFD40430000-0x00007FFD40DD1000-memory.dmp
memory/1000-6-0x00000000011A0000-0x00000000011A8000-memory.dmp
memory/1000-2-0x00007FFD40430000-0x00007FFD40DD1000-memory.dmp
memory/1000-9-0x00007FFD40430000-0x00007FFD40DD1000-memory.dmp
memory/1000-7-0x000000001C350000-0x000000001C39C000-memory.dmp
memory/1000-10-0x000000001CF90000-0x000000001CFF2000-memory.dmp
memory/1000-0-0x00007FFD406E5000-0x00007FFD406E6000-memory.dmp
memory/1000-14-0x00007FFD40430000-0x00007FFD40DD1000-memory.dmp
memory/1000-1-0x000000001B6E0000-0x000000001B786000-memory.dmp
memory/1000-24-0x00007FFD40430000-0x00007FFD40DD1000-memory.dmp
memory/1000-29-0x00007FFD40430000-0x00007FFD40DD1000-memory.dmp
memory/3448-30-0x00007FFD40430000-0x00007FFD40DD1000-memory.dmp
memory/3448-31-0x00007FFD40430000-0x00007FFD40DD1000-memory.dmp
memory/3448-32-0x00007FFD40430000-0x00007FFD40DD1000-memory.dmp
memory/3448-33-0x00007FFD40430000-0x00007FFD40DD1000-memory.dmp
memory/3448-34-0x00007FFD40430000-0x00007FFD40DD1000-memory.dmp
memory/3448-35-0x00007FFD40430000-0x00007FFD40DD1000-memory.dmp
memory/3448-36-0x00007FFD40430000-0x00007FFD40DD1000-memory.dmp
memory/3448-37-0x00007FFD40430000-0x00007FFD40DD1000-memory.dmp
memory/3448-39-0x00007FFD40430000-0x00007FFD40DD1000-memory.dmp
memory/3448-40-0x00007FFD40430000-0x00007FFD40DD1000-memory.dmp
memory/3448-38-0x00007FFD40430000-0x00007FFD40DD1000-memory.dmp
memory/3448-41-0x00007FFD40430000-0x00007FFD40DD1000-memory.dmp
memory/3448-42-0x00007FFD40430000-0x00007FFD40DD1000-memory.dmp
memory/3448-43-0x00007FFD40430000-0x00007FFD40DD1000-memory.dmp
memory/3448-44-0x00007FFD40430000-0x00007FFD40DD1000-memory.dmp
memory/3448-45-0x00007FFD40430000-0x00007FFD40DD1000-memory.dmp
memory/3448-46-0x00007FFD40430000-0x00007FFD40DD1000-memory.dmp
memory/3448-47-0x00007FFD40430000-0x00007FFD40DD1000-memory.dmp