Analysis
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max time kernel
120s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-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 behavioral1/memory/2060-1-0x0000000000D70000-0x0000000000DB0000-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 6 ip-api.com -
Suspicious use of AdjustPrivilegeToken 41 IoCs
description pid Process Token: SeDebugPrivilege 2060 Umbral.exe Token: SeIncreaseQuotaPrivilege 2104 wmic.exe Token: SeSecurityPrivilege 2104 wmic.exe Token: SeTakeOwnershipPrivilege 2104 wmic.exe Token: SeLoadDriverPrivilege 2104 wmic.exe Token: SeSystemProfilePrivilege 2104 wmic.exe Token: SeSystemtimePrivilege 2104 wmic.exe Token: SeProfSingleProcessPrivilege 2104 wmic.exe Token: SeIncBasePriorityPrivilege 2104 wmic.exe Token: SeCreatePagefilePrivilege 2104 wmic.exe Token: SeBackupPrivilege 2104 wmic.exe Token: SeRestorePrivilege 2104 wmic.exe Token: SeShutdownPrivilege 2104 wmic.exe Token: SeDebugPrivilege 2104 wmic.exe Token: SeSystemEnvironmentPrivilege 2104 wmic.exe Token: SeRemoteShutdownPrivilege 2104 wmic.exe Token: SeUndockPrivilege 2104 wmic.exe Token: SeManageVolumePrivilege 2104 wmic.exe Token: 33 2104 wmic.exe Token: 34 2104 wmic.exe Token: 35 2104 wmic.exe Token: SeIncreaseQuotaPrivilege 2104 wmic.exe Token: SeSecurityPrivilege 2104 wmic.exe Token: SeTakeOwnershipPrivilege 2104 wmic.exe Token: SeLoadDriverPrivilege 2104 wmic.exe Token: SeSystemProfilePrivilege 2104 wmic.exe Token: SeSystemtimePrivilege 2104 wmic.exe Token: SeProfSingleProcessPrivilege 2104 wmic.exe Token: SeIncBasePriorityPrivilege 2104 wmic.exe Token: SeCreatePagefilePrivilege 2104 wmic.exe Token: SeBackupPrivilege 2104 wmic.exe Token: SeRestorePrivilege 2104 wmic.exe Token: SeShutdownPrivilege 2104 wmic.exe Token: SeDebugPrivilege 2104 wmic.exe Token: SeSystemEnvironmentPrivilege 2104 wmic.exe Token: SeRemoteShutdownPrivilege 2104 wmic.exe Token: SeUndockPrivilege 2104 wmic.exe Token: SeManageVolumePrivilege 2104 wmic.exe Token: 33 2104 wmic.exe Token: 34 2104 wmic.exe Token: 35 2104 wmic.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2060 wrote to memory of 2104 2060 Umbral.exe 30 PID 2060 wrote to memory of 2104 2060 Umbral.exe 30 PID 2060 wrote to memory of 2104 2060 Umbral.exe 30