Analysis
- max time kernel
147s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
13/11/2022, 22:49
General
- Target e3ad04269f7d5b6be4a0bbdb9d19f0b40bddfce4bc56697596e329903d1bedb3.exe
- Size 1.2MB
- Sample221113-2r645ade27
- SHA256 e3ad04269f7d5b6be4a0bbdb9d19f0b40bddfce4bc56697596e329903d1bedb3
Malware Config
Extracted
-
blacknet
-
v3.5.1 Public
-
HacKed
-
http://noctorships.ga/BlackNET/Panel/
-
BN[BNcJaNRq-7658837]
-
antivm
true
-
elevate_uac
false
-
install_name
WindowsUpdate.exe
-
splitter
|BN|
-
start_name
a4f5fc179540a0b155d91b489e6811e2
-
startup
false
-
usb_spread
false
Signatures
- BlackNET
BlackNET is an open source remote access tool written in VB.NET.
- BlackNET payload 2 IoCs
- Contains code to disable Windows Defender 2 IoCs
A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
- Executes dropped EXE 2 IoCs
- Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 21 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\e3ad04269f7d5b6be4a0bbdb9d19f0b40bddfce4bc56697596e329903d1bedb3.exe"C:\Users\Admin\AppData\Local\Temp\e3ad04269f7d5b6be4a0bbdb9d19f0b40bddfce4bc56697596e329903d1bedb3.exe"1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\tmp6E5A.tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp6E5A.tmp.exe"2⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\svshost.exe"C:\Users\Admin\AppData\Local\Temp\svshost.exe"3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
svshost.exe
svshost.exe
tmp6E5A.tmp.exe
tmp6E5A.tmp.exe
memory/4684-132-0x00007FFAB7B40000-0x00007FFAB8576000-memory.dmp
memory/4752-144-0x0000000005470000-0x0000000005502000-memory.dmp
memory/4752-141-0x0000000000920000-0x0000000000984000-memory.dmp
memory/4752-142-0x0000000005330000-0x00000000053CC000-memory.dmp
memory/4752-143-0x0000000005980000-0x0000000005F24000-memory.dmp
memory/4752-145-0x00000000053D0000-0x00000000053DA000-memory.dmp
memory/4752-146-0x0000000005660000-0x00000000056B6000-memory.dmp
memory/4956-137-0x0000000000DCA000-0x0000000000DCF000-memory.dmp
memory/4956-136-0x00007FFAB7B40000-0x00007FFAB8576000-memory.dmp
memory/4956-147-0x0000000000DCA000-0x0000000000DCF000-memory.dmp