Analysis
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max time kernel
143s -
max time network
155s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-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 behavioral3/memory/2580-0-0x00000207E2DD0000-0x00000207E2E10000-memory.dmp family_umbral -
Suspicious use of AdjustPrivilegeToken 43 IoCs
description pid Process Token: SeDebugPrivilege 2580 Umbral.exe Token: SeIncreaseQuotaPrivilege 1560 wmic.exe Token: SeSecurityPrivilege 1560 wmic.exe Token: SeTakeOwnershipPrivilege 1560 wmic.exe Token: SeLoadDriverPrivilege 1560 wmic.exe Token: SeSystemProfilePrivilege 1560 wmic.exe Token: SeSystemtimePrivilege 1560 wmic.exe Token: SeProfSingleProcessPrivilege 1560 wmic.exe Token: SeIncBasePriorityPrivilege 1560 wmic.exe Token: SeCreatePagefilePrivilege 1560 wmic.exe Token: SeBackupPrivilege 1560 wmic.exe Token: SeRestorePrivilege 1560 wmic.exe Token: SeShutdownPrivilege 1560 wmic.exe Token: SeDebugPrivilege 1560 wmic.exe Token: SeSystemEnvironmentPrivilege 1560 wmic.exe Token: SeRemoteShutdownPrivilege 1560 wmic.exe Token: SeUndockPrivilege 1560 wmic.exe Token: SeManageVolumePrivilege 1560 wmic.exe Token: 33 1560 wmic.exe Token: 34 1560 wmic.exe Token: 35 1560 wmic.exe Token: 36 1560 wmic.exe Token: SeIncreaseQuotaPrivilege 1560 wmic.exe Token: SeSecurityPrivilege 1560 wmic.exe Token: SeTakeOwnershipPrivilege 1560 wmic.exe Token: SeLoadDriverPrivilege 1560 wmic.exe Token: SeSystemProfilePrivilege 1560 wmic.exe Token: SeSystemtimePrivilege 1560 wmic.exe Token: SeProfSingleProcessPrivilege 1560 wmic.exe Token: SeIncBasePriorityPrivilege 1560 wmic.exe Token: SeCreatePagefilePrivilege 1560 wmic.exe Token: SeBackupPrivilege 1560 wmic.exe Token: SeRestorePrivilege 1560 wmic.exe Token: SeShutdownPrivilege 1560 wmic.exe Token: SeDebugPrivilege 1560 wmic.exe Token: SeSystemEnvironmentPrivilege 1560 wmic.exe Token: SeRemoteShutdownPrivilege 1560 wmic.exe Token: SeUndockPrivilege 1560 wmic.exe Token: SeManageVolumePrivilege 1560 wmic.exe Token: 33 1560 wmic.exe Token: 34 1560 wmic.exe Token: 35 1560 wmic.exe Token: 36 1560 wmic.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 2580 wrote to memory of 1560 2580 Umbral.exe 78 PID 2580 wrote to memory of 1560 2580 Umbral.exe 78