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Analysis
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max time kernel
7s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
31/12/2023, 01:56
Behavioral task
behavioral1
Sample
238df395c33b4b139cdfcd48a871b759.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
238df395c33b4b139cdfcd48a871b759.exe
Resource
win10v2004-20231222-en
General
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Target
238df395c33b4b139cdfcd48a871b759.exe
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Size
911KB
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MD5
238df395c33b4b139cdfcd48a871b759
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SHA1
b83cb7d627cdcf46a6ed89f68644ef5f2d9ed20f
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SHA256
97e81fe572b0b43a79a678e04d1ec5f1c11243087e73708d0a1486eb3cc657ff
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SHA512
be3654267d03d6f822497b52e34f3e77bd508d797d7184541528ae893f6784ffa754f040b1cfb46db79a1a9c43e097ca2228d6c180d189886aecc9aede65a8b4
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SSDEEP
12288:d8UaT9XY2siA0bMG09xD7I3Gg8ecgVvfBoCDBOQQYbVXpuy1r/f:uUKoN0bUxgGa/pfBHDb+y1L
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" 238df395c33b4b139cdfcd48a871b759.exe -
resource yara_rule behavioral2/memory/2888-0-0x0000000000400000-0x00000000004E5000-memory.dmp upx behavioral2/memory/2888-14-0x0000000000400000-0x00000000004E5000-memory.dmp upx behavioral2/memory/2168-18-0x0000000000400000-0x00000000004E5000-memory.dmp upx behavioral2/memory/2168-15-0x0000000000400000-0x00000000004E5000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" 238df395c33b4b139cdfcd48a871b759.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of AdjustPrivilegeToken 24 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 2888 238df395c33b4b139cdfcd48a871b759.exe Token: SeSecurityPrivilege 2888 238df395c33b4b139cdfcd48a871b759.exe Token: SeTakeOwnershipPrivilege 2888 238df395c33b4b139cdfcd48a871b759.exe Token: SeLoadDriverPrivilege 2888 238df395c33b4b139cdfcd48a871b759.exe Token: SeSystemProfilePrivilege 2888 238df395c33b4b139cdfcd48a871b759.exe Token: SeSystemtimePrivilege 2888 238df395c33b4b139cdfcd48a871b759.exe Token: SeProfSingleProcessPrivilege 2888 238df395c33b4b139cdfcd48a871b759.exe Token: SeIncBasePriorityPrivilege 2888 238df395c33b4b139cdfcd48a871b759.exe Token: SeCreatePagefilePrivilege 2888 238df395c33b4b139cdfcd48a871b759.exe Token: SeBackupPrivilege 2888 238df395c33b4b139cdfcd48a871b759.exe Token: SeRestorePrivilege 2888 238df395c33b4b139cdfcd48a871b759.exe Token: SeShutdownPrivilege 2888 238df395c33b4b139cdfcd48a871b759.exe Token: SeDebugPrivilege 2888 238df395c33b4b139cdfcd48a871b759.exe Token: SeSystemEnvironmentPrivilege 2888 238df395c33b4b139cdfcd48a871b759.exe Token: SeChangeNotifyPrivilege 2888 238df395c33b4b139cdfcd48a871b759.exe Token: SeRemoteShutdownPrivilege 2888 238df395c33b4b139cdfcd48a871b759.exe Token: SeUndockPrivilege 2888 238df395c33b4b139cdfcd48a871b759.exe Token: SeManageVolumePrivilege 2888 238df395c33b4b139cdfcd48a871b759.exe Token: SeImpersonatePrivilege 2888 238df395c33b4b139cdfcd48a871b759.exe Token: SeCreateGlobalPrivilege 2888 238df395c33b4b139cdfcd48a871b759.exe Token: 33 2888 238df395c33b4b139cdfcd48a871b759.exe Token: 34 2888 238df395c33b4b139cdfcd48a871b759.exe Token: 35 2888 238df395c33b4b139cdfcd48a871b759.exe Token: 36 2888 238df395c33b4b139cdfcd48a871b759.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\238df395c33b4b139cdfcd48a871b759.exe"C:\Users\Admin\AppData\Local\Temp\238df395c33b4b139cdfcd48a871b759.exe"1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:2888 -
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"2⤵PID:2168
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C:\Program Files (x86)\Internet Explorer\iexplore.exe"C:\Program Files (x86)\Internet Explorer\iexplore.exe"1⤵PID:2980