Analysis
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max time kernel
135s -
max time network
123s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
21-10-2024 15:55
Behavioral task
behavioral1
Sample
cmclient.exe
Resource
win7-20240903-en
windows7-x64
5 signatures
150 seconds
General
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Target
cmclient.exe
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Size
227KB
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MD5
2ff5eea0426612b967301396523c9835
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SHA1
af092e6d35d0c0c09d07102fb7e4416459b3d056
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SHA256
d36f3b379bcafb2f206a5dc18297c0c0fa0fa6afb44f7640da54cd809051b24c
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SHA512
d442d98abd61aa7f551e3309028e303c4390ab54bb94149d8bf0022b7faab1d70e40c66875f8d997e2203964dc8213084d50b108e088af5b433dce2c225f7a3c
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SSDEEP
6144:+loZM+rIkd8g+EtXHkv/iD46NdMiAfbokxUyzzqZYw8e1m9Qi:ooZtL+EP86NdMiAfbokxUyzzqfWJ
Malware Config
Signatures
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Detect Umbral payload 1 IoCs
resource yara_rule behavioral2/memory/3968-1-0x000002586FB50000-0x000002586FB90000-memory.dmp family_umbral -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 6 ip-api.com -
Suspicious use of AdjustPrivilegeToken 43 IoCs
description pid Process Token: SeDebugPrivilege 3968 cmclient.exe Token: SeIncreaseQuotaPrivilege 4828 wmic.exe Token: SeSecurityPrivilege 4828 wmic.exe Token: SeTakeOwnershipPrivilege 4828 wmic.exe Token: SeLoadDriverPrivilege 4828 wmic.exe Token: SeSystemProfilePrivilege 4828 wmic.exe Token: SeSystemtimePrivilege 4828 wmic.exe Token: SeProfSingleProcessPrivilege 4828 wmic.exe Token: SeIncBasePriorityPrivilege 4828 wmic.exe Token: SeCreatePagefilePrivilege 4828 wmic.exe Token: SeBackupPrivilege 4828 wmic.exe Token: SeRestorePrivilege 4828 wmic.exe Token: SeShutdownPrivilege 4828 wmic.exe Token: SeDebugPrivilege 4828 wmic.exe Token: SeSystemEnvironmentPrivilege 4828 wmic.exe Token: SeRemoteShutdownPrivilege 4828 wmic.exe Token: SeUndockPrivilege 4828 wmic.exe Token: SeManageVolumePrivilege 4828 wmic.exe Token: 33 4828 wmic.exe Token: 34 4828 wmic.exe Token: 35 4828 wmic.exe Token: 36 4828 wmic.exe Token: SeIncreaseQuotaPrivilege 4828 wmic.exe Token: SeSecurityPrivilege 4828 wmic.exe Token: SeTakeOwnershipPrivilege 4828 wmic.exe Token: SeLoadDriverPrivilege 4828 wmic.exe Token: SeSystemProfilePrivilege 4828 wmic.exe Token: SeSystemtimePrivilege 4828 wmic.exe Token: SeProfSingleProcessPrivilege 4828 wmic.exe Token: SeIncBasePriorityPrivilege 4828 wmic.exe Token: SeCreatePagefilePrivilege 4828 wmic.exe Token: SeBackupPrivilege 4828 wmic.exe Token: SeRestorePrivilege 4828 wmic.exe Token: SeShutdownPrivilege 4828 wmic.exe Token: SeDebugPrivilege 4828 wmic.exe Token: SeSystemEnvironmentPrivilege 4828 wmic.exe Token: SeRemoteShutdownPrivilege 4828 wmic.exe Token: SeUndockPrivilege 4828 wmic.exe Token: SeManageVolumePrivilege 4828 wmic.exe Token: 33 4828 wmic.exe Token: 34 4828 wmic.exe Token: 35 4828 wmic.exe Token: 36 4828 wmic.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 3968 wrote to memory of 4828 3968 cmclient.exe 86 PID 3968 wrote to memory of 4828 3968 cmclient.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\cmclient.exe"C:\Users\Admin\AppData\Local\Temp\cmclient.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3968 -
C:\Windows\System32\Wbem\wmic.exe"wmic.exe" csproduct get uuid2⤵
- Suspicious use of AdjustPrivilegeToken
PID:4828
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