Analysis
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max time kernel
26s -
max time network
10s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
16-03-2024 21:29
General
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Target
Umbral.exe
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Size
229KB
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MD5
5af9c752ae4211a59d6ddc27be136764
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SHA1
7404f795d31d758f28db333ffd124985e0cc9378
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SHA256
bd0627eedef546c23e0dc70b63dbd6c144ac185a5e3710edce664f34cb87f249
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SHA512
088cf9cb0afac0c074d1612413844f10974c6a7deba82054ee8455659b4cace67e1320d32f5a3a3c38e80268c5d07ffe4d52b5e6a9b0abd27dbd0450767c0eee
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SSDEEP
3072:+61se+aFA9qpbi3cVM7hTSdm68UYLXDkpao8bE24SDT9OmxR8e1isvs+E6EiWt:p1se+uecVM7hTSdm683DPo8xr8e1Lx
Malware Config
Signatures
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Detect Umbral payload 1 IoCs
resource yara_rule behavioral1/memory/2408-0-0x0000016834250000-0x0000016834290000-memory.dmp family_umbral -
Suspicious use of AdjustPrivilegeToken 44 IoCs
description pid Process Token: SeDebugPrivilege 2408 Umbral.exe Token: SeIncreaseQuotaPrivilege 4004 wmic.exe Token: SeSecurityPrivilege 4004 wmic.exe Token: SeTakeOwnershipPrivilege 4004 wmic.exe Token: SeLoadDriverPrivilege 4004 wmic.exe Token: SeSystemProfilePrivilege 4004 wmic.exe Token: SeSystemtimePrivilege 4004 wmic.exe Token: SeProfSingleProcessPrivilege 4004 wmic.exe Token: SeIncBasePriorityPrivilege 4004 wmic.exe Token: SeCreatePagefilePrivilege 4004 wmic.exe Token: SeBackupPrivilege 4004 wmic.exe Token: SeRestorePrivilege 4004 wmic.exe Token: SeShutdownPrivilege 4004 wmic.exe Token: SeDebugPrivilege 4004 wmic.exe Token: SeSystemEnvironmentPrivilege 4004 wmic.exe Token: SeRemoteShutdownPrivilege 4004 wmic.exe Token: SeUndockPrivilege 4004 wmic.exe Token: SeManageVolumePrivilege 4004 wmic.exe Token: 33 4004 wmic.exe Token: 34 4004 wmic.exe Token: 35 4004 wmic.exe Token: 36 4004 wmic.exe Token: SeIncreaseQuotaPrivilege 4004 wmic.exe Token: SeSecurityPrivilege 4004 wmic.exe Token: SeTakeOwnershipPrivilege 4004 wmic.exe Token: SeLoadDriverPrivilege 4004 wmic.exe Token: SeSystemProfilePrivilege 4004 wmic.exe Token: SeSystemtimePrivilege 4004 wmic.exe Token: SeProfSingleProcessPrivilege 4004 wmic.exe Token: SeIncBasePriorityPrivilege 4004 wmic.exe Token: SeCreatePagefilePrivilege 4004 wmic.exe Token: SeBackupPrivilege 4004 wmic.exe Token: SeRestorePrivilege 4004 wmic.exe Token: SeShutdownPrivilege 4004 wmic.exe Token: SeDebugPrivilege 4004 wmic.exe Token: SeSystemEnvironmentPrivilege 4004 wmic.exe Token: SeRemoteShutdownPrivilege 4004 wmic.exe Token: SeUndockPrivilege 4004 wmic.exe Token: SeManageVolumePrivilege 4004 wmic.exe Token: 33 4004 wmic.exe Token: 34 4004 wmic.exe Token: 35 4004 wmic.exe Token: 36 4004 wmic.exe Token: SeShutdownPrivilege 2408 Umbral.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 2408 wrote to memory of 4004 2408 Umbral.exe 82 PID 2408 wrote to memory of 4004 2408 Umbral.exe 82