Analysis
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max time kernel
172s -
max time network
176s -
platform
windows10-2004_x64 -
resource
win10v2004-20220331-en -
submitted
08-04-2022 10:50
Static task
static1
Behavioral task
behavioral1
Sample
dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe
Resource
win7-20220331-en
Behavioral task
behavioral2
Sample
dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe
Resource
win10v2004-20220331-en
General
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Target
dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe
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Size
669KB
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MD5
3a43bb428e23e8059c9a3fbde9707de2
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SHA1
edbca9b297c2ce981bcb6c8a20107c204045d523
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SHA256
dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13
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SHA512
c02648de56128a758873952ffcac982bf4463bc9c7cab9605e2f0cf77eb4304e39a9076494f4127718356e4d5250084353b27459c40ae8f30ac7cb5150f2ae1e
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/0x0007000000021e1f-127.dat family_medusalocker behavioral2/files/0x0007000000021e1f-128.dat family_medusalocker -
Executes dropped EXE 1 IoCs
pid Process 3284 svhost.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe -
Drops desktop.ini file(s) 1 IoCs
description ioc Process File opened for modification \??\Z:\$RECYCLE.BIN\S-1-5-21-1082102374-1487407228-1886994731-1000\desktop.ini dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.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) \??\L: dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe File opened (read-only) \??\M: dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe File opened (read-only) \??\N: dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe File opened (read-only) \??\O: dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe File opened (read-only) \??\R: dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe File opened (read-only) \??\Z: dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe File opened (read-only) \??\B: dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe File opened (read-only) \??\I: dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe File opened (read-only) \??\H: dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe File opened (read-only) \??\P: dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe File opened (read-only) \??\S: dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe File opened (read-only) \??\T: dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe File opened (read-only) \??\V: dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe File opened (read-only) \??\W: dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe File opened (read-only) \??\F: dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe File opened (read-only) \??\G: dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe File opened (read-only) \??\X: dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe File opened (read-only) \??\K: dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe File opened (read-only) \??\Q: dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe File opened (read-only) \??\A: dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe File opened (read-only) \??\E: dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe File opened (read-only) \??\Y: dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe File opened (read-only) \??\J: dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe File opened (read-only) \??\U: dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.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 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe -
