Analysis
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max time kernel
95s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
01-10-2024 19:33
Behavioral task
behavioral1
Sample
Umbral.exe
Resource
win7-20240903-en
windows7-x64
5 signatures
150 seconds
General
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Target
Umbral.exe
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Size
232KB
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MD5
37974e87e6ab2f57a45f6a59f774d5a0
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SHA1
af8b0ce0a30c70f23ec081cc9c713f200c931241
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SHA256
d49509d2f27099e6884319fc50b7cecd8cf837ef1af03d9516a558e54bc7b8e8
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SHA512
1f17d68a77894f28ab09fbec5d9f499425523512de19b81829dda7b613ddd7a2fadc937ed3933f28048a45cc678a79813ad0e767f6585f60286fd45db44f6344
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SSDEEP
6144:IloZM+rIkd8g+EtXHkv/iD47xX5kuMzvE5lwOffumn/x0i8e1mi5i:WoZtL+EP8795kuMzvE5lwOffumnrpg
Malware Config
Signatures
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Detect Umbral payload 1 IoCs
resource yara_rule behavioral2/memory/388-1-0x0000016107F30000-0x0000016107F70000-memory.dmp family_umbral -
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 43 IoCs
description pid Process Token: SeDebugPrivilege 388 Umbral.exe Token: SeIncreaseQuotaPrivilege 2068 wmic.exe Token: SeSecurityPrivilege 2068 wmic.exe Token: SeTakeOwnershipPrivilege 2068 wmic.exe Token: SeLoadDriverPrivilege 2068 wmic.exe Token: SeSystemProfilePrivilege 2068 wmic.exe Token: SeSystemtimePrivilege 2068 wmic.exe Token: SeProfSingleProcessPrivilege 2068 wmic.exe Token: SeIncBasePriorityPrivilege 2068 wmic.exe Token: SeCreatePagefilePrivilege 2068 wmic.exe Token: SeBackupPrivilege 2068 wmic.exe Token: SeRestorePrivilege 2068 wmic.exe Token: SeShutdownPrivilege 2068 wmic.exe Token: SeDebugPrivilege 2068 wmic.exe Token: SeSystemEnvironmentPrivilege 2068 wmic.exe Token: SeRemoteShutdownPrivilege 2068 wmic.exe Token: SeUndockPrivilege 2068 wmic.exe Token: SeManageVolumePrivilege 2068 wmic.exe Token: 33 2068 wmic.exe Token: 34 2068 wmic.exe Token: 35 2068 wmic.exe Token: 36 2068 wmic.exe Token: SeIncreaseQuotaPrivilege 2068 wmic.exe Token: SeSecurityPrivilege 2068 wmic.exe Token: SeTakeOwnershipPrivilege 2068 wmic.exe Token: SeLoadDriverPrivilege 2068 wmic.exe Token: SeSystemProfilePrivilege 2068 wmic.exe Token: SeSystemtimePrivilege 2068 wmic.exe Token: SeProfSingleProcessPrivilege 2068 wmic.exe Token: SeIncBasePriorityPrivilege 2068 wmic.exe Token: SeCreatePagefilePrivilege 2068 wmic.exe Token: SeBackupPrivilege 2068 wmic.exe Token: SeRestorePrivilege 2068 wmic.exe Token: SeShutdownPrivilege 2068 wmic.exe Token: SeDebugPrivilege 2068 wmic.exe Token: SeSystemEnvironmentPrivilege 2068 wmic.exe Token: SeRemoteShutdownPrivilege 2068 wmic.exe Token: SeUndockPrivilege 2068 wmic.exe Token: SeManageVolumePrivilege 2068 wmic.exe Token: 33 2068 wmic.exe Token: 34 2068 wmic.exe Token: 35 2068 wmic.exe Token: 36 2068 wmic.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 388 wrote to memory of 2068 388 Umbral.exe 82 PID 388 wrote to memory of 2068 388 Umbral.exe 82