Analysis
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max time kernel
60s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
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submitted
04-03-2024 02:11
General
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Target
662344d80ecad59d7c9d4e0ad6864f8ccbbdf1a73321bc3ffeb24e5cec3e1bf3.exe
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Size
493KB
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MD5
ad5d8a274eaff455047d801ee9b6231f
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SHA1
1a43eb1ae77914cb58e6cffc8a4e8a1eebfee7d2
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SHA256
662344d80ecad59d7c9d4e0ad6864f8ccbbdf1a73321bc3ffeb24e5cec3e1bf3
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SHA512
ceb178dbb8e913c489de2eb7cb8c3d3f16b574934155a8fe6d73ec6235e40bb76fdffb34ae33a8e38abd912e3df5efd624104db9693e929e4bd0087b2b266932
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SSDEEP
12288:uxjrr7F5qfMs8WdcOX+t4c08no9IaJnv+N6G/wWEh59ma4:uxLsMs8WdcMx8+I+TDV4
Malware Config
Extracted
blacknet
Windows Update
wOzx3g1DVutJaIF8JkCiLDWWDUVaGVAFT9MNNbf3GHejuL8mYQHtmLByJVduHMIIMCJOTkByRDSvMbknVYDMjFMd33ucCNGRd6rsd55Kjfz5N8toWqPtUAUWFp2VPBqwDphjXZsEuRw6KPvEHxNrRtmmNF3TSPIX5em2yZySCQTum749uJG4nmFWEHI/cH1NCAx4fFkBSOcgGykeOVQl1nGRgAHWZfv9g9qNaMeeu53b56HQWR/mZ6mTILTeO979h0iF42Y1WsHlP1Cd9xLI0jeNeBHY9FCS6EZPmLXKu/X9q8n26O7UQt6xg0ujFGbbUZ8glKZ26j6atQFXHOQGag==
BN[fEVvWhbt-6079003]
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antivm
true
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elevate_uac
true
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install_name
WindowsUpdate.exe
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splitter
|BN|
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start_name
35dcbc7eb742dd4f1edfbccf7826c724
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startup
true
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usb_spread
true
Signatures
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BlackNET
BlackNET is an open source remote access tool written in VB.NET.
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BlackNET payload 1 IoCs
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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.
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Modifies Windows Defender Real-time Protection settings 3 TTPs 4 IoCs
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Detects executables containing artifacts associated with disabling Widnows Defender 1 IoCs
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Detects executables embedding registry key / value combination indicative of disabling Windows Defender features 1 IoCs
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Executes dropped EXE 5 IoCs
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Loads dropped DLL 7 IoCs
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Windows security modification 2 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 2 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious use of AdjustPrivilegeToken 3 IoCs
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Suspicious use of WriteProcessMemory 23 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\662344d80ecad59d7c9d4e0ad6864f8ccbbdf1a73321bc3ffeb24e5cec3e1bf3.exe"C:\Users\Admin\AppData\Local\Temp\662344d80ecad59d7c9d4e0ad6864f8ccbbdf1a73321bc3ffeb24e5cec3e1bf3.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Updater.exe"C:\Users\Admin\AppData\Roaming\Updater.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Adobe Photoshop CS12.exe"C:\Users\Admin\AppData\Roaming\Adobe Photoshop CS12.exe"3⤵
- Modifies Windows Defender Real-time Protection settings
- Executes dropped EXE
- Windows security modification
- 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 -verbose4⤵
- Suspicious use of AdjustPrivilegeToken
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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⤵
- Executes dropped EXE