Suspicious use of AdjustPrivilegeToken 63 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 4436 wmic.exe Token: SeSecurityPrivilege 4436 wmic.exe Token: SeTakeOwnershipPrivilege 4436 wmic.exe Token: SeLoadDriverPrivilege 4436 wmic.exe Token: SeSystemProfilePrivilege 4436 wmic.exe Token: SeSystemtimePrivilege 4436 wmic.exe Token: SeProfSingleProcessPrivilege 4436 wmic.exe Token: SeIncBasePriorityPrivilege 4436 wmic.exe Token: SeCreatePagefilePrivilege 4436 wmic.exe Token: SeBackupPrivilege 4436 wmic.exe Token: SeRestorePrivilege 4436 wmic.exe Token: SeShutdownPrivilege 4436 wmic.exe Token: SeDebugPrivilege 4436 wmic.exe Token: SeSystemEnvironmentPrivilege 4436 wmic.exe Token: SeRemoteShutdownPrivilege 4436 wmic.exe Token: SeUndockPrivilege 4436 wmic.exe Token: SeManageVolumePrivilege 4436 wmic.exe Token: 33 4436 wmic.exe Token: 34 4436 wmic.exe Token: 35 4436 wmic.exe Token: 36 4436 wmic.exe Token: SeIncreaseQuotaPrivilege 1440 wmic.exe Token: SeSecurityPrivilege 1440 wmic.exe Token: SeTakeOwnershipPrivilege 1440 wmic.exe Token: SeLoadDriverPrivilege 1440 wmic.exe Token: SeSystemProfilePrivilege 1440 wmic.exe Token: SeSystemtimePrivilege 1440 wmic.exe Token: SeProfSingleProcessPrivilege 1440 wmic.exe Token: SeIncBasePriorityPrivilege 1440 wmic.exe Token: SeCreatePagefilePrivilege 1440 wmic.exe Token: SeBackupPrivilege 1440 wmic.exe Token: SeRestorePrivilege 1440 wmic.exe Token: SeShutdownPrivilege 1440 wmic.exe Token: SeDebugPrivilege 1440 wmic.exe Token: SeSystemEnvironmentPrivilege 1440 wmic.exe Token: SeRemoteShutdownPrivilege 1440 wmic.exe Token: SeUndockPrivilege 1440 wmic.exe Token: SeManageVolumePrivilege 1440 wmic.exe Token: 33 1440 wmic.exe Token: 34 1440 wmic.exe Token: 35 1440 wmic.exe Token: 36 1440 wmic.exe Token: SeIncreaseQuotaPrivilege 2900 wmic.exe Token: SeSecurityPrivilege 2900 wmic.exe Token: SeTakeOwnershipPrivilege 2900 wmic.exe Token: SeLoadDriverPrivilege 2900 wmic.exe Token: SeSystemProfilePrivilege 2900 wmic.exe Token: SeSystemtimePrivilege 2900 wmic.exe Token: SeProfSingleProcessPrivilege 2900 wmic.exe Token: SeIncBasePriorityPrivilege 2900 wmic.exe Token: SeCreatePagefilePrivilege 2900 wmic.exe Token: SeBackupPrivilege 2900 wmic.exe Token: SeRestorePrivilege 2900 wmic.exe Token: SeShutdownPrivilege 2900 wmic.exe Token: SeDebugPrivilege 2900 wmic.exe Token: SeSystemEnvironmentPrivilege 2900 wmic.exe Token: SeRemoteShutdownPrivilege 2900 wmic.exe Token: SeUndockPrivilege 2900 wmic.exe Token: SeManageVolumePrivilege 2900 wmic.exe Token: 33 2900 wmic.exe Token: 34 2900 wmic.exe Token: 35 2900 wmic.exe Token: 36 2900 wmic.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 1444 wrote to memory of 4436 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 83 PID 1444 wrote to memory of 4436 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 83 PID 1444 wrote to memory of 4436 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 83 PID 1444 wrote to memory of 1440 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 85 PID 1444 wrote to memory of 1440 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 85 PID 1444 wrote to memory of 1440 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 85 PID 1444 wrote to memory of 2900 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 87 PID 1444 wrote to memory of 2900 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 87 PID 1444 wrote to memory of 2900 1444 dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe 87 -
System policy modification 1 TTPs 3 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLinkedConnections = "1" dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.exe"C:\Users\Admin\AppData\Local\Temp\dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13.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:1444 -
C:\Windows\SysWOW64\Wbem\wmic.exewmic.exe SHADOWCOPY /nointeractive2⤵
- Suspicious use of AdjustPrivilegeToken
PID:4436
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C:\Windows\SysWOW64\Wbem\wmic.exewmic.exe SHADOWCOPY /nointeractive2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1440
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C:\Windows\SysWOW64\Wbem\wmic.exewmic.exe SHADOWCOPY /nointeractive2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2900
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C:\Users\Admin\AppData\Roaming\svhost.exeC:\Users\Admin\AppData\Roaming\svhost.exe1⤵
- Executes dropped EXE
PID:3284
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
669KB
MD53a43bb428e23e8059c9a3fbde9707de2
SHA1edbca9b297c2ce981bcb6c8a20107c204045d523
SHA256dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13
SHA512c02648de56128a758873952ffcac982bf4463bc9c7cab9605e2f0cf77eb4304e39a9076494f4127718356e4d5250084353b27459c40ae8f30ac7cb5150f2ae1e
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Filesize
669KB
MD53a43bb428e23e8059c9a3fbde9707de2
SHA1edbca9b297c2ce981bcb6c8a20107c204045d523
SHA256dbac4f2fffcb4e09aad772895647e8f161b1ac713592fe47c5e8207c85722f13
SHA512c02648de56128a758873952ffcac982bf4463bc9c7cab9605e2f0cf77eb4304e39a9076494f4127718356e4d5250084353b27459c40ae8f30ac7cb5150f2ae1e