Analysis
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max time kernel
175s -
max time network
159s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
01/02/2022, 15:23
Static task
static1
Behavioral task
behavioral1
Sample
f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe
Resource
win10v2004-en-20220112
General
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Target
f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe
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Size
669KB
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MD5
f9e4a20f4929036d88515d002e30afa5
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SHA1
2bbe0b37255ed638e5ae3a0d2e586dbadb8416bc
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SHA256
f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70
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SHA512
5efea74d735df55a4a7bb9bd921209d0c2def8ed9db21deecf7c625ad05b0ec1d27fb0134985d0497b66ab93ad59b1edd3fa0489db02ddd47b82559e5f5cd798
Malware Config
Extracted
C:\HOW_TO_RECOVER_DATA.html
Signatures
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MedusaLocker
Ransomware with several variants first seen in September 2019.
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MedusaLocker Payload 2 IoCs
resource yara_rule behavioral2/files/0x000700000002158f-130.dat family_medusalocker behavioral2/files/0x000700000002158f-131.dat family_medusalocker -
Executes dropped EXE 1 IoCs
pid Process 2996 svhost.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe -
Drops desktop.ini file(s) 1 IoCs
description ioc Process File opened for modification \??\Z:\$RECYCLE.BIN\S-1-5-21-790714498-1549421491-1643397139-1000\desktop.ini f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe -
Enumerates connected drives 3 TTPs 24 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\G: f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe File opened (read-only) \??\O: f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe File opened (read-only) \??\R: f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe File opened (read-only) \??\U: f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe File opened (read-only) \??\V: f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe File opened (read-only) \??\B: f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe File opened (read-only) \??\H: f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe File opened (read-only) \??\K: f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe File opened (read-only) \??\N: f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe File opened (read-only) \??\Q: f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe File opened (read-only) \??\X: f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe File opened (read-only) \??\Z: f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe File opened (read-only) \??\E: f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe File opened (read-only) \??\F: f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe File opened (read-only) \??\I: f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe File opened (read-only) \??\J: f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe File opened (read-only) \??\W: f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe File opened (read-only) \??\Y: f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe File opened (read-only) \??\A: f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe File opened (read-only) \??\L: f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe File opened (read-only) \??\M: f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe File opened (read-only) \??\P: f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe File opened (read-only) \??\S: f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe File opened (read-only) \??\T: f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe -
Suspicious use of AdjustPrivilegeToken 63 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 3696 wmic.exe Token: SeSecurityPrivilege 3696 wmic.exe Token: SeTakeOwnershipPrivilege 3696 wmic.exe Token: SeLoadDriverPrivilege 3696 wmic.exe Token: SeSystemProfilePrivilege 3696 wmic.exe Token: SeSystemtimePrivilege 3696 wmic.exe Token: SeProfSingleProcessPrivilege 3696 wmic.exe Token: SeIncBasePriorityPrivilege 3696 wmic.exe Token: SeCreatePagefilePrivilege 3696 wmic.exe Token: SeBackupPrivilege 3696 wmic.exe Token: SeRestorePrivilege 3696 wmic.exe Token: SeShutdownPrivilege 3696 wmic.exe Token: SeDebugPrivilege 3696 wmic.exe Token: SeSystemEnvironmentPrivilege 3696 wmic.exe Token: SeRemoteShutdownPrivilege 3696 wmic.exe Token: SeUndockPrivilege 3696 wmic.exe Token: SeManageVolumePrivilege 3696 wmic.exe Token: 33 3696 wmic.exe Token: 34 3696 wmic.exe Token: 35 3696 wmic.exe Token: 36 3696 wmic.exe Token: SeIncreaseQuotaPrivilege 3052 wmic.exe Token: SeSecurityPrivilege 3052 wmic.exe Token: SeTakeOwnershipPrivilege 3052 wmic.exe Token: SeLoadDriverPrivilege 3052 wmic.exe Token: SeSystemProfilePrivilege 3052 wmic.exe Token: SeSystemtimePrivilege 3052 wmic.exe Token: SeProfSingleProcessPrivilege 3052 wmic.exe Token: SeIncBasePriorityPrivilege 3052 wmic.exe Token: SeCreatePagefilePrivilege 3052 wmic.exe Token: SeBackupPrivilege 3052 wmic.exe Token: SeRestorePrivilege 3052 wmic.exe Token: SeShutdownPrivilege 3052 wmic.exe Token: SeDebugPrivilege 3052 wmic.exe Token: SeSystemEnvironmentPrivilege 3052 wmic.exe Token: SeRemoteShutdownPrivilege 3052 wmic.exe Token: SeUndockPrivilege 3052 wmic.exe Token: SeManageVolumePrivilege 3052 wmic.exe Token: 33 3052 wmic.exe Token: 34 3052 wmic.exe Token: 35 3052 wmic.exe Token: 36 3052 wmic.exe Token: SeIncreaseQuotaPrivilege 616 wmic.exe Token: SeSecurityPrivilege 616 wmic.exe Token: SeTakeOwnershipPrivilege 616 wmic.exe Token: SeLoadDriverPrivilege 616 wmic.exe Token: SeSystemProfilePrivilege 616 wmic.exe Token: SeSystemtimePrivilege 616 wmic.exe Token: SeProfSingleProcessPrivilege 616 wmic.exe Token: SeIncBasePriorityPrivilege 616 wmic.exe Token: SeCreatePagefilePrivilege 616 wmic.exe Token: SeBackupPrivilege 616 wmic.exe Token: SeRestorePrivilege 616 wmic.exe Token: SeShutdownPrivilege 616 wmic.exe Token: SeDebugPrivilege 616 wmic.exe Token: SeSystemEnvironmentPrivilege 616 wmic.exe Token: SeRemoteShutdownPrivilege 616 wmic.exe Token: SeUndockPrivilege 616 wmic.exe Token: SeManageVolumePrivilege 616 wmic.exe Token: 33 616 wmic.exe Token: 34 616 wmic.exe Token: 35 616 wmic.exe Token: 36 616 wmic.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2220 wrote to memory of 3696 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 57 PID 2220 wrote to memory of 3696 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 57 PID 2220 wrote to memory of 3696 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 57 PID 2220 wrote to memory of 3052 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 60 PID 2220 wrote to memory of 3052 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 60 PID 2220 wrote to memory of 3052 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 60 PID 2220 wrote to memory of 616 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 62 PID 2220 wrote to memory of 616 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 62 PID 2220 wrote to memory of 616 2220 f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe 62 -
System policy modification 1 TTPs 3 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLinkedConnections = "1" f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe"C:\Users\Admin\AppData\Local\Temp\f0164ac8d78b8c4323fb37b1382a9f3ed21228433640380b8d591a5074375e70.exe"1⤵
- Checks whether UAC is enabled
- Drops desktop.ini file(s)
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2220 -
C:\Windows\SysWOW64\Wbem\wmic.exewmic.exe SHADOWCOPY /nointeractive2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3696
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C:\Windows\SysWOW64\Wbem\wmic.exewmic.exe SHADOWCOPY /nointeractive2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3052
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C:\Windows\SysWOW64\Wbem\wmic.exewmic.exe SHADOWCOPY /nointeractive2⤵
- Suspicious use of AdjustPrivilegeToken
PID:616
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C:\Users\Admin\AppData\Roaming\svhost.exeC:\Users\Admin\AppData\Roaming\svhost.exe1⤵
- Executes dropped EXE
PID:2996