Analysis
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max time kernel
182s -
max time network
193s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
05/12/2022, 14:29
Static task
static1
Behavioral task
behavioral1
Sample
b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe
Resource
win7-20220812-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe
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Size
833KB
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MD5
37a81c2cb209704e0553693476eaf508
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SHA1
985a4598ee04160dc04e40210e4c1ae6429ecdfd
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SHA256
b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec
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SHA512
d2acb33198cfffda5fe163f588e42649b9d98f076f96859f80d672935cf9470bb502fb944391eed2f6b48447bd3395d4c181829cd325493a64d9eb2acd3d49ea
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SSDEEP
12288:kYDjlhlkyaS0iunBm1gCU6kvIqnnZ8uhqgr9sEs2EyhKh4Sf:k+5/0iunUzUBvIqnuusU3Sf
Score
8/10
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 1148 winsdk.exe -
Deletes itself 1 IoCs
pid Process 940 cmd.exe -
Loads dropped DLL 2 IoCs
pid Process 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\KeyBoardA.dat winsdk.exe -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files (x86)\winsdk.exe b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe File opened for modification C:\Program Files (x86)\winsdk.exe b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of AdjustPrivilegeToken 60 IoCs
description pid Process Token: 1 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe Token: SeCreateTokenPrivilege 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe Token: SeAssignPrimaryTokenPrivilege 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe Token: SeLockMemoryPrivilege 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe Token: SeIncreaseQuotaPrivilege 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe Token: SeMachineAccountPrivilege 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe Token: SeTcbPrivilege 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe Token: SeSecurityPrivilege 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe Token: SeTakeOwnershipPrivilege 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe Token: SeLoadDriverPrivilege 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe Token: SeSystemProfilePrivilege 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe Token: SeSystemtimePrivilege 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe Token: SeProfSingleProcessPrivilege 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe Token: SeIncBasePriorityPrivilege 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe Token: SeCreatePagefilePrivilege 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe Token: SeCreatePermanentPrivilege 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe Token: SeBackupPrivilege 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe Token: SeRestorePrivilege 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe Token: SeShutdownPrivilege 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe Token: SeDebugPrivilege 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe Token: SeAuditPrivilege 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe Token: SeSystemEnvironmentPrivilege 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe Token: SeChangeNotifyPrivilege 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe Token: SeRemoteShutdownPrivilege 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe Token: SeUndockPrivilege 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe Token: SeSyncAgentPrivilege 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe Token: SeEnableDelegationPrivilege 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe Token: SeManageVolumePrivilege 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe Token: SeImpersonatePrivilege 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe Token: SeCreateGlobalPrivilege 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe Token: 1 1148 winsdk.exe Token: SeCreateTokenPrivilege 1148 winsdk.exe Token: SeAssignPrimaryTokenPrivilege 1148 winsdk.exe Token: SeLockMemoryPrivilege 1148 winsdk.exe Token: SeIncreaseQuotaPrivilege 1148 winsdk.exe Token: SeMachineAccountPrivilege 1148 winsdk.exe Token: SeTcbPrivilege 1148 winsdk.exe Token: SeSecurityPrivilege 1148 winsdk.exe Token: SeTakeOwnershipPrivilege 1148 winsdk.exe Token: SeLoadDriverPrivilege 1148 winsdk.exe Token: SeSystemProfilePrivilege 1148 winsdk.exe Token: SeSystemtimePrivilege 1148 winsdk.exe Token: SeProfSingleProcessPrivilege 1148 winsdk.exe Token: SeIncBasePriorityPrivilege 1148 winsdk.exe Token: SeCreatePagefilePrivilege 1148 winsdk.exe Token: SeCreatePermanentPrivilege 1148 winsdk.exe Token: SeBackupPrivilege 1148 winsdk.exe Token: SeRestorePrivilege 1148 winsdk.exe Token: SeShutdownPrivilege 1148 winsdk.exe Token: SeDebugPrivilege 1148 winsdk.exe Token: SeAuditPrivilege 1148 winsdk.exe Token: SeSystemEnvironmentPrivilege 1148 winsdk.exe Token: SeChangeNotifyPrivilege 1148 winsdk.exe Token: SeRemoteShutdownPrivilege 1148 winsdk.exe Token: SeUndockPrivilege 1148 winsdk.exe Token: SeSyncAgentPrivilege 1148 winsdk.exe Token: SeEnableDelegationPrivilege 1148 winsdk.exe Token: SeManageVolumePrivilege 1148 winsdk.exe Token: SeImpersonatePrivilege 1148 winsdk.exe Token: SeCreateGlobalPrivilege 1148 winsdk.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe 1148 winsdk.exe 1148 winsdk.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 304 wrote to memory of 1148 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe 27 PID 304 wrote to memory of 1148 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe 27 PID 304 wrote to memory of 1148 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe 27 PID 304 wrote to memory of 1148 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe 27 PID 304 wrote to memory of 940 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe 28 PID 304 wrote to memory of 940 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe 28 PID 304 wrote to memory of 940 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe 28 PID 304 wrote to memory of 940 304 b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe"C:\Users\Admin\AppData\Local\Temp\b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe"1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:304 -
C:\Program Files (x86)\winsdk.exe"C:\Program Files (x86)\winsdk.exe"2⤵
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1148
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C:\Windows\SysWOW64\cmd.execmd /c del "C:\Users\Admin\AppData\Local\Temp\b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec.exe"2⤵
- Deletes itself
PID:940
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
833KB
MD537a81c2cb209704e0553693476eaf508
SHA1985a4598ee04160dc04e40210e4c1ae6429ecdfd
SHA256b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec
SHA512d2acb33198cfffda5fe163f588e42649b9d98f076f96859f80d672935cf9470bb502fb944391eed2f6b48447bd3395d4c181829cd325493a64d9eb2acd3d49ea
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Filesize
833KB
MD537a81c2cb209704e0553693476eaf508
SHA1985a4598ee04160dc04e40210e4c1ae6429ecdfd
SHA256b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec
SHA512d2acb33198cfffda5fe163f588e42649b9d98f076f96859f80d672935cf9470bb502fb944391eed2f6b48447bd3395d4c181829cd325493a64d9eb2acd3d49ea
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Filesize
833KB
MD537a81c2cb209704e0553693476eaf508
SHA1985a4598ee04160dc04e40210e4c1ae6429ecdfd
SHA256b3ac6265b9feb6f4a1a76924b1523a74ec0ae8b1f2ab6b94e57478ae40f842ec
SHA512d2acb33198cfffda5fe163f588e42649b9d98f076f96859f80d672935cf9470bb502fb944391eed2f6b48447bd3395d4c181829cd325493a64d9eb2acd3d49ea