Analysis
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max time kernel
69s -
max time network
70s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
18/10/2024, 16:37
Behavioral task
behavioral1
Sample
Umbral.bin.exe
Resource
win7-20240903-en
windows7-x64
5 signatures
150 seconds
General
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Target
Umbral.bin.exe
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Size
232KB
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MD5
1377d5688f3780885e77a0ec534be5b7
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SHA1
91628df86ab2fdf204781d970d0635103a01aa1d
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SHA256
f925d39bf8715d44d8558e287076c2783318767b3dda49715147cb38a762c5a2
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SHA512
b4fb4e7d708fc1167d193e44ce8b44187e2ac69b8bfa522f7b2e8d9871eebefc6b60e9521aa7e444c3c21b986112b4c2f91ced78d2a9b2bc79b569817c4564c2
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SSDEEP
6144:KloZM+rIkd8g+EtXHkv/iD4/fvrsyVtGDTOMdWDjo+b8e1mNoi:0oZtL+EP8/fvrsyVtGDTOMdWDvQ
Malware Config
Signatures
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Detect Umbral payload 1 IoCs
resource yara_rule behavioral2/memory/4904-1-0x0000018623F90000-0x0000018623FD0000-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 7 ip-api.com -
Suspicious use of AdjustPrivilegeToken 43 IoCs
description pid Process Token: SeDebugPrivilege 4904 Umbral.bin.exe Token: SeIncreaseQuotaPrivilege 2284 wmic.exe Token: SeSecurityPrivilege 2284 wmic.exe Token: SeTakeOwnershipPrivilege 2284 wmic.exe Token: SeLoadDriverPrivilege 2284 wmic.exe Token: SeSystemProfilePrivilege 2284 wmic.exe Token: SeSystemtimePrivilege 2284 wmic.exe Token: SeProfSingleProcessPrivilege 2284 wmic.exe Token: SeIncBasePriorityPrivilege 2284 wmic.exe Token: SeCreatePagefilePrivilege 2284 wmic.exe Token: SeBackupPrivilege 2284 wmic.exe Token: SeRestorePrivilege 2284 wmic.exe Token: SeShutdownPrivilege 2284 wmic.exe Token: SeDebugPrivilege 2284 wmic.exe Token: SeSystemEnvironmentPrivilege 2284 wmic.exe Token: SeRemoteShutdownPrivilege 2284 wmic.exe Token: SeUndockPrivilege 2284 wmic.exe Token: SeManageVolumePrivilege 2284 wmic.exe Token: 33 2284 wmic.exe Token: 34 2284 wmic.exe Token: 35 2284 wmic.exe Token: 36 2284 wmic.exe Token: SeIncreaseQuotaPrivilege 2284 wmic.exe Token: SeSecurityPrivilege 2284 wmic.exe Token: SeTakeOwnershipPrivilege 2284 wmic.exe Token: SeLoadDriverPrivilege 2284 wmic.exe Token: SeSystemProfilePrivilege 2284 wmic.exe Token: SeSystemtimePrivilege 2284 wmic.exe Token: SeProfSingleProcessPrivilege 2284 wmic.exe Token: SeIncBasePriorityPrivilege 2284 wmic.exe Token: SeCreatePagefilePrivilege 2284 wmic.exe Token: SeBackupPrivilege 2284 wmic.exe Token: SeRestorePrivilege 2284 wmic.exe Token: SeShutdownPrivilege 2284 wmic.exe Token: SeDebugPrivilege 2284 wmic.exe Token: SeSystemEnvironmentPrivilege 2284 wmic.exe Token: SeRemoteShutdownPrivilege 2284 wmic.exe Token: SeUndockPrivilege 2284 wmic.exe Token: SeManageVolumePrivilege 2284 wmic.exe Token: 33 2284 wmic.exe Token: 34 2284 wmic.exe Token: 35 2284 wmic.exe Token: 36 2284 wmic.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 4904 wrote to memory of 2284 4904 Umbral.bin.exe 85 PID 4904 wrote to memory of 2284 4904 Umbral.bin.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\Umbral.bin.exe"C:\Users\Admin\AppData\Local\Temp\Umbral.bin.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4904 -
C:\Windows\System32\Wbem\wmic.exe"wmic.exe" csproduct get uuid2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2284
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:3804