Analysis Overview
SHA256
028facff67136de55fe200177a190da625c8e1713b4e7d95bf5fc5412a5afffc
Threat Level: Known bad
The file e_win.bin 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
Interacts with shadow copies
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2021-06-28 14:57
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2021-06-28 14:57
Reported
2021-06-28 15:00
Platform
win10v20210410
Max time kernel
23s
Max time network
113s
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\EditImport.raw.babyk | C:\Users\Admin\AppData\Local\Temp\e_win.bin.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\ExpandConnect.tif => C:\Users\Admin\Pictures\ExpandConnect.tif.babyk | C:\Users\Admin\AppData\Local\Temp\e_win.bin.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\ReceiveSuspend.tiff => C:\Users\Admin\Pictures\ReceiveSuspend.tiff.babyk | C:\Users\Admin\AppData\Local\Temp\e_win.bin.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\ReceiveSuspend.tiff.babyk | C:\Users\Admin\AppData\Local\Temp\e_win.bin.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\ResolveConvertTo.crw => C:\Users\Admin\Pictures\ResolveConvertTo.crw.babyk | C:\Users\Admin\AppData\Local\Temp\e_win.bin.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\ResolveConvertTo.crw.babyk | C:\Users\Admin\AppData\Local\Temp\e_win.bin.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\TestReceive.tif => C:\Users\Admin\Pictures\TestReceive.tif.babyk | C:\Users\Admin\AppData\Local\Temp\e_win.bin.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\UndoShow.tif => C:\Users\Admin\Pictures\UndoShow.tif.babyk | C:\Users\Admin\AppData\Local\Temp\e_win.bin.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\UndoShow.tif.babyk | C:\Users\Admin\AppData\Local\Temp\e_win.bin.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\EditImport.raw => C:\Users\Admin\Pictures\EditImport.raw.babyk | C:\Users\Admin\AppData\Local\Temp\e_win.bin.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\ExpandConnect.tif.babyk | C:\Users\Admin\AppData\Local\Temp\e_win.bin.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\ReceiveSuspend.tiff | C:\Users\Admin\AppData\Local\Temp\e_win.bin.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\TestReceive.tif.babyk | C:\Users\Admin\AppData\Local\Temp\e_win.bin.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\e_win.bin.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e_win.bin.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 4092 wrote to memory of 1756 | N/A | C:\Users\Admin\AppData\Local\Temp\e_win.bin.exe | C:\Windows\System32\cmd.exe |
| PID 4092 wrote to memory of 1756 | N/A | C:\Users\Admin\AppData\Local\Temp\e_win.bin.exe | C:\Windows\System32\cmd.exe |
| PID 1756 wrote to memory of 4072 | N/A | C:\Windows\System32\cmd.exe | C:\Windows\system32\vssadmin.exe |
| PID 1756 wrote to memory of 4072 | N/A | C:\Windows\System32\cmd.exe | C:\Windows\system32\vssadmin.exe |
| PID 4092 wrote to memory of 3144 | N/A | C:\Users\Admin\AppData\Local\Temp\e_win.bin.exe | C:\Windows\System32\cmd.exe |
| PID 4092 wrote to memory of 3144 | N/A | C:\Users\Admin\AppData\Local\Temp\e_win.bin.exe | C:\Windows\System32\cmd.exe |
| PID 3144 wrote to memory of 3084 | N/A | C:\Windows\System32\cmd.exe | C:\Windows\system32\vssadmin.exe |
| PID 3144 wrote to memory of 3084 | N/A | C:\Windows\System32\cmd.exe | C:\Windows\system32\vssadmin.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\e_win.bin.exe
"C:\Users\Admin\AppData\Local\Temp\e_win.bin.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\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\How To Restore Your Files.txt
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/1756-114-0x0000000000000000-mapping.dmp
memory/4072-115-0x0000000000000000-mapping.dmp
C:\Users\Admin\Desktop\How To Restore Your Files.txt
| MD5 | 1cb251ec0d568de6a929b520c4aed8d1 |
| SHA1 | 372ea08cab33e71c02c651dbc83a474d32c676ea |
| SHA256 | 982d9e3eb996f559e633f4d194def3761d909f5a3b647d1a851fead67c32c9d1 |
| SHA512 | eaf2c12742cb8c161bcbd84b032b9bb98999a23282542672ca01cc6edd268f7dce9987ad6b2bc79305634f89d90b90102bcd59a57e7135b8e3ceb93c0597117b |
memory/3144-117-0x0000000000000000-mapping.dmp
memory/3084-118-0x0000000000000000-mapping.dmp