Analysis
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max time kernel
141s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
19-05-2024 14:33
Behavioral task
behavioral1
Sample
Umbral1.exe
Resource
win7-20240508-en
windows7-x64
14 signatures
150 seconds
General
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Target
Umbral1.exe
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Size
227KB
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MD5
4ca902918277ffd054ecac215e6b99bf
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SHA1
d5d14bcd985e9780289d97478291e4c011417acc
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SHA256
7bc2687b0deb06309fb8b9faf78081f88cd6ee35a05b7a8ea5cfbc3594e7ea7c
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SHA512
90e316478a2e2db35a3c2528b4c4c7d366daef43b11de969fff824750238b5dc706fdad63335635bd590327db3c8683163a2c77345bafd26a6cb2cc0a58ebcd7
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SSDEEP
6144:eloZM+rIkd8g+EtXHkv/iD41ckD2U7X85toGnnGdXb8e1mZi:IoZtL+EP81ckD2U7X85toGnnGpr
Malware Config
Signatures
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Detect Umbral payload 1 IoCs
resource yara_rule behavioral2/memory/380-1-0x000001F4DD680000-0x000001F4DD6C0000-memory.dmp family_umbral -
Suspicious use of AdjustPrivilegeToken 43 IoCs
description pid Process Token: SeDebugPrivilege 380 Umbral1.exe Token: SeIncreaseQuotaPrivilege 3472 wmic.exe Token: SeSecurityPrivilege 3472 wmic.exe Token: SeTakeOwnershipPrivilege 3472 wmic.exe Token: SeLoadDriverPrivilege 3472 wmic.exe Token: SeSystemProfilePrivilege 3472 wmic.exe Token: SeSystemtimePrivilege 3472 wmic.exe Token: SeProfSingleProcessPrivilege 3472 wmic.exe Token: SeIncBasePriorityPrivilege 3472 wmic.exe Token: SeCreatePagefilePrivilege 3472 wmic.exe Token: SeBackupPrivilege 3472 wmic.exe Token: SeRestorePrivilege 3472 wmic.exe Token: SeShutdownPrivilege 3472 wmic.exe Token: SeDebugPrivilege 3472 wmic.exe Token: SeSystemEnvironmentPrivilege 3472 wmic.exe Token: SeRemoteShutdownPrivilege 3472 wmic.exe Token: SeUndockPrivilege 3472 wmic.exe Token: SeManageVolumePrivilege 3472 wmic.exe Token: 33 3472 wmic.exe Token: 34 3472 wmic.exe Token: 35 3472 wmic.exe Token: 36 3472 wmic.exe Token: SeIncreaseQuotaPrivilege 3472 wmic.exe Token: SeSecurityPrivilege 3472 wmic.exe Token: SeTakeOwnershipPrivilege 3472 wmic.exe Token: SeLoadDriverPrivilege 3472 wmic.exe Token: SeSystemProfilePrivilege 3472 wmic.exe Token: SeSystemtimePrivilege 3472 wmic.exe Token: SeProfSingleProcessPrivilege 3472 wmic.exe Token: SeIncBasePriorityPrivilege 3472 wmic.exe Token: SeCreatePagefilePrivilege 3472 wmic.exe Token: SeBackupPrivilege 3472 wmic.exe Token: SeRestorePrivilege 3472 wmic.exe Token: SeShutdownPrivilege 3472 wmic.exe Token: SeDebugPrivilege 3472 wmic.exe Token: SeSystemEnvironmentPrivilege 3472 wmic.exe Token: SeRemoteShutdownPrivilege 3472 wmic.exe Token: SeUndockPrivilege 3472 wmic.exe Token: SeManageVolumePrivilege 3472 wmic.exe Token: 33 3472 wmic.exe Token: 34 3472 wmic.exe Token: 35 3472 wmic.exe Token: 36 3472 wmic.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 380 wrote to memory of 3472 380 Umbral1.exe 91 PID 380 wrote to memory of 3472 380 Umbral1.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\Umbral1.exe"C:\Users\Admin\AppData\Local\Temp\Umbral1.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:380 -
C:\Windows\System32\Wbem\wmic.exe"wmic.exe" csproduct get uuid2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3472
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1424 --field-trial-handle=2272,i,4858140932023865871,5726683989663339295,262144 --variations-seed-version /prefetch:81⤵PID:2820