Analysis Overview
SHA256
245e191bfe998ad9ef2d6b169af22f3c290e9950234f8ddd0f4a03cb3eebf761
Threat Level: Known bad
The file a499f810c2e52fe9f8adcd5817b2d985 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 behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Interacts with shadow copies
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2021-11-07 10:26
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2021-11-07 10:26
Reported
2021-11-07 10:28
Platform
win7-en-20211014
Max time kernel
119s
Max time network
119s
Command Line
Signatures
Babuk Locker
Deletes shadow copies
Modifies extensions of user files
| Description | Indicator | Process | Target |
| File renamed | C:\Users\Admin\Pictures\ProtectWatch.png => C:\Users\Admin\Pictures\ProtectWatch.png.babyk | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\SendPublish.tiff.babyk | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\StartUnlock.tiff => C:\Users\Admin\Pictures\StartUnlock.tiff.babyk | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\UnprotectExport.png => C:\Users\Admin\Pictures\UnprotectExport.png.babyk | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\CopyMove.tiff.babyk | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\ExitConfirm.tiff => C:\Users\Admin\Pictures\ExitConfirm.tiff.babyk | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\ExitConfirm.tiff.babyk | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\ReceiveDeny.crw => C:\Users\Admin\Pictures\ReceiveDeny.crw.babyk | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\RenameRemove.crw.babyk | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\SendPublish.tiff => C:\Users\Admin\Pictures\SendPublish.tiff.babyk | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\WaitResume.tif => C:\Users\Admin\Pictures\WaitResume.tif.babyk | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\InvokeConvertFrom.png => C:\Users\Admin\Pictures\InvokeConvertFrom.png.babyk | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\SendPublish.tiff | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\StartUnlock.tiff | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\ReceiveDeny.crw.babyk | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\StartUnlock.tiff.babyk | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\WaitResume.tif.babyk | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\CopyMove.tiff | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\InvokeConvertFrom.png.babyk | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\PushSet.crw.babyk | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\PushSet.crw => C:\Users\Admin\Pictures\PushSet.crw.babyk | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\RenameRemove.crw => C:\Users\Admin\Pictures\RenameRemove.crw.babyk | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\UnprotectExport.png.babyk | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\ExitConfirm.tiff | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\CopyMove.tiff => C:\Users\Admin\Pictures\CopyMove.tiff.babyk | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\ProtectWatch.png.babyk | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.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\a499f810c2e52fe9f8adcd5817b2d985.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\a499f810c2e52fe9f8adcd5817b2d985.exe
"C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.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/820-55-0x0000000075821000-0x0000000075823000-memory.dmp
memory/1500-56-0x0000000000000000-mapping.dmp
memory/1652-57-0x0000000000000000-mapping.dmp
memory/1968-58-0x0000000000000000-mapping.dmp
memory/828-59-0x0000000000000000-mapping.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2021-11-07 10:26
Reported
2021-11-07 10:28
Platform
win10-en-20211104
Max time kernel
119s
Max time network
140s
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\InstallLock.png.babyk | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\TestExit.tiff | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\SyncOut.raw => C:\Users\Admin\Pictures\SyncOut.raw.babyk | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\TestExit.tiff => C:\Users\Admin\Pictures\TestExit.tiff.babyk | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\SyncOut.raw.babyk | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\TestExit.tiff.babyk | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\InstallLock.png => C:\Users\Admin\Pictures\InstallLock.png.babyk | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.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\a499f810c2e52fe9f8adcd5817b2d985.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.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 2792 wrote to memory of 2796 | N/A | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | C:\Windows\System32\cmd.exe |
| PID 2792 wrote to memory of 2796 | N/A | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | C:\Windows\System32\cmd.exe |
| PID 2796 wrote to memory of 1012 | N/A | C:\Windows\System32\cmd.exe | C:\Windows\system32\vssadmin.exe |
| PID 2796 wrote to memory of 1012 | N/A | C:\Windows\System32\cmd.exe | C:\Windows\system32\vssadmin.exe |
| PID 2792 wrote to memory of 408 | N/A | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | C:\Windows\System32\cmd.exe |
| PID 2792 wrote to memory of 408 | N/A | C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe | C:\Windows\System32\cmd.exe |
| PID 408 wrote to memory of 824 | N/A | C:\Windows\System32\cmd.exe | C:\Windows\system32\vssadmin.exe |
| PID 408 wrote to memory of 824 | N/A | C:\Windows\System32\cmd.exe | C:\Windows\system32\vssadmin.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe
"C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.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
| Country | Destination | Domain | Proto |
| NL | 104.80.224.57:443 | tcp | |
| US | 8.8.8.8:53 | time.windows.com | udp |
| NL | 40.119.148.38:123 | time.windows.com | udp |
| US | 8.8.8.8:53 | sv.symcb.com | udp |
| US | 93.184.220.29:80 | sv.symcb.com | tcp |
| US | 8.8.8.8:53 | s.symcb.com | udp |
| US | 72.21.91.29:80 | s.symcb.com | tcp |
| US | 8.8.8.8:53 | ts-crl.ws.symantec.com | udp |
| US | 93.184.220.29:80 | ts-crl.ws.symantec.com | tcp |
| US | 93.184.220.29:80 | ts-crl.ws.symantec.com | tcp |
Files
memory/2796-118-0x0000000000000000-mapping.dmp
memory/1012-119-0x0000000000000000-mapping.dmp
memory/408-120-0x0000000000000000-mapping.dmp
memory/824-121-0x0000000000000000-mapping.dmp