Analysis Overview
SHA256
b4be6b8acda97f36c448365751d5c9a9e1b91f47cedfde79e1de258413c3de71
Threat Level: Known bad
The file b4be6b8acda97f36c448365751d5c9a9e1b91f47cedfde79e1de258413c3de71.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
Interacts with shadow copies
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2021-04-28 04:42
Signatures
Analysis: behavioral2
Detonation Overview
Submitted
2021-04-28 04:42
Reported
2021-04-28 04:46
Platform
win10v20210410
Max time kernel
14s
Max time network
115s
Command Line
Signatures
Babuk Locker
Deletes shadow copies
Modifies extensions of user files
| Description | Indicator | Process | Target |
| File renamed | C:\Users\Admin\Pictures\BackupStop.raw => C:\Users\Admin\Pictures\BackupStop.raw.babyk | C:\Users\Admin\AppData\Local\Temp\b4be6b8acda97f36c448365751d5c9a9e1b91f47cedfde79e1de258413c3de71.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\BackupStop.raw.babyk | C:\Users\Admin\AppData\Local\Temp\b4be6b8acda97f36c448365751d5c9a9e1b91f47cedfde79e1de258413c3de71.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\SelectMeasure.crw => C:\Users\Admin\Pictures\SelectMeasure.crw.babyk | C:\Users\Admin\AppData\Local\Temp\b4be6b8acda97f36c448365751d5c9a9e1b91f47cedfde79e1de258413c3de71.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\SelectMeasure.crw.babyk | C:\Users\Admin\AppData\Local\Temp\b4be6b8acda97f36c448365751d5c9a9e1b91f47cedfde79e1de258413c3de71.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\b4be6b8acda97f36c448365751d5c9a9e1b91f47cedfde79e1de258413c3de71.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b4be6b8acda97f36c448365751d5c9a9e1b91f47cedfde79e1de258413c3de71.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\b4be6b8acda97f36c448365751d5c9a9e1b91f47cedfde79e1de258413c3de71.exe
"C:\Users\Admin\AppData\Local\Temp\b4be6b8acda97f36c448365751d5c9a9e1b91f47cedfde79e1de258413c3de71.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/3200-114-0x0000000000000000-mapping.dmp
memory/2404-115-0x0000000000000000-mapping.dmp
memory/3416-116-0x0000000000000000-mapping.dmp
memory/3936-117-0x0000000000000000-mapping.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2021-04-28 04:42
Reported
2021-04-28 04:45
Platform
win7v20210410
Max time kernel
8s
Max time network
13s
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\SelectCheckpoint.crw.babyk | C:\Users\Admin\AppData\Local\Temp\b4be6b8acda97f36c448365751d5c9a9e1b91f47cedfde79e1de258413c3de71.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\SelectCheckpoint.crw => C:\Users\Admin\Pictures\SelectCheckpoint.crw.babyk | C:\Users\Admin\AppData\Local\Temp\b4be6b8acda97f36c448365751d5c9a9e1b91f47cedfde79e1de258413c3de71.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\b4be6b8acda97f36c448365751d5c9a9e1b91f47cedfde79e1de258413c3de71.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\b4be6b8acda97f36c448365751d5c9a9e1b91f47cedfde79e1de258413c3de71.exe
"C:\Users\Admin\AppData\Local\Temp\b4be6b8acda97f36c448365751d5c9a9e1b91f47cedfde79e1de258413c3de71.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/1096-60-0x00000000768B1000-0x00000000768B3000-memory.dmp
memory/1992-61-0x0000000000000000-mapping.dmp
memory/1060-62-0x0000000000000000-mapping.dmp
memory/1588-63-0x0000000000000000-mapping.dmp
memory/568-64-0x0000000000000000-mapping.dmp