Analysis
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max time kernel
92s -
max time network
118s -
platform
windows10-2004_x64 -
resource
win10v2004-20240221-en -
resource tags
arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system -
submitted
25-02-2024 13:11
Behavioral task
behavioral1
Sample
Umbral.exe
Resource
win10-20240221-en
windows10-1703-x64
4 signatures
150 seconds
Behavioral task
behavioral2
Sample
Umbral.exe
Resource
win10v2004-20240221-en
windows10-2004-x64
4 signatures
150 seconds
General
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Target
Umbral.exe
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Size
231KB
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MD5
24a8f91902c7af34071b1f843bee6b56
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SHA1
2b2bf367c47e11277766b5ac8c80ecbb75966b29
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SHA256
b3ae664a5ff979c45c5a78cb506f61f4073f33b9d72c4db82ff395b4a3dcfc9f
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SHA512
60ca4cfbb90254d00ed5bc15d105ea4e3b6f426c95c65855636dabe738a5e4f026b7eab1ffc5f31178dbd3ff34d26f3d4a634a2e64b222a540f01a4bf243fc16
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SSDEEP
6144:xloZM+rIkd8g+EtXHkv/iD4plbJ8il92iDe8NhoV5tB48e1mFEi:DoZtL+EP87bJ8il92iDe8NhoNAY
Malware Config
Signatures
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Detect Umbral payload 1 IoCs
resource yara_rule behavioral2/memory/2448-0-0x0000023349860000-0x00000233498A0000-memory.dmp family_umbral -
Suspicious use of AdjustPrivilegeToken 43 IoCs
description pid Process Token: SeDebugPrivilege 2448 Umbral.exe Token: SeIncreaseQuotaPrivilege 5068 wmic.exe Token: SeSecurityPrivilege 5068 wmic.exe Token: SeTakeOwnershipPrivilege 5068 wmic.exe Token: SeLoadDriverPrivilege 5068 wmic.exe Token: SeSystemProfilePrivilege 5068 wmic.exe Token: SeSystemtimePrivilege 5068 wmic.exe Token: SeProfSingleProcessPrivilege 5068 wmic.exe Token: SeIncBasePriorityPrivilege 5068 wmic.exe Token: SeCreatePagefilePrivilege 5068 wmic.exe Token: SeBackupPrivilege 5068 wmic.exe Token: SeRestorePrivilege 5068 wmic.exe Token: SeShutdownPrivilege 5068 wmic.exe Token: SeDebugPrivilege 5068 wmic.exe Token: SeSystemEnvironmentPrivilege 5068 wmic.exe Token: SeRemoteShutdownPrivilege 5068 wmic.exe Token: SeUndockPrivilege 5068 wmic.exe Token: SeManageVolumePrivilege 5068 wmic.exe Token: 33 5068 wmic.exe Token: 34 5068 wmic.exe Token: 35 5068 wmic.exe Token: 36 5068 wmic.exe Token: SeIncreaseQuotaPrivilege 5068 wmic.exe Token: SeSecurityPrivilege 5068 wmic.exe Token: SeTakeOwnershipPrivilege 5068 wmic.exe Token: SeLoadDriverPrivilege 5068 wmic.exe Token: SeSystemProfilePrivilege 5068 wmic.exe Token: SeSystemtimePrivilege 5068 wmic.exe Token: SeProfSingleProcessPrivilege 5068 wmic.exe Token: SeIncBasePriorityPrivilege 5068 wmic.exe Token: SeCreatePagefilePrivilege 5068 wmic.exe Token: SeBackupPrivilege 5068 wmic.exe Token: SeRestorePrivilege 5068 wmic.exe Token: SeShutdownPrivilege 5068 wmic.exe Token: SeDebugPrivilege 5068 wmic.exe Token: SeSystemEnvironmentPrivilege 5068 wmic.exe Token: SeRemoteShutdownPrivilege 5068 wmic.exe Token: SeUndockPrivilege 5068 wmic.exe Token: SeManageVolumePrivilege 5068 wmic.exe Token: 33 5068 wmic.exe Token: 34 5068 wmic.exe Token: 35 5068 wmic.exe Token: 36 5068 wmic.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 2448 wrote to memory of 5068 2448 Umbral.exe 85 PID 2448 wrote to memory of 5068 2448 Umbral.exe 85