Analysis
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max time kernel
135s -
max time network
137s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
29-10-2024 10:46
Behavioral task
behavioral1
Sample
Umbral.exe
Resource
win7-20240903-en
windows7-x64
6 signatures
150 seconds
General
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Target
Umbral.exe
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Size
495KB
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MD5
582bc7b05114af523db760bc2380ec80
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SHA1
54b26ee9d7cd0f922d5e851696099c4b6fa849f2
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SHA256
751dee488d8148db816da1f2326e37e579c116f76e4f8cdf21a25d1f85e74ffe
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SHA512
9643b236e15cb9364a1e9cdd322d16d101a9ee804f958565c95037e18fae94d687c2c0c6e7cb776b00aac55e052ef1decce46189b35ffdce8dca74f910b39777
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SSDEEP
6144:vloZM+rIkd8g+EtXHkv/iD4zyPvRDAmB5KW/Cwhl0zjb8e1m0iDc:NoZtL+EP8zyPvRDAmB5KW/Cwhl076
Malware Config
Signatures
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Detect Umbral payload 1 IoCs
resource yara_rule behavioral2/memory/772-1-0x000001386AE70000-0x000001386AEF2000-memory.dmp family_umbral -
Umbral family
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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 8 ip-api.com -
Suspicious use of AdjustPrivilegeToken 43 IoCs
description pid Process Token: SeDebugPrivilege 772 Umbral.exe Token: SeIncreaseQuotaPrivilege 1820 wmic.exe Token: SeSecurityPrivilege 1820 wmic.exe Token: SeTakeOwnershipPrivilege 1820 wmic.exe Token: SeLoadDriverPrivilege 1820 wmic.exe Token: SeSystemProfilePrivilege 1820 wmic.exe Token: SeSystemtimePrivilege 1820 wmic.exe Token: SeProfSingleProcessPrivilege 1820 wmic.exe Token: SeIncBasePriorityPrivilege 1820 wmic.exe Token: SeCreatePagefilePrivilege 1820 wmic.exe Token: SeBackupPrivilege 1820 wmic.exe Token: SeRestorePrivilege 1820 wmic.exe Token: SeShutdownPrivilege 1820 wmic.exe Token: SeDebugPrivilege 1820 wmic.exe Token: SeSystemEnvironmentPrivilege 1820 wmic.exe Token: SeRemoteShutdownPrivilege 1820 wmic.exe Token: SeUndockPrivilege 1820 wmic.exe Token: SeManageVolumePrivilege 1820 wmic.exe Token: 33 1820 wmic.exe Token: 34 1820 wmic.exe Token: 35 1820 wmic.exe Token: 36 1820 wmic.exe Token: SeIncreaseQuotaPrivilege 1820 wmic.exe Token: SeSecurityPrivilege 1820 wmic.exe Token: SeTakeOwnershipPrivilege 1820 wmic.exe Token: SeLoadDriverPrivilege 1820 wmic.exe Token: SeSystemProfilePrivilege 1820 wmic.exe Token: SeSystemtimePrivilege 1820 wmic.exe Token: SeProfSingleProcessPrivilege 1820 wmic.exe Token: SeIncBasePriorityPrivilege 1820 wmic.exe Token: SeCreatePagefilePrivilege 1820 wmic.exe Token: SeBackupPrivilege 1820 wmic.exe Token: SeRestorePrivilege 1820 wmic.exe Token: SeShutdownPrivilege 1820 wmic.exe Token: SeDebugPrivilege 1820 wmic.exe Token: SeSystemEnvironmentPrivilege 1820 wmic.exe Token: SeRemoteShutdownPrivilege 1820 wmic.exe Token: SeUndockPrivilege 1820 wmic.exe Token: SeManageVolumePrivilege 1820 wmic.exe Token: 33 1820 wmic.exe Token: 34 1820 wmic.exe Token: 35 1820 wmic.exe Token: 36 1820 wmic.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 772 wrote to memory of 1820 772 Umbral.exe 84 PID 772 wrote to memory of 1820 772 Umbral.exe 84