Analysis Overview
SHA256
1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02
Threat Level: Known bad
The file 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.bin was found to be: Known bad.
Malicious Activity Summary
Babuk Locker
Deletes shadow copies
Modifies extensions of user files
Drops startup file
Enumerates connected drives
Enumerates physical storage devices
Interacts with shadow copies
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2021-03-10 22:33
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2021-03-10 22:33
Reported
2021-03-10 22:35
Platform
win7v20201028
Max time kernel
107s
Max time network
107s
Command Line
Signatures
Babuk Locker
Deletes shadow copies
Modifies extensions of user files
| Description | Indicator | Process | Target |
| File renamed | C:\Users\Admin\Pictures\GrantSave.png => C:\Users\Admin\Pictures\GrantSave.png.__NIST_K571__ | C:\Users\Admin\AppData\Local\Temp\1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.bin.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\JoinEdit.png => C:\Users\Admin\Pictures\JoinEdit.png.__NIST_K571__ | C:\Users\Admin\AppData\Local\Temp\1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.bin.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\TestUnprotect.png => C:\Users\Admin\Pictures\TestUnprotect.png.__NIST_K571__ | C:\Users\Admin\AppData\Local\Temp\1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.bin.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\UnprotectPush.crw => C:\Users\Admin\Pictures\UnprotectPush.crw.__NIST_K571__ | C:\Users\Admin\AppData\Local\Temp\1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.bin.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\ClearRename.tif => C:\Users\Admin\Pictures\ClearRename.tif.__NIST_K571__ | C:\Users\Admin\AppData\Local\Temp\1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.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
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\1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.bin.exe
"C:\Users\Admin\AppData\Local\Temp\1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.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\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/800-2-0x0000000076C21000-0x0000000076C23000-memory.dmp
memory/800-3-0x0000000001F10000-0x0000000001F21000-memory.dmp
memory/800-4-0x0000000002320000-0x0000000002331000-memory.dmp
memory/1972-5-0x0000000000000000-mapping.dmp
memory/1120-6-0x0000000000000000-mapping.dmp
memory/1688-7-0x0000000000000000-mapping.dmp
memory/1964-8-0x0000000000000000-mapping.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2021-03-10 22:33
Reported
2021-03-10 22:36
Platform
win10v20201028
Max time kernel
135s
Max time network
136s
Command Line
Signatures
Babuk Locker
Deletes shadow copies
Modifies extensions of user files
| Description | Indicator | Process | Target |
| File renamed | C:\Users\Admin\Pictures\CloseReset.tiff => C:\Users\Admin\Pictures\CloseReset.tiff.__NIST_K571__ | C:\Users\Admin\AppData\Local\Temp\1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.bin.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\EditSync.tiff | C:\Users\Admin\AppData\Local\Temp\1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.bin.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\EditSync.tiff => C:\Users\Admin\Pictures\EditSync.tiff.__NIST_K571__ | C:\Users\Admin\AppData\Local\Temp\1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.bin.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\GrantClose.tif => C:\Users\Admin\Pictures\GrantClose.tif.__NIST_K571__ | C:\Users\Admin\AppData\Local\Temp\1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.bin.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\InvokeCompress.crw => C:\Users\Admin\Pictures\InvokeCompress.crw.__NIST_K571__ | C:\Users\Admin\AppData\Local\Temp\1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.bin.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\LimitUse.tif => C:\Users\Admin\Pictures\LimitUse.tif.__NIST_K571__ | C:\Users\Admin\AppData\Local\Temp\1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.bin.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\SendOut.raw => C:\Users\Admin\Pictures\SendOut.raw.__NIST_K571__ | C:\Users\Admin\AppData\Local\Temp\1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.bin.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\CloseReset.tiff | C:\Users\Admin\AppData\Local\Temp\1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.bin.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\How To Restore Your Files.txt | C:\Users\Admin\AppData\Local\Temp\1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.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
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 SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe | N/A |
| N/A | N/A | C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.bin.exe
"C:\Users\Admin\AppData\Local\Temp\1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.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\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe
"C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe" -ServerName:App.AppXtk181tbxbce2qsex02s8tw7hfxa9xb3t.mca
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 |
| N/A | 52.109.8.19:443 | tcp |
Files
memory/1908-2-0x00000000026E0000-0x00000000026E1000-memory.dmp
memory/1908-3-0x0000000002EE0000-0x0000000002EE1000-memory.dmp
memory/2768-4-0x0000000000000000-mapping.dmp
memory/3168-5-0x0000000000000000-mapping.dmp
memory/3916-6-0x0000000000000000-mapping.dmp
memory/3924-7-0x0000000000000000-mapping.dmp