Analysis
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max time kernel
117s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
31-12-2023 15:53
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
3a75a55542e7492de47886124c57c694.dll
Resource
win7-20231129-en
windows7-x64
4 signatures
150 seconds
Behavioral task
behavioral2
Sample
3a75a55542e7492de47886124c57c694.dll
Resource
win10v2004-20231215-en
windows10-2004-x64
4 signatures
150 seconds
General
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Target
3a75a55542e7492de47886124c57c694.dll
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Size
11KB
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MD5
3a75a55542e7492de47886124c57c694
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SHA1
48032ce3186d119f2f152aee7986e0abc62d7bf5
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SHA256
c8c566fcfaaff1928b49e6d10baba523bf601cf81cf4943f90bc9f09922b2a62
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SHA512
dfbc83af962db09e8d31d942535abb841063f34cfbbbaf53ca3d6e4d7d163f9c6035ace3c0582c6bcae20f5c51df1aac03d81653f1ed19950acffae796db492d
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SSDEEP
192:amUm0TZeITCocYGWf/IeUK3Gg9m9fziRa/5jp3VpBReo+4Crv5YOveM8mYekgUwl:OTxHc7WdH9TWdVjkl4CrWO2zs
Score
5/10
Malware Config
Signatures
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Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\sperls.dll rundll32.exe File opened for modification C:\Windows\SysWOW64\sperls.dll rundll32.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 2900 rundll32.exe 2900 rundll32.exe 2900 rundll32.exe 2900 rundll32.exe 2900 rundll32.exe 2900 rundll32.exe 2900 rundll32.exe 2900 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2900 rundll32.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2888 wrote to memory of 2900 2888 rundll32.exe 16 PID 2888 wrote to memory of 2900 2888 rundll32.exe 16 PID 2888 wrote to memory of 2900 2888 rundll32.exe 16 PID 2888 wrote to memory of 2900 2888 rundll32.exe 16 PID 2888 wrote to memory of 2900 2888 rundll32.exe 16 PID 2888 wrote to memory of 2900 2888 rundll32.exe 16 PID 2888 wrote to memory of 2900 2888 rundll32.exe 16 PID 2900 wrote to memory of 1380 2900 rundll32.exe 9
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:1380
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\3a75a55542e7492de47886124c57c694.dll,#12⤵
- Suspicious use of WriteProcessMemory
PID:2888
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\3a75a55542e7492de47886124c57c694.dll,#11⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2900