Analysis
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max time kernel
93s -
max time network
131s -
platform
windows10-2004_x64 -
resource
win10v2004-20250217-en -
resource tags
arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system -
submitted
22-02-2025 01:10
Behavioral task
behavioral1
Sample
Umbral.exe
Resource
win7-20241010-en
windows7-x64
6 signatures
150 seconds
General
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Target
Umbral.exe
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Size
230KB
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MD5
2509db9a461b6619dd1e980090e1c8c0
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SHA1
08c538c781995dc687f454569cea1ed9c3005aed
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SHA256
246922e545aaf7556adf2f7d59771ac73423f7e334c06cac93f5dea27a24f3a2
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SHA512
b5b270221fc52b7803a915439482fed97a1c0faa8a7005f10a4d1bdb6e8b8e6726592f18adec8335914848711d02183d88be0a98693b84339c3c7968be07d201
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SSDEEP
6144:1loZM+rIkd8g+EtXHkv/iD4xQYsJ8e1mYi:XoZtL+EP8xco
Malware Config
Signatures
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Detect Umbral payload 1 IoCs
resource yara_rule behavioral2/memory/3336-1-0x0000018992F40000-0x0000018992F80000-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 10 ip-api.com -
Suspicious use of AdjustPrivilegeToken 43 IoCs
description pid Process Token: SeDebugPrivilege 3336 Umbral.exe Token: SeIncreaseQuotaPrivilege 4436 wmic.exe Token: SeSecurityPrivilege 4436 wmic.exe Token: SeTakeOwnershipPrivilege 4436 wmic.exe Token: SeLoadDriverPrivilege 4436 wmic.exe Token: SeSystemProfilePrivilege 4436 wmic.exe Token: SeSystemtimePrivilege 4436 wmic.exe Token: SeProfSingleProcessPrivilege 4436 wmic.exe Token: SeIncBasePriorityPrivilege 4436 wmic.exe Token: SeCreatePagefilePrivilege 4436 wmic.exe Token: SeBackupPrivilege 4436 wmic.exe Token: SeRestorePrivilege 4436 wmic.exe Token: SeShutdownPrivilege 4436 wmic.exe Token: SeDebugPrivilege 4436 wmic.exe Token: SeSystemEnvironmentPrivilege 4436 wmic.exe Token: SeRemoteShutdownPrivilege 4436 wmic.exe Token: SeUndockPrivilege 4436 wmic.exe Token: SeManageVolumePrivilege 4436 wmic.exe Token: 33 4436 wmic.exe Token: 34 4436 wmic.exe Token: 35 4436 wmic.exe Token: 36 4436 wmic.exe Token: SeIncreaseQuotaPrivilege 4436 wmic.exe Token: SeSecurityPrivilege 4436 wmic.exe Token: SeTakeOwnershipPrivilege 4436 wmic.exe Token: SeLoadDriverPrivilege 4436 wmic.exe Token: SeSystemProfilePrivilege 4436 wmic.exe Token: SeSystemtimePrivilege 4436 wmic.exe Token: SeProfSingleProcessPrivilege 4436 wmic.exe Token: SeIncBasePriorityPrivilege 4436 wmic.exe Token: SeCreatePagefilePrivilege 4436 wmic.exe Token: SeBackupPrivilege 4436 wmic.exe Token: SeRestorePrivilege 4436 wmic.exe Token: SeShutdownPrivilege 4436 wmic.exe Token: SeDebugPrivilege 4436 wmic.exe Token: SeSystemEnvironmentPrivilege 4436 wmic.exe Token: SeRemoteShutdownPrivilege 4436 wmic.exe Token: SeUndockPrivilege 4436 wmic.exe Token: SeManageVolumePrivilege 4436 wmic.exe Token: 33 4436 wmic.exe Token: 34 4436 wmic.exe Token: 35 4436 wmic.exe Token: 36 4436 wmic.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 3336 wrote to memory of 4436 3336 Umbral.exe 86 PID 3336 wrote to memory of 4436 3336 Umbral.exe 86