Analysis
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max time kernel
142s -
max time network
160s -
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 13:26
Static task
static1
Behavioral task
behavioral1
Sample
b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe
Resource
win7-20220812-en
General
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Target
b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe
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Size
1.3MB
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MD5
3c4db28819a33c3eed4b6c96d9cf8113
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SHA1
a3e69dccf4f300ca38850a958cffc4ac3f9bd9a9
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SHA256
b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32
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SHA512
f0477f93b010979de911bc2d42a720296ac8304666894e6f5c2f1a06aebf51842cbe22580b33bd5bfc801ed3f080d7d10200cc52f6ce4931c6ba2356a44c449e
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SSDEEP
24576:0xlKDEjd6OnmwPdBoSJbnF9pTjqULHNjtw7lOTcwSHRXGJE:Wc1w6StFvTnLFmOTiHR
Malware Config
Signatures
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Possible privilege escalation attempt 2 IoCs
Processes:
takeown.exeicacls.exepid process 4288 takeown.exe 4244 icacls.exe -
Modifies file permissions 1 TTPs 2 IoCs
Processes:
takeown.exeicacls.exepid process 4288 takeown.exe 4244 icacls.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Drops file in System32 directory 1 IoCs
Processes:
b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exedescription ioc process File opened for modification C:\Windows\System32\Sens.dll b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe -
Drops file in Windows directory 2 IoCs
Processes:
b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exedescription ioc process File opened for modification C:\WINDOWS\Bef.tmp b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe File opened for modification C:\Windows\yre.tmp b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exepid process 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
takeown.exedescription pid process Token: SeTakeOwnershipPrivilege 4288 takeown.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exedescription pid process target process PID 2512 wrote to memory of 4288 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe takeown.exe PID 2512 wrote to memory of 4288 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe takeown.exe PID 2512 wrote to memory of 4244 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe icacls.exe PID 2512 wrote to memory of 4244 2512 b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe icacls.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe"C:\Users\Admin\AppData\Local\Temp\b1b4a65909869ac8841b92b02f6654eced71ea022fcb02e489b413231c736c32.exe"1⤵
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\takeown.exetakeown /f "C:\WINDOWS\system32\Sens.dll"2⤵
- Possible privilege escalation attempt
- Modifies file permissions
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SYSTEM32\icacls.exeicacls "C:\WINDOWS\system32\Sens.dll" /grant administrators:F2⤵
- Possible privilege escalation attempt
- Modifies file permissions