Analysis
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max time kernel
141s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
23-11-2022 13:41
Static task
static1
Behavioral task
behavioral1
Sample
8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe
Resource
win10v2004-20220812-en
General
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Target
8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe
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Size
82KB
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MD5
a1293b20bacab2e4364908841f23e2b9
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SHA1
38323e976fa32a9b7b81686026e75b113b6f2838
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SHA256
8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673
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SHA512
c92bd7fa8f2d0c6af77a8443a3717b8755aefb85ea265da9915e06a7f31c7e07d9bbc2137f8844810419a7a95947fb07c84e6f26df6119eb2856bc1d0f69f592
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SSDEEP
1536:g29dE74wmV2Ztk/Yy8mBc9XFdDkIF0ehHv:Va4LwcYylOFBxhHv
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781863308-41167814\\h7356a.exe" 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dh83552 = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781863308-41167814\\h7356a.exe" 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe -
Drops desktop.ini file(s) 1 IoCs
Processes:
8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exedescription ioc process File created C:\RECYCLER\S-1-5-21-0243556031-888888379-781863308-41167814\Desktop.ini 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe -
Modifies WinLogon 2 TTPs 1 IoCs
Processes:
8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Taskman = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781863308-41167814\\h7356a.exe" 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exedescription pid process target process PID 5048 set thread context of 5088 5048 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exepid process 5048 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe 5048 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe 5048 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe 5048 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe 5088 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe 5088 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exedescription pid process target process PID 5048 wrote to memory of 5088 5048 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe PID 5048 wrote to memory of 5088 5048 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe PID 5048 wrote to memory of 5088 5048 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe PID 5048 wrote to memory of 5088 5048 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe PID 5048 wrote to memory of 5088 5048 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe PID 5048 wrote to memory of 5088 5048 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe PID 5048 wrote to memory of 5088 5048 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe PID 5048 wrote to memory of 5088 5048 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe PID 5088 wrote to memory of 3076 5088 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe Explorer.EXE PID 5088 wrote to memory of 3076 5088 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe Explorer.EXE PID 5088 wrote to memory of 3076 5088 8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe Explorer.EXE
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:3076
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C:\Users\Admin\AppData\Local\Temp\8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe"C:\Users\Admin\AppData\Local\Temp\8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5048 -
C:\Users\Admin\AppData\Local\Temp\8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe"C:\Users\Admin\AppData\Local\Temp\8f78c72f16d7081b61b94119252fb0b2edcdb0e4486b6c32c0f0bec91b8b3673.exe"3⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Drops desktop.ini file(s)
- Modifies WinLogon
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5088