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Analysis
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max time kernel
157s -
max time network
169s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
29/10/2022, 04:22
Static task
static1
Behavioral task
behavioral1
Sample
f3a965324d2b610859a4deeee2cbe8ad6a68a82e2509235b8844a740cb3c52cd.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
f3a965324d2b610859a4deeee2cbe8ad6a68a82e2509235b8844a740cb3c52cd.exe
Resource
win10v2004-20220812-en
General
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Target
f3a965324d2b610859a4deeee2cbe8ad6a68a82e2509235b8844a740cb3c52cd.exe
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Size
403KB
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MD5
4c1d7684753403b29a4ed286d3f66853
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SHA1
1c340c62f0ab6829f8be42233b952354c160a591
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SHA256
f3a965324d2b610859a4deeee2cbe8ad6a68a82e2509235b8844a740cb3c52cd
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SHA512
862c3cc49cf3fc193ff16f5ef456f67116b98c199ca1821d4337d9254883fb45a0bff61e0270fc0d5385b962ec3574415eec82e7067c4fe2e97051f011cb73a0
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SSDEEP
12288:cVlAkeLH0YVc7XS0h62zYs1yBVdjlrvx7FaYke:cVlAvVcdhPzcFl1pf
Malware Config
Signatures
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Microstat = "C:\\Users\\Admin\\AppData\\Roaming\\Microstat\\Default File.exe" RegAsm.exe -
Drops desktop.ini file(s) 2 IoCs
description ioc Process File created C:\Windows\assembly\Desktop.ini RegAsm.exe File opened for modification C:\Windows\assembly\Desktop.ini RegAsm.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 5116 set thread context of 2304 5116 f3a965324d2b610859a4deeee2cbe8ad6a68a82e2509235b8844a740cb3c52cd.exe 88 -
Drops file in Windows directory 3 IoCs
description ioc Process File opened for modification C:\Windows\assembly RegAsm.exe File created C:\Windows\assembly\Desktop.ini RegAsm.exe File opened for modification C:\Windows\assembly\Desktop.ini RegAsm.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2304 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 5116 f3a965324d2b610859a4deeee2cbe8ad6a68a82e2509235b8844a740cb3c52cd.exe Token: SeDebugPrivilege 2304 RegAsm.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2304 RegAsm.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 5116 wrote to memory of 2304 5116 f3a965324d2b610859a4deeee2cbe8ad6a68a82e2509235b8844a740cb3c52cd.exe 88 PID 5116 wrote to memory of 2304 5116 f3a965324d2b610859a4deeee2cbe8ad6a68a82e2509235b8844a740cb3c52cd.exe 88 PID 5116 wrote to memory of 2304 5116 f3a965324d2b610859a4deeee2cbe8ad6a68a82e2509235b8844a740cb3c52cd.exe 88 PID 5116 wrote to memory of 2304 5116 f3a965324d2b610859a4deeee2cbe8ad6a68a82e2509235b8844a740cb3c52cd.exe 88 PID 5116 wrote to memory of 2304 5116 f3a965324d2b610859a4deeee2cbe8ad6a68a82e2509235b8844a740cb3c52cd.exe 88 PID 5116 wrote to memory of 2304 5116 f3a965324d2b610859a4deeee2cbe8ad6a68a82e2509235b8844a740cb3c52cd.exe 88 PID 5116 wrote to memory of 2304 5116 f3a965324d2b610859a4deeee2cbe8ad6a68a82e2509235b8844a740cb3c52cd.exe 88 PID 5116 wrote to memory of 2304 5116 f3a965324d2b610859a4deeee2cbe8ad6a68a82e2509235b8844a740cb3c52cd.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\f3a965324d2b610859a4deeee2cbe8ad6a68a82e2509235b8844a740cb3c52cd.exe"C:\Users\Admin\AppData\Local\Temp\f3a965324d2b610859a4deeee2cbe8ad6a68a82e2509235b8844a740cb3c52cd.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5116 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"2⤵
- Adds Run key to start application
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2304
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