Analysis Overview
SHA256
8203c2f00ecd3ae960cb3247a7d7bfb35e55c38939607c85dbdb5c92f0495fa9
Threat Level: Known bad
The file 8203c2f00ecd3ae960cb3247a7d7bfb35e55c38939607c85dbdb5c92f0495fa9.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
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Interacts with shadow copies
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2021-01-03 01:13
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2021-01-03 01:13
Reported
2021-01-03 01:15
Platform
win7v20201028
Max time kernel
50s
Max time network
13s
Command Line
Signatures
Babuk Locker
Deletes shadow copies
Modifies extensions of user files
| Description | Indicator | Process | Target |
| File renamed | C:\Users\Admin\Pictures\UndoPush.png => C:\Users\Admin\Pictures\UndoPush.png.__NIST_K571__ | C:\Users\Admin\AppData\Local\Temp\8203c2f00ecd3ae960cb3247a7d7bfb35e55c38939607c85dbdb5c92f0495fa9.bin.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\DismountPublish.tif => C:\Users\Admin\Pictures\DismountPublish.tif.__NIST_K571__ | C:\Users\Admin\AppData\Local\Temp\8203c2f00ecd3ae960cb3247a7d7bfb35e55c38939607c85dbdb5c92f0495fa9.bin.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\MeasureGroup.raw => C:\Users\Admin\Pictures\MeasureGroup.raw.__NIST_K571__ | C:\Users\Admin\AppData\Local\Temp\8203c2f00ecd3ae960cb3247a7d7bfb35e55c38939607c85dbdb5c92f0495fa9.bin.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\RestartProtect.tiff | C:\Users\Admin\AppData\Local\Temp\8203c2f00ecd3ae960cb3247a7d7bfb35e55c38939607c85dbdb5c92f0495fa9.bin.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\RestartProtect.tiff => C:\Users\Admin\Pictures\RestartProtect.tiff.__NIST_K571__ | C:\Users\Admin\AppData\Local\Temp\8203c2f00ecd3ae960cb3247a7d7bfb35e55c38939607c85dbdb5c92f0495fa9.bin.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\SuspendUnblock.png => C:\Users\Admin\Pictures\SuspendUnblock.png.__NIST_K571__ | C:\Users\Admin\AppData\Local\Temp\8203c2f00ecd3ae960cb3247a7d7bfb35e55c38939607c85dbdb5c92f0495fa9.bin.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\SyncWait.crw => C:\Users\Admin\Pictures\SyncWait.crw.__NIST_K571__ | C:\Users\Admin\AppData\Local\Temp\8203c2f00ecd3ae960cb3247a7d7bfb35e55c38939607c85dbdb5c92f0495fa9.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\8203c2f00ecd3ae960cb3247a7d7bfb35e55c38939607c85dbdb5c92f0495fa9.bin.exe
"C:\Users\Admin\AppData\Local\Temp\8203c2f00ecd3ae960cb3247a7d7bfb35e55c38939607c85dbdb5c92f0495fa9.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/1640-3-0x0000000002400000-0x0000000002411000-memory.dmp
memory/1640-2-0x0000000001FF0000-0x0000000002001000-memory.dmp
memory/1192-4-0x0000000000000000-mapping.dmp
memory/1964-5-0x0000000000000000-mapping.dmp
memory/1648-6-0x0000000000000000-mapping.dmp
memory/1976-7-0x0000000000000000-mapping.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2021-01-03 01:13
Reported
2021-01-03 01:15
Platform
win10v20201028
Max time kernel
63s
Max time network
112s
Command Line
Signatures
Babuk Locker
Deletes shadow copies
Modifies extensions of user files
| Description | Indicator | Process | Target |
| File renamed | C:\Users\Admin\Pictures\JoinConvertTo.tif => C:\Users\Admin\Pictures\JoinConvertTo.tif.__NIST_K571__ | C:\Users\Admin\AppData\Local\Temp\8203c2f00ecd3ae960cb3247a7d7bfb35e55c38939607c85dbdb5c92f0495fa9.bin.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\AddRestart.raw => C:\Users\Admin\Pictures\AddRestart.raw.__NIST_K571__ | C:\Users\Admin\AppData\Local\Temp\8203c2f00ecd3ae960cb3247a7d7bfb35e55c38939607c85dbdb5c92f0495fa9.bin.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\ConfirmRedo.tiff | C:\Users\Admin\AppData\Local\Temp\8203c2f00ecd3ae960cb3247a7d7bfb35e55c38939607c85dbdb5c92f0495fa9.bin.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\ConfirmRedo.tiff => C:\Users\Admin\Pictures\ConfirmRedo.tiff.__NIST_K571__ | C:\Users\Admin\AppData\Local\Temp\8203c2f00ecd3ae960cb3247a7d7bfb35e55c38939607c85dbdb5c92f0495fa9.bin.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\DismountGrant.tif => C:\Users\Admin\Pictures\DismountGrant.tif.__NIST_K571__ | C:\Users\Admin\AppData\Local\Temp\8203c2f00ecd3ae960cb3247a7d7bfb35e55c38939607c85dbdb5c92f0495fa9.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\8203c2f00ecd3ae960cb3247a7d7bfb35e55c38939607c85dbdb5c92f0495fa9.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\8203c2f00ecd3ae960cb3247a7d7bfb35e55c38939607c85dbdb5c92f0495fa9.bin.exe
"C:\Users\Admin\AppData\Local\Temp\8203c2f00ecd3ae960cb3247a7d7bfb35e55c38939607c85dbdb5c92f0495fa9.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
Files
memory/2432-3-0x00000000032F0000-0x00000000032F1000-memory.dmp
memory/2432-2-0x0000000002AF0000-0x0000000002AF1000-memory.dmp
memory/3820-4-0x0000000000000000-mapping.dmp
memory/3248-5-0x0000000000000000-mapping.dmp
memory/3976-6-0x0000000000000000-mapping.dmp
memory/740-7-0x0000000000000000-mapping.dmp