Analysis Overview
SHA256
cb5e69c29c3e7d54245d3f32d8f4f153c9f6b6704c96c92bae513e28f01208de
Threat Level: Known bad
The file 2024-09-04_cd80dc7644c812853899d925af527c5d_babuk_destroyer was found to be: Known bad.
Malicious Activity Summary
Babuk Locker
Renames multiple (192) files with added filename extension
Deletes shadow copies
Renames multiple (197) files with added filename extension
Checks computer location settings
Enumerates connected drives
Enumerates physical storage devices
Unsigned PE
System Location Discovery: System Language Discovery
Uses Volume Shadow Copy service COM API
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Interacts with shadow copies
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-09-04 00:48
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-09-04 00:48
Reported
2024-09-04 00:50
Platform
win7-20240903-en
Max time kernel
118s
Max time network
124s
Command Line
Signatures
Babuk Locker
Deletes shadow copies
Renames multiple (197) files with added filename extension
Enumerates connected drives
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\2024-09-04_cd80dc7644c812853899d925af527c5d_babuk_destroyer.