Analysis
- max time kernel
17s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
05/03/2024, 02:54
General
- Target eecb4035c620f07749f4627e6c7243dd4053b4918c6d76e236374900d0dace3b.exe
- Size 195KB
- Sample240305-debkpade92
- SHA256 eecb4035c620f07749f4627e6c7243dd4053b4918c6d76e236374900d0dace3b
Malware Config
Extracted
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blacknet
-
Windows Update
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wOzx3g1DVutJaIF8JkCiLDWWDUVaGVAFT9MNNbf3GHejuL8mYQHtmLByJVduHMIIMCJOTkByRDSvMbknVYDMjFMd33ucCNGRd6rsd55Kjfz5N8toWqPtUAUWFp2VPBqwDphjXZsEuRw6KPvEHxNrRtmmNF3TSPIX5em2yZySCQTum749uJG4nmFWEHI/cH1NCAx4fFkBSOcgGykeOVQl1nGRgAHWZfv9g9qNaMeeu53b56HQWR/mZ6mTILTeO979h0iF42Y1WsHlP1Cd9xLI0jeNeBHY9FCS6EZPmLXKu/X9q8n26O7UQt6xg0ujFGbbUZ8glKZ26j6atQFXHOQGag==
-
BN[fEVvWhbt-6079003]
-
antivm
true
-
elevate_uac
true
-
install_name
WindowsUpdate.exe
-
splitter
|BN|
-
start_name
35dcbc7eb742dd4f1edfbccf7826c724
-
startup
true
-
usb_spread
true
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.
- Modifies Windows Defender Real-time Protection settings 3 TTPs 4 IoCs
- Detects executables containing artifacts associated with disabling Widnows Defender 1 IoCs
- Detects executables embedding registry key / value combination indicative of disabling Windows Defender features 1 IoCs
- Adds Run key to start application 2 TTPs 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 28 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\eecb4035c620f07749f4627e6c7243dd4053b4918c6d76e236374900d0dace3b.exe"C:\Users\Admin\AppData\Local\Temp\eecb4035c620f07749f4627e6c7243dd4053b4918c6d76e236374900d0dace3b.exe"1⤵
- Modifies Windows Defender Real-time Protection settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" Get-MpPreference -verbose2⤵
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C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe"C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe"2⤵
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" Get-MpPreference -verbose3⤵
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-
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C:\Users\Admin\AppData\Local\Temp\svchosts.exe"C:\Users\Admin\AppData\Local\Temp\svchosts.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\eecb4035c620f07749f4627e6c7243dd4053b4918c6d76e236374900d0dace3b.exe"C:\Users\Admin\AppData\Local\Temp\eecb4035c620f07749f4627e6c7243dd4053b4918c6d76e236374900d0dace3b.exe"3⤵
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" Get-MpPreference -verbose4⤵
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C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe"C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe"4⤵
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-
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Replay Monitor
Loading Replay Monitor...
Downloads
eecb4035c620f07749f4627e6c7243dd4053b4918c6d76e236374900d0dace3b.exe.log
powershell.exe.log
StartupProfileData-NonInteractive
StartupProfileData-NonInteractive
WindowsUpdate.exe
__PSScriptPolicyTest_0hdys05l.3cb.ps1
svchosts.exe
ea1d1c2d6265b2ff9b4141c280882ecd_d1f2fdfb-e063-43be-88aa-b9b0326295b4
memory/1096-205-0x000001567C820000-0x000001567C830000-memory.dmp
memory/1096-280-0x000001567C820000-0x000001567C830000-memory.dmp
memory/1096-174-0x00007FFBEB0B0000-0x00007FFBEBB71000-memory.dmp
memory/1796-988-0x00007FFBEEDB0000-0x00007FFBEF751000-memory.dmp
memory/1796-739-0x0000000001020000-0x0000000001030000-memory.dmp
memory/1796-1242-0x0000000001020000-0x0000000001030000-memory.dmp
memory/1796-814-0x00007FFBEEDB0000-0x00007FFBEF751000-memory.dmp
