Analysis
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max time kernel
39s -
max time network
19s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
05-02-2024 10:00
Behavioral task
behavioral1
Sample
Umbral.exe
Resource
win7-20231215-en
windows7-x64
4 signatures
300 seconds
Behavioral task
behavioral2
Sample
Umbral.exe
Resource
win10-20231215-en
windows10-1703-x64
4 signatures
300 seconds
Behavioral task
behavioral3
Sample
Umbral.exe
Resource
win10v2004-20231215-en
windows10-2004-x64
4 signatures
300 seconds
General
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Target
Umbral.exe
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Size
231KB
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MD5
2bd5664afed4d5821041e61b19f55a30
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SHA1
8d0f1ea431c0e00b39898a05f4ae37ac55800703
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SHA256
5e0dce9978369a90f9380c4630f79b2801dd0251f699bee7d7b85f43c51f027e
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SHA512
991066a886a2fd36246d1fe88a7c62cb6672a7c8821c94a4b1c8df650968a39aa0f1519451d569b9b478a30cd3465fda32da69816b5ce86bd95ccd9a7d781fe7
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SSDEEP
6144:RloZM+rIkd8g+EtXHkv/iD4+B/RkqNlOcLWU1pAN8b8e1mKi:joZtL+EP8+B/RkqNlOcLWU1pAa4
Malware Config
Signatures
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Detect Umbral payload 2 IoCs
resource yara_rule behavioral1/memory/3044-0-0x00000000013B0000-0x00000000013F0000-memory.dmp family_umbral behavioral1/memory/3044-2-0x000000001AFC0000-0x000000001B040000-memory.dmp family_umbral -
Suspicious use of AdjustPrivilegeToken 41 IoCs
description pid Process Token: SeDebugPrivilege 3044 Umbral.exe Token: SeIncreaseQuotaPrivilege 2328 wmic.exe Token: SeSecurityPrivilege 2328 wmic.exe Token: SeTakeOwnershipPrivilege 2328 wmic.exe Token: SeLoadDriverPrivilege 2328 wmic.exe Token: SeSystemProfilePrivilege 2328 wmic.exe Token: SeSystemtimePrivilege 2328 wmic.exe Token: SeProfSingleProcessPrivilege 2328 wmic.exe Token: SeIncBasePriorityPrivilege 2328 wmic.exe Token: SeCreatePagefilePrivilege 2328 wmic.exe Token: SeBackupPrivilege 2328 wmic.exe Token: SeRestorePrivilege 2328 wmic.exe Token: SeShutdownPrivilege 2328 wmic.exe Token: SeDebugPrivilege 2328 wmic.exe Token: SeSystemEnvironmentPrivilege 2328 wmic.exe Token: SeRemoteShutdownPrivilege 2328 wmic.exe Token: SeUndockPrivilege 2328 wmic.exe Token: SeManageVolumePrivilege 2328 wmic.exe Token: 33 2328 wmic.exe Token: 34 2328 wmic.exe Token: 35 2328 wmic.exe Token: SeIncreaseQuotaPrivilege 2328 wmic.exe Token: SeSecurityPrivilege 2328 wmic.exe Token: SeTakeOwnershipPrivilege 2328 wmic.exe Token: SeLoadDriverPrivilege 2328 wmic.exe Token: SeSystemProfilePrivilege 2328 wmic.exe Token: SeSystemtimePrivilege 2328 wmic.exe Token: SeProfSingleProcessPrivilege 2328 wmic.exe Token: SeIncBasePriorityPrivilege 2328 wmic.exe Token: SeCreatePagefilePrivilege 2328 wmic.exe Token: SeBackupPrivilege 2328 wmic.exe Token: SeRestorePrivilege 2328 wmic.exe Token: SeShutdownPrivilege 2328 wmic.exe Token: SeDebugPrivilege 2328 wmic.exe Token: SeSystemEnvironmentPrivilege 2328 wmic.exe Token: SeRemoteShutdownPrivilege 2328 wmic.exe Token: SeUndockPrivilege 2328 wmic.exe Token: SeManageVolumePrivilege 2328 wmic.exe Token: 33 2328 wmic.exe Token: 34 2328 wmic.exe Token: 35 2328 wmic.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3044 wrote to memory of 2328 3044 Umbral.exe 28 PID 3044 wrote to memory of 2328 3044 Umbral.exe 28 PID 3044 wrote to memory of 2328 3044 Umbral.exe 28