Analysis
-
max time kernel
10s -
max time network
11s -
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 10:47
Behavioral task
behavioral1
Sample
Umbral.exe
Resource
win7-20240903-en
windows7-x64
6 signatures
150 seconds
General
-
Target
Umbral.exe
-
Size
495KB
-
MD5
582bc7b05114af523db760bc2380ec80
-
SHA1
54b26ee9d7cd0f922d5e851696099c4b6fa849f2
-
SHA256
751dee488d8148db816da1f2326e37e579c116f76e4f8cdf21a25d1f85e74ffe
-
SHA512
9643b236e15cb9364a1e9cdd322d16d101a9ee804f958565c95037e18fae94d687c2c0c6e7cb776b00aac55e052ef1decce46189b35ffdce8dca74f910b39777
-
SSDEEP
6144:vloZM+rIkd8g+EtXHkv/iD4zyPvRDAmB5KW/Cwhl0zjb8e1m0iDc:NoZtL+EP8zyPvRDAmB5KW/Cwhl076
Malware Config
Signatures
-
Detect Umbral payload 1 IoCs
resource yara_rule behavioral2/memory/4160-1-0x0000020154420000-0x00000201544A2000-memory.dmp family_umbral -
Umbral family
-
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 7 ip-api.com -
Suspicious use of AdjustPrivilegeToken 43 IoCs
description pid Process Token: SeDebugPrivilege 4160 Umbral.exe Token: SeIncreaseQuotaPrivilege 2984 wmic.exe Token: SeSecurityPrivilege 2984 wmic.exe Token: SeTakeOwnershipPrivilege 2984 wmic.exe Token: SeLoadDriverPrivilege 2984 wmic.exe Token: SeSystemProfilePrivilege 2984 wmic.exe Token: SeSystemtimePrivilege 2984 wmic.exe Token: SeProfSingleProcessPrivilege 2984 wmic.exe Token: SeIncBasePriorityPrivilege 2984 wmic.exe Token: SeCreatePagefilePrivilege 2984 wmic.exe Token: SeBackupPrivilege 2984 wmic.exe Token: SeRestorePrivilege 2984 wmic.exe Token: SeShutdownPrivilege 2984 wmic.exe Token: SeDebugPrivilege 2984 wmic.exe Token: SeSystemEnvironmentPrivilege 2984 wmic.exe Token: SeRemoteShutdownPrivilege 2984 wmic.exe Token: SeUndockPrivilege 2984 wmic.exe Token: SeManageVolumePrivilege 2984 wmic.exe Token: 33 2984 wmic.exe Token: 34 2984 wmic.exe Token: 35 2984 wmic.exe Token: 36 2984 wmic.exe Token: SeIncreaseQuotaPrivilege 2984 wmic.exe Token: SeSecurityPrivilege 2984 wmic.exe Token: SeTakeOwnershipPrivilege 2984 wmic.exe Token: SeLoadDriverPrivilege 2984 wmic.exe Token: SeSystemProfilePrivilege 2984 wmic.exe Token: SeSystemtimePrivilege 2984 wmic.exe Token: SeProfSingleProcessPrivilege 2984 wmic.exe Token: SeIncBasePriorityPrivilege 2984 wmic.exe Token: SeCreatePagefilePrivilege 2984 wmic.exe Token: SeBackupPrivilege 2984 wmic.exe Token: SeRestorePrivilege 2984 wmic.exe Token: SeShutdownPrivilege 2984 wmic.exe Token: SeDebugPrivilege 2984 wmic.exe Token: SeSystemEnvironmentPrivilege 2984 wmic.exe Token: SeRemoteShutdownPrivilege 2984 wmic.exe Token: SeUndockPrivilege 2984 wmic.exe Token: SeManageVolumePrivilege 2984 wmic.exe Token: 33 2984 wmic.exe Token: 34 2984 wmic.exe Token: 35 2984 wmic.exe Token: 36 2984 wmic.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 4160 wrote to memory of 2984 4160 Umbral.exe 84 PID 4160 wrote to memory of 2984 4160 Umbral.exe 84