Analysis
-
max time kernel
112s -
max time network
121s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
24-06-2024 15:13
Behavioral task
behavioral1
Sample
WindowsCRPT.exe
Resource
win7-20240220-en
windows7-x64
4 signatures
150 seconds
General
-
Target
WindowsCRPT.exe
-
Size
236KB
-
MD5
912f84739a9dc20a49c99def03e5551d
-
SHA1
716bfd7315d148975a5d24327e1895ec86bec7aa
-
SHA256
c0cee96676148e2736894cbf46345436be05fb126a4f0c32ff74c74de053b28d
-
SHA512
1804d41780ec0d42e2caee8116e574b593a10c75e585e45666c3b18c2c147644bf2ac218b404dcc6648fbe06a4e82e3bbd328df782069cd6daee4be4c1c9c5ff
-
SSDEEP
6144:BloZM+rIkd8g+EtXHkv/iD48KlH3tW+x2kt/qqfKhb8e1mU4iZ:zoZtL+EP88KlH3tW+x2kt/qqfirBZ
Malware Config
Signatures
-
Detect Umbral payload 1 IoCs
resource yara_rule behavioral2/memory/4820-1-0x0000020141AC0000-0x0000020141B00000-memory.dmp family_umbral -
Suspicious use of AdjustPrivilegeToken 43 IoCs
description pid Process Token: SeDebugPrivilege 4820 WindowsCRPT.exe Token: SeIncreaseQuotaPrivilege 2696 wmic.exe Token: SeSecurityPrivilege 2696 wmic.exe Token: SeTakeOwnershipPrivilege 2696 wmic.exe Token: SeLoadDriverPrivilege 2696 wmic.exe Token: SeSystemProfilePrivilege 2696 wmic.exe Token: SeSystemtimePrivilege 2696 wmic.exe Token: SeProfSingleProcessPrivilege 2696 wmic.exe Token: SeIncBasePriorityPrivilege 2696 wmic.exe Token: SeCreatePagefilePrivilege 2696 wmic.exe Token: SeBackupPrivilege 2696 wmic.exe Token: SeRestorePrivilege 2696 wmic.exe Token: SeShutdownPrivilege 2696 wmic.exe Token: SeDebugPrivilege 2696 wmic.exe Token: SeSystemEnvironmentPrivilege 2696 wmic.exe Token: SeRemoteShutdownPrivilege 2696 wmic.exe Token: SeUndockPrivilege 2696 wmic.exe Token: SeManageVolumePrivilege 2696 wmic.exe Token: 33 2696 wmic.exe Token: 34 2696 wmic.exe Token: 35 2696 wmic.exe Token: 36 2696 wmic.exe Token: SeIncreaseQuotaPrivilege 2696 wmic.exe Token: SeSecurityPrivilege 2696 wmic.exe Token: SeTakeOwnershipPrivilege 2696 wmic.exe Token: SeLoadDriverPrivilege 2696 wmic.exe Token: SeSystemProfilePrivilege 2696 wmic.exe Token: SeSystemtimePrivilege 2696 wmic.exe Token: SeProfSingleProcessPrivilege 2696 wmic.exe Token: SeIncBasePriorityPrivilege 2696 wmic.exe Token: SeCreatePagefilePrivilege 2696 wmic.exe Token: SeBackupPrivilege 2696 wmic.exe Token: SeRestorePrivilege 2696 wmic.exe Token: SeShutdownPrivilege 2696 wmic.exe Token: SeDebugPrivilege 2696 wmic.exe Token: SeSystemEnvironmentPrivilege 2696 wmic.exe Token: SeRemoteShutdownPrivilege 2696 wmic.exe Token: SeUndockPrivilege 2696 wmic.exe Token: SeManageVolumePrivilege 2696 wmic.exe Token: 33 2696 wmic.exe Token: 34 2696 wmic.exe Token: 35 2696 wmic.exe Token: 36 2696 wmic.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 4820 wrote to memory of 2696 4820 WindowsCRPT.exe 92 PID 4820 wrote to memory of 2696 4820 WindowsCRPT.exe 92
Processes
-
C:\Users\Admin\AppData\Local\Temp\WindowsCRPT.exe"C:\Users\Admin\AppData\Local\Temp\WindowsCRPT.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4820 -
C:\Windows\System32\Wbem\wmic.exe"wmic.exe" csproduct get uuid2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2696
-
-
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=4080 --field-trial-handle=2328,i,5873823382323802923,13134441441264702821,262144 --variations-seed-version /prefetch:81⤵PID:5064