Analysis
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max time kernel
62s -
max time network
132s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
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submitted
04-03-2024 12:31
General
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Target
D867A6939E03FF1CCF63605DDDEA632E.exe
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Size
195KB
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MD5
d867a6939e03ff1ccf63605dddea632e
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SHA1
b04f4689ac1ecd317387b28fad290f15a68878d9
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SHA256
eecb4035c620f07749f4627e6c7243dd4053b4918c6d76e236374900d0dace3b
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SHA512
28a848f5411c8af9e046ff37507f96da84790bdaf140fbae1526ce980cb0142d47f957de3a3f1a36a6a12c6e32c28f6706f06d770e4948a6ae3f74c3c628fba2
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SSDEEP
1536:eZuhD5z28TC2PBttWjm38hPMsCoTgbSUPH4Lksi9WXU+pOk+G8wb/APcz+tBvqtu:7pmjm38QegbSKHanO1wbClvmYlVfm+
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 2 IoCs
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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.
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Modifies Windows Defender Real-time Protection settings 3 TTPs 4 IoCs
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Executes dropped EXE 3 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 12 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\D867A6939E03FF1CCF63605DDDEA632E.exe"C:\Users\Admin\AppData\Local\Temp\D867A6939E03FF1CCF63605DDDEA632E.exe"1⤵
- Modifies Windows Defender Real-time Protection settings
- 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 -verbose2⤵
- 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"2⤵
- Executes dropped EXE
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" Get-MpPreference -verbose3⤵
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C:\Users\Admin\AppData\Local\Temp\svchosts.exe"C:\Users\Admin\AppData\Local\Temp\svchosts.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\D867A6939E03FF1CCF63605DDDEA632E.exe"C:\Users\Admin\AppData\Local\Temp\D867A6939E03FF1CCF63605DDDEA632E.exe"3⤵
- Executes dropped EXE
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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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C:\Users\Admin\AppData\Local\Temp\D867A6939E03FF1CCF63605DDDEA632E.exe"C:\Users\Admin\AppData\Local\Temp\D867A6939E03FF1CCF63605DDDEA632E.exe"3⤵
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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
64KB
MD5beec760efbb05e5dbefe82e3ac942c37
SHA185b12f4a92bc53e8b9a648be61c9a56ee623671d
SHA256e2038584d6fa8292a224e6c45967068035b47926cbdaedb1c5c26ccdd8854146
SHA51277dbd19dd3777ace059459b3ea33445719b8c45a6bb06ffb1b9c02facda0b91ac51e3c8c922db173cc3e4fb417eaadcec05b00912b7c62e8a4fb6ea1d1c580a6
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Filesize
195KB
MD5d867a6939e03ff1ccf63605dddea632e
SHA1b04f4689ac1ecd317387b28fad290f15a68878d9
SHA256eecb4035c620f07749f4627e6c7243dd4053b4918c6d76e236374900d0dace3b
SHA51228a848f5411c8af9e046ff37507f96da84790bdaf140fbae1526ce980cb0142d47f957de3a3f1a36a6a12c6e32c28f6706f06d770e4948a6ae3f74c3c628fba2
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Filesize
18KB
MD5d133d370c3858c9811e70f95d554d2c6
SHA1bb09b1253ce571a49b76951283883a3499588295
SHA25687a1711030512dd414bcbab0659a2b51c0c16505bd8a068a282a1cc2c9fdf93b
SHA512db4d41fca43e496b2b0d8d47d936a9ce204e3b6c4c669a8a9810362776a977b5337359b843fcd1d20004455d2c91f9790b3accb5352f4e55ec53c7e5d359d778
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Filesize
2KB
MD58de91c4f830956990012f9fd1269e490
SHA15396852c5a98d586d3970638bebf52ac4d7da6b9
SHA2564b1f314ed0d2dd0aedd922297f2b16cce1d5716a24469b72a9e17ea43bc40433
SHA5124c0ef84683613edb6196a43e2da73c58203e080cdee1c4119ad6b3823db137fec0628eb7fa8f34a7da93aa142a13b001168959d59cb425ae858372b5d7f2d555
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Filesize
7KB
MD543d338ffe5b05ab2cdc0df71732904bb
SHA14bf6e8172189412a911edf8c2ea5c466339c7159
SHA256dfa2869231238827fdee9f60ee94d186e26e73f6e760b27b857c86e036351b2a
SHA512b64c319475bd121bc896ecbe200174fadba90d3d46507ed8b068b242ec31d60678f560d6f7ab025888f5a2cc3f6af380f655c7a63221a9c7848acf1a13ecbda9
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Filesize
9.6MB
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Filesize
512KB
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Filesize
9.6MB
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Filesize
2.9MB
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Filesize
32KB
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Filesize
12KB
-
Filesize
512KB
-
Filesize
512KB
-
Filesize
9.6MB
-
Filesize
512KB
-
Filesize
9.6MB
-
Filesize
512KB
-
Filesize
9.6MB
-
Filesize
9.6MB
-
Filesize
512KB
-
Filesize
512KB
-
Filesize
9.6MB
-
Filesize
512KB
-
Filesize
512KB
-
Filesize
9.6MB
-
Filesize
1024KB
-
Filesize
1024KB
-
Filesize
1024KB
-
Filesize
1024KB
-
Filesize
1024KB
-
Filesize
1024KB
-
Filesize
1024KB
-
Filesize
1024KB
-
Filesize
9.6MB
-
Filesize
1024KB
-
Filesize
1024KB
-
Filesize
1024KB
-
Filesize
1024KB
-
Filesize
1024KB
-
Filesize
1024KB
-
Filesize
1024KB
-
Filesize
1024KB
-
Filesize
512KB
-
Filesize
512KB
-
Filesize
1024KB
-
Filesize
512KB
-
Filesize
1024KB
-
Filesize
1024KB
-
Filesize
1024KB
-
Filesize
1024KB
-
Filesize
512KB
-
Filesize
1024KB
-
Filesize
1024KB
-
Filesize
512KB
-
Filesize
1024KB
-
Filesize
9.6MB
-
Filesize
512KB
-
Filesize
512KB
-
Filesize
512KB
-
Filesize
512KB
-
Filesize
512KB
-
Filesize
9.6MB
-
Filesize
512KB
-
Filesize
9.6MB
-
Filesize
512KB
-
Filesize
512KB
-
Filesize
9.6MB
-
Filesize
512KB
-
Filesize
9.6MB