Analysis Overview
SHA256
c94a81fdf688d220827320e88cc0b89af8690142abe5c602131b6659297c7d24
Threat Level: Known bad
The file zasawuheb.exe was found to be: Known bad.
Malicious Activity Summary
Babuk Locker
Deletes shadow copies
Modifies extensions of user files
Enumerates connected drives
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Interacts with shadow copies
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2021-07-02 02:47
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2021-07-02 02:47
Reported
2021-07-02 02:50
Platform
win7v20210410
Max time kernel
123s
Max time network
125s
Command Line
Signatures
Babuk Locker
Deletes shadow copies
Modifies extensions of user files
| Description | Indicator | Process | Target |
| File opened for modification | C:\Users\Admin\Pictures\ProtectNew.crw.babyk | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\StepCompare.png => C:\Users\Admin\Pictures\StepCompare.png.babyk | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\StepCompare.png.babyk | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\InitializeExport.raw => C:\Users\Admin\Pictures\InitializeExport.raw.babyk | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\InitializeExport.raw.babyk | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\ProtectNew.crw => C:\Users\Admin\Pictures\ProtectNew.crw.babyk | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
Enumerates connected drives
Enumerates physical storage devices
Interacts with shadow copies
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\vssadmin.exe | N/A |
| N/A | N/A | C:\Windows\system32\vssadmin.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeBackupPrivilege | N/A | C:\Windows\system32\vssvc.exe | N/A |
| Token: SeRestorePrivilege | N/A | C:\Windows\system32\vssvc.exe | N/A |
| Token: SeAuditPrivilege | N/A | C:\Windows\system32\vssvc.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe
"C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
C:\Windows\system32\vssadmin.exe
vssadmin.exe delete shadows /all /quiet
C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
C:\Windows\system32\vssadmin.exe
vssadmin.exe delete shadows /all /quiet
Network
Files
memory/1360-59-0x00000000752B1000-0x00000000752B3000-memory.dmp
memory/1248-60-0x0000000000000000-mapping.dmp
memory/316-61-0x0000000000000000-mapping.dmp
memory/1360-62-0x00000000002B0000-0x00000000002C5000-memory.dmp
memory/1360-63-0x0000000000400000-0x0000000000455000-memory.dmp
memory/824-64-0x0000000000000000-mapping.dmp
memory/1584-65-0x0000000000000000-mapping.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2021-07-02 02:47
Reported
2021-07-02 02:50
Platform
win10v20210408
Max time kernel
16s
Max time network
65s
Command Line
Signatures
Babuk Locker
Deletes shadow copies
Modifies extensions of user files
| Description | Indicator | Process | Target |
| File opened for modification | C:\Users\Admin\Pictures\WatchUninstall.tiff | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\GetSubmit.crw => C:\Users\Admin\Pictures\GetSubmit.crw.babyk | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\RegisterSplit.png => C:\Users\Admin\Pictures\RegisterSplit.png.babyk | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\RegisterSplit.png.babyk | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\AssertStop.raw => C:\Users\Admin\Pictures\AssertStop.raw.babyk | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\UseDebug.crw.babyk | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\OpenResume.png => C:\Users\Admin\Pictures\OpenResume.png.babyk | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\OpenResume.png.babyk | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\DisableEnable.tiff | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\EnterComplete.tiff | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\InstallCompress.png.babyk | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\OpenProtect.tiff | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\OpenProtect.tiff => C:\Users\Admin\Pictures\OpenProtect.tiff.babyk | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\WatchUninstall.tiff.babyk | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\EditSet.tiff => C:\Users\Admin\Pictures\EditSet.tiff.babyk | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\EnterComplete.tiff => C:\Users\Admin\Pictures\EnterComplete.tiff.babyk | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\EditSet.tiff.babyk | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\WatchUninstall.tiff => C:\Users\Admin\Pictures\WatchUninstall.tiff.babyk | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\AssertStop.raw.babyk | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\EditSet.tiff | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\GetSubmit.crw.babyk | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\OpenProtect.tiff.babyk | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\UseDebug.crw => C:\Users\Admin\Pictures\UseDebug.crw.babyk | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\DisableEnable.tiff => C:\Users\Admin\Pictures\DisableEnable.tiff.babyk | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\InstallCompress.png => C:\Users\Admin\Pictures\InstallCompress.png.babyk | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\DisableEnable.tiff.babyk | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\EnterComplete.tiff.babyk | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
Enumerates connected drives
Enumerates physical storage devices
Interacts with shadow copies
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\vssadmin.exe | N/A |
| N/A | N/A | C:\Windows\system32\vssadmin.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeBackupPrivilege | N/A | C:\Windows\system32\vssvc.exe | N/A |
| Token: SeRestorePrivilege | N/A | C:\Windows\system32\vssvc.exe | N/A |
| Token: SeAuditPrivilege | N/A | C:\Windows\system32\vssvc.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 528 wrote to memory of 220 | N/A | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | C:\Windows\System32\cmd.exe |
| PID 528 wrote to memory of 220 | N/A | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | C:\Windows\System32\cmd.exe |
| PID 220 wrote to memory of 2060 | N/A | C:\Windows\System32\cmd.exe | C:\Windows\system32\vssadmin.exe |
| PID 220 wrote to memory of 2060 | N/A | C:\Windows\System32\cmd.exe | C:\Windows\system32\vssadmin.exe |
| PID 528 wrote to memory of 2112 | N/A | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | C:\Windows\System32\cmd.exe |
| PID 528 wrote to memory of 2112 | N/A | C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe | C:\Windows\System32\cmd.exe |
| PID 2112 wrote to memory of 2780 | N/A | C:\Windows\System32\cmd.exe | C:\Windows\system32\vssadmin.exe |
| PID 2112 wrote to memory of 2780 | N/A | C:\Windows\System32\cmd.exe | C:\Windows\system32\vssadmin.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe
"C:\Users\Admin\AppData\Local\Temp\zasawuheb.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
C:\Windows\system32\vssadmin.exe
vssadmin.exe delete shadows /all /quiet
C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
C:\Windows\system32\vssadmin.exe
vssadmin.exe delete shadows /all /quiet
Network
Files
memory/528-115-0x0000000000400000-0x0000000000455000-memory.dmp
memory/528-114-0x0000000000510000-0x00000000005BE000-memory.dmp
memory/220-116-0x0000000000000000-mapping.dmp
memory/2060-117-0x0000000000000000-mapping.dmp
memory/2112-118-0x0000000000000000-mapping.dmp
memory/2780-119-0x0000000000000000-mapping.dmp