Analysis
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max time kernel
143s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
12-02-2024 02:09
Behavioral task
behavioral1
Sample
Umbral.exe
Resource
win7-20231215-en
windows7-x64
4 signatures
150 seconds
General
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Target
Umbral.exe
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Size
231KB
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MD5
a270d4041c245aec5deeed971fba0e6e
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SHA1
b9cacd5e11108f37def65b4f17281fa658dde5ef
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SHA256
34ab1f6b7597b68d9799a803d61a8b07ab4221a887cc038c7dff132d857c26f1
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SHA512
8c6361c0aca08058bbc3862801247c4516f99bb0935e05ad314e4ee0f9d5eefb41017ba28e5743188b9c68c6495f6a7e3142152aa40737d6955f80b81f626453
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SSDEEP
6144:RloZM+rIkd8g+EtXHkv/iD4CiRrQBPUon9WvRsY9jfy8e1mFmi:joZtL+EP8DRrQBPUon9WvRsY9MeL
Malware Config
Signatures
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Detect Umbral payload 1 IoCs
resource yara_rule behavioral2/memory/2180-0-0x0000019FE4C40000-0x0000019FE4C80000-memory.dmp family_umbral -
Suspicious use of AdjustPrivilegeToken 43 IoCs
description pid Process Token: SeDebugPrivilege 2180 Umbral.exe Token: SeIncreaseQuotaPrivilege 3228 wmic.exe Token: SeSecurityPrivilege 3228 wmic.exe Token: SeTakeOwnershipPrivilege 3228 wmic.exe Token: SeLoadDriverPrivilege 3228 wmic.exe Token: SeSystemProfilePrivilege 3228 wmic.exe Token: SeSystemtimePrivilege 3228 wmic.exe Token: SeProfSingleProcessPrivilege 3228 wmic.exe Token: SeIncBasePriorityPrivilege 3228 wmic.exe Token: SeCreatePagefilePrivilege 3228 wmic.exe Token: SeBackupPrivilege 3228 wmic.exe Token: SeRestorePrivilege 3228 wmic.exe Token: SeShutdownPrivilege 3228 wmic.exe Token: SeDebugPrivilege 3228 wmic.exe Token: SeSystemEnvironmentPrivilege 3228 wmic.exe Token: SeRemoteShutdownPrivilege 3228 wmic.exe Token: SeUndockPrivilege 3228 wmic.exe Token: SeManageVolumePrivilege 3228 wmic.exe Token: 33 3228 wmic.exe Token: 34 3228 wmic.exe Token: 35 3228 wmic.exe Token: 36 3228 wmic.exe Token: SeIncreaseQuotaPrivilege 3228 wmic.exe Token: SeSecurityPrivilege 3228 wmic.exe Token: SeTakeOwnershipPrivilege 3228 wmic.exe Token: SeLoadDriverPrivilege 3228 wmic.exe Token: SeSystemProfilePrivilege 3228 wmic.exe Token: SeSystemtimePrivilege 3228 wmic.exe Token: SeProfSingleProcessPrivilege 3228 wmic.exe Token: SeIncBasePriorityPrivilege 3228 wmic.exe Token: SeCreatePagefilePrivilege 3228 wmic.exe Token: SeBackupPrivilege 3228 wmic.exe Token: SeRestorePrivilege 3228 wmic.exe Token: SeShutdownPrivilege 3228 wmic.exe Token: SeDebugPrivilege 3228 wmic.exe Token: SeSystemEnvironmentPrivilege 3228 wmic.exe Token: SeRemoteShutdownPrivilege 3228 wmic.exe Token: SeUndockPrivilege 3228 wmic.exe Token: SeManageVolumePrivilege 3228 wmic.exe Token: 33 3228 wmic.exe Token: 34 3228 wmic.exe Token: 35 3228 wmic.exe Token: 36 3228 wmic.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 2180 wrote to memory of 3228 2180 Umbral.exe 85 PID 2180 wrote to memory of 3228 2180 Umbral.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\Umbral.exe"C:\Users\Admin\AppData\Local\Temp\Umbral.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2180 -
C:\Windows\System32\Wbem\wmic.exe"wmic.exe" csproduct get uuid2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3228
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