Analysis
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max time kernel
117s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system -
submitted
24-06-2024 15:13
Behavioral task
behavioral1
Sample
WindowsCRPT.exe
Resource
win7-20240220-en
windows7-x64
4 signatures
150 seconds
General
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Target
WindowsCRPT.exe
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Size
236KB
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MD5
912f84739a9dc20a49c99def03e5551d
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SHA1
716bfd7315d148975a5d24327e1895ec86bec7aa
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SHA256
c0cee96676148e2736894cbf46345436be05fb126a4f0c32ff74c74de053b28d
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SHA512
1804d41780ec0d42e2caee8116e574b593a10c75e585e45666c3b18c2c147644bf2ac218b404dcc6648fbe06a4e82e3bbd328df782069cd6daee4be4c1c9c5ff
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SSDEEP
6144:BloZM+rIkd8g+EtXHkv/iD48KlH3tW+x2kt/qqfKhb8e1mU4iZ:zoZtL+EP88KlH3tW+x2kt/qqfirBZ
Malware Config
Signatures
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Detect Umbral payload 1 IoCs
resource yara_rule behavioral1/memory/2836-1-0x00000000000C0000-0x0000000000100000-memory.dmp family_umbral -
Suspicious use of AdjustPrivilegeToken 41 IoCs
description pid Process Token: SeDebugPrivilege 2836 WindowsCRPT.exe Token: SeIncreaseQuotaPrivilege 2664 wmic.exe Token: SeSecurityPrivilege 2664 wmic.exe Token: SeTakeOwnershipPrivilege 2664 wmic.exe Token: SeLoadDriverPrivilege 2664 wmic.exe Token: SeSystemProfilePrivilege 2664 wmic.exe Token: SeSystemtimePrivilege 2664 wmic.exe Token: SeProfSingleProcessPrivilege 2664 wmic.exe Token: SeIncBasePriorityPrivilege 2664 wmic.exe Token: SeCreatePagefilePrivilege 2664 wmic.exe Token: SeBackupPrivilege 2664 wmic.exe Token: SeRestorePrivilege 2664 wmic.exe Token: SeShutdownPrivilege 2664 wmic.exe Token: SeDebugPrivilege 2664 wmic.exe Token: SeSystemEnvironmentPrivilege 2664 wmic.exe Token: SeRemoteShutdownPrivilege 2664 wmic.exe Token: SeUndockPrivilege 2664 wmic.exe Token: SeManageVolumePrivilege 2664 wmic.exe Token: 33 2664 wmic.exe Token: 34 2664 wmic.exe Token: 35 2664 wmic.exe Token: SeIncreaseQuotaPrivilege 2664 wmic.exe Token: SeSecurityPrivilege 2664 wmic.exe Token: SeTakeOwnershipPrivilege 2664 wmic.exe Token: SeLoadDriverPrivilege 2664 wmic.exe Token: SeSystemProfilePrivilege 2664 wmic.exe Token: SeSystemtimePrivilege 2664 wmic.exe Token: SeProfSingleProcessPrivilege 2664 wmic.exe Token: SeIncBasePriorityPrivilege 2664 wmic.exe Token: SeCreatePagefilePrivilege 2664 wmic.exe Token: SeBackupPrivilege 2664 wmic.exe Token: SeRestorePrivilege 2664 wmic.exe Token: SeShutdownPrivilege 2664 wmic.exe Token: SeDebugPrivilege 2664 wmic.exe Token: SeSystemEnvironmentPrivilege 2664 wmic.exe Token: SeRemoteShutdownPrivilege 2664 wmic.exe Token: SeUndockPrivilege 2664 wmic.exe Token: SeManageVolumePrivilege 2664 wmic.exe Token: 33 2664 wmic.exe Token: 34 2664 wmic.exe Token: 35 2664 wmic.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2836 wrote to memory of 2664 2836 WindowsCRPT.exe 28 PID 2836 wrote to memory of 2664 2836 WindowsCRPT.exe 28 PID 2836 wrote to memory of 2664 2836 WindowsCRPT.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\WindowsCRPT.exe"C:\Users\Admin\AppData\Local\Temp\WindowsCRPT.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2836 -
C:\Windows\System32\Wbem\wmic.exe"wmic.exe" csproduct get uuid2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2664
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