Analysis
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max time kernel
143s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
13-02-2024 18:26
Behavioral task
behavioral1
Sample
Umbral.exe
Resource
win7-20231215-en
windows7-x64
4 signatures
150 seconds
General
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Target
Umbral.exe
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Size
230KB
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MD5
133b51b989ffb3d42bfe0fa5f07ef542
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SHA1
5a80a0ca68438ad36cb540b8685d09750f98c2d2
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SHA256
da00749bd6a9cf20ee586951616f3bab8fee53535107240ff12123acf181e2e9
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SHA512
39b95bbf585f2b52b27b041d00be5aa791d4586ce16aa9db277d79cdc213e891ca32fa58687f4da9b0c27f0114872e29178e63b9c949860f1bc1def45ec93cf6
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SSDEEP
6144:9loZM+rIkd8g+EtXHkv/iD432++EKtFuMr20VJg17b8e1m4bi:foZtL+EP832++EKtFuMr20VJgNG
Malware Config
Signatures
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Detect Umbral payload 1 IoCs
resource yara_rule behavioral2/memory/3988-0-0x0000020062A50000-0x0000020062A90000-memory.dmp family_umbral -
Suspicious use of AdjustPrivilegeToken 43 IoCs
description pid Process Token: SeDebugPrivilege 3988 Umbral.exe Token: SeIncreaseQuotaPrivilege 2376 wmic.exe Token: SeSecurityPrivilege 2376 wmic.exe Token: SeTakeOwnershipPrivilege 2376 wmic.exe Token: SeLoadDriverPrivilege 2376 wmic.exe Token: SeSystemProfilePrivilege 2376 wmic.exe Token: SeSystemtimePrivilege 2376 wmic.exe Token: SeProfSingleProcessPrivilege 2376 wmic.exe Token: SeIncBasePriorityPrivilege 2376 wmic.exe Token: SeCreatePagefilePrivilege 2376 wmic.exe Token: SeBackupPrivilege 2376 wmic.exe Token: SeRestorePrivilege 2376 wmic.exe Token: SeShutdownPrivilege 2376 wmic.exe Token: SeDebugPrivilege 2376 wmic.exe Token: SeSystemEnvironmentPrivilege 2376 wmic.exe Token: SeRemoteShutdownPrivilege 2376 wmic.exe Token: SeUndockPrivilege 2376 wmic.exe Token: SeManageVolumePrivilege 2376 wmic.exe Token: 33 2376 wmic.exe Token: 34 2376 wmic.exe Token: 35 2376 wmic.exe Token: 36 2376 wmic.exe Token: SeIncreaseQuotaPrivilege 2376 wmic.exe Token: SeSecurityPrivilege 2376 wmic.exe Token: SeTakeOwnershipPrivilege 2376 wmic.exe Token: SeLoadDriverPrivilege 2376 wmic.exe Token: SeSystemProfilePrivilege 2376 wmic.exe Token: SeSystemtimePrivilege 2376 wmic.exe Token: SeProfSingleProcessPrivilege 2376 wmic.exe Token: SeIncBasePriorityPrivilege 2376 wmic.exe Token: SeCreatePagefilePrivilege 2376 wmic.exe Token: SeBackupPrivilege 2376 wmic.exe Token: SeRestorePrivilege 2376 wmic.exe Token: SeShutdownPrivilege 2376 wmic.exe Token: SeDebugPrivilege 2376 wmic.exe Token: SeSystemEnvironmentPrivilege 2376 wmic.exe Token: SeRemoteShutdownPrivilege 2376 wmic.exe Token: SeUndockPrivilege 2376 wmic.exe Token: SeManageVolumePrivilege 2376 wmic.exe Token: 33 2376 wmic.exe Token: 34 2376 wmic.exe Token: 35 2376 wmic.exe Token: 36 2376 wmic.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 3988 wrote to memory of 2376 3988 Umbral.exe 84 PID 3988 wrote to memory of 2376 3988 Umbral.exe 84