memory/3156-918-0x0000019DAF6F0000-0x0000019DAF700000-memory.dmp
memory/3156-867-0x0000019DAF6F0000-0x0000019DAF700000-memory.dmp
memory/3156-693-0x00007FFBEB0B0000-0x00007FFBEBB71000-memory.dmp
memory/3156-2880-0x0000019DAF6F0000-0x0000019DAF700000-memory.dmp
memory/3236-81-0x00007FFBEB0B0000-0x00007FFBEBB71000-memory.dmp
memory/3236-61-0x000001B726D70000-0x000001B726D80000-memory.dmp
memory/3236-73-0x000001B726DB0000-0x000001B726DD2000-memory.dmp
memory/3236-63-0x00007FFBEB0B0000-0x00007FFBEBB71000-memory.dmp
memory/3236-62-0x000001B726D70000-0x000001B726D80000-memory.dmp
memory/3936-86-0x00007FFBEEDB0000-0x00007FFBEF751000-memory.dmp
memory/3936-1163-0x00007FFBEEDB0000-0x00007FFBEF751000-memory.dmp
memory/3936-6472-0x000000001CA10000-0x000000001CB10000-memory.dmp
memory/3936-4914-0x000000001CA10000-0x000000001CB10000-memory.dmp
memory/3936-3777-0x000000001CA10000-0x000000001CB10000-memory.dmp
memory/3936-2823-0x0000000001000000-0x0000000001010000-memory.dmp
memory/3936-2206-0x000000001CA10000-0x000000001CB10000-memory.dmp
memory/3936-2205-0x0000000001000000-0x0000000001010000-memory.dmp
memory/3936-1164-0x0000000001000000-0x0000000001010000-memory.dmp
memory/3936-1241-0x00007FFBEEDB0000-0x00007FFBEF751000-memory.dmp
memory/3936-84-0x00007FFBEEDB0000-0x00007FFBEF751000-memory.dmp
memory/3936-85-0x0000000001000000-0x0000000001010000-memory.dmp
memory/3936-539-0x0000000001000000-0x0000000001010000-memory.dmp
memory/3936-87-0x0000000001000000-0x0000000001010000-memory.dmp
memory/3936-492-0x0000000001000000-0x0000000001010000-memory.dmp
memory/3936-449-0x0000000001000000-0x0000000001010000-memory.dmp
memory/3936-398-0x0000000001000000-0x0000000001010000-memory.dmp
memory/4112-919-0x0000000000BF0000-0x0000000000C00000-memory.dmp
memory/4112-97-0x00007FFBEEDB0000-0x00007FFBEF751000-memory.dmp
memory/4112-56-0x0000000000BF0000-0x0000000000C00000-memory.dmp
memory/4112-57-0x00007FFBEEDB0000-0x00007FFBEF751000-memory.dmp
memory/4112-74-0x0000000000BF0000-0x0000000000C00000-memory.dmp
memory/4112-60-0x00007FFBEEDB0000-0x00007FFBEF751000-memory.dmp
memory/4112-99-0x00007FFBEEDB0000-0x00007FFBEF751000-memory.dmp
memory/4764-13-0x000000001FBE0000-0x000000001FC42000-memory.dmp
memory/4764-3-0x00007FFBEEDB0000-0x00007FFBEF751000-memory.dmp
memory/4764-0-0x000000001BC80000-0x000000001BD26000-memory.dmp
memory/4764-14-0x00007FFBEEDB0000-0x00007FFBEF751000-memory.dmp
memory/4764-1-0x00007FFBEEDB0000-0x00007FFBEF751000-memory.dmp
memory/4764-8-0x0000000001550000-0x0000000001560000-memory.dmp
memory/4764-7-0x000000001C930000-0x000000001C97C000-memory.dmp
memory/4764-36-0x0000000001550000-0x0000000001560000-memory.dmp
memory/4764-5-0x000000001C7D0000-0x000000001C86C000-memory.dmp
memory/4764-21-0x0000000001550000-0x0000000001560000-memory.dmp
memory/4764-58-0x0000000001550000-0x0000000001560000-memory.dmp
memory/4764-6-0x0000000001670000-0x0000000001678000-memory.dmp
memory/4764-59-0x00007FFBEEDB0000-0x00007FFBEF751000-memory.dmp
memory/4764-4-0x000000001C200000-0x000000001C6CE000-memory.dmp
memory/4764-22-0x0000000001550000-0x0000000001560000-memory.dmp
memory/4764-2-0x0000000001550000-0x0000000001560000-memory.dmp
memory/4764-23-0x00007FFBEEDB0000-0x00007FFBEF751000-memory.dmp
memory/4980-92-0x00007FFBEEDB0000-0x00007FFBEF751000-memory.dmp
memory/4980-52-0x00007FFBEEDB0000-0x00007FFBEF751000-memory.dmp
memory/4980-50-0x0000000000D90000-0x0000000000DA0000-memory.dmp
memory/4980-42-0x00007FFBEEDB0000-0x00007FFBEF751000-memory.dmp
memory/4980-98-0x0000000000D90000-0x0000000000DA0000-memory.dmp
memory/4980-6465-0x0000000000D90000-0x0000000000DA0000-memory.dmp
memory/4980-323-0x0000000000D90000-0x0000000000DA0000-memory.dmp