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" Get-MpPreference -verbose5⤵
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C:\Users\Admin\AppData\Roaming\svchosts.exe"C:\Users\Admin\AppData\Roaming\svchosts.exe"4⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Adobe Photoshop CS12.exe"C:\Users\Admin\AppData\Roaming\Adobe Photoshop CS12.exe"5⤵
- Executes dropped EXE
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" Get-MpPreference -verbose6⤵
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C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe"C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe"6⤵
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C:\Users\Admin\AppData\Roaming\Adobe Photoshop CS12.exe"C:\Users\Admin\AppData\Roaming\Adobe Photoshop CS12.exe"5⤵
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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
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Filesize
2KB
MD58de91c4f830956990012f9fd1269e490
SHA15396852c5a98d586d3970638bebf52ac4d7da6b9
SHA2564b1f314ed0d2dd0aedd922297f2b16cce1d5716a24469b72a9e17ea43bc40433
SHA5124c0ef84683613edb6196a43e2da73c58203e080cdee1c4119ad6b3823db137fec0628eb7fa8f34a7da93aa142a13b001168959d59cb425ae858372b5d7f2d555
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Filesize
7KB
MD51a8c7c8ae36c09399c465ed27d37ec87
SHA1ad45fa4fc346973d360d8c3a1b281b7ebc88bdd9
SHA256d84d2f60ea8242952d1c36d2f46c51cc40eb484003a37656c44847cbc6755fb9
SHA51291cbf42c0ee257185b70355d58818babce42900a1827aa08cd609a35ec1b1af6b123aee2e6aae4dc813cfd6eccd99eb44aceb514ab7b77b2a160cd0933b3e0ae
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Filesize
18KB
MD5d133d370c3858c9811e70f95d554d2c6
SHA1bb09b1253ce571a49b76951283883a3499588295
SHA25687a1711030512dd414bcbab0659a2b51c0c16505bd8a068a282a1cc2c9fdf93b
SHA512db4d41fca43e496b2b0d8d47d936a9ce204e3b6c4c669a8a9810362776a977b5337359b843fcd1d20004455d2c91f9790b3accb5352f4e55ec53c7e5d359d778
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Filesize
195KB
MD5d867a6939e03ff1ccf63605dddea632e
SHA1b04f4689ac1ecd317387b28fad290f15a68878d9
SHA256eecb4035c620f07749f4627e6c7243dd4053b4918c6d76e236374900d0dace3b
SHA51228a848f5411c8af9e046ff37507f96da84790bdaf140fbae1526ce980cb0142d47f957de3a3f1a36a6a12c6e32c28f6706f06d770e4948a6ae3f74c3c628fba2
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Filesize
329KB
MD5317abf62a372c7d88088dbbfea227449
SHA1f193753fca12f4576eec8d8d82796e13da54fd56
SHA2566b0934e044667b39e0826d98239c96b4978fc73f2e12bab9cefa13e87cd3b2fc
SHA512628675c573d713fda4a18548a5160aaed44ac719d07d570ceff856f425b5181b1f552c34bfb0be9bddfa14672c323923cb0c6c496a1a8608ce8f4215fb6ab8d8
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Filesize
512KB
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Filesize
9.6MB
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Filesize
512KB
-
Filesize
9.6MB
-
Filesize
512KB
-
Filesize
512KB
-
Filesize
9.6MB
-
Filesize
9.6MB
-
Filesize
512KB
-
Filesize
9.6MB
-
Filesize
512KB
-
Filesize
9.6MB
-
Filesize
512KB
-
Filesize
9.6MB
-
Filesize
1024KB
-
Filesize
512KB
-
Filesize
512KB
-
Filesize
9.6MB
-
Filesize
9.6MB
-
Filesize
1024KB
-
Filesize
1024KB
-
Filesize
512KB
-
Filesize
9.6MB
-
Filesize
1024KB
-
Filesize
512KB
-
Filesize
512KB
-
Filesize
1024KB
-
Filesize
1024KB
-
Filesize
512KB
-
Filesize
512KB
-
Filesize
1024KB
-
Filesize
1024KB
-
Filesize
512KB
-
Filesize
1024KB
-
Filesize
512KB
-
Filesize
1024KB
-
Filesize
512KB
-
Filesize
1024KB
-
Filesize
1024KB
-
Filesize
9.6MB
-
Filesize
1024KB
-
Filesize
1024KB
-
Filesize
2.0MB
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Filesize
2.0MB
-
Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
-
Filesize
2.0MB
-
Filesize
2.0MB
-
Filesize
1024KB
-
Filesize
512KB
-
Filesize
512KB
-
Filesize
512KB
-
Filesize
2.9MB
-
Filesize
412KB
-
Filesize
9.6MB
-
Filesize
512KB
-
Filesize
512KB
-
Filesize
9.6MB
-
Filesize
32KB
-
Filesize
512KB
-
Filesize
9.6MB
-
Filesize
512KB
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Filesize
9.6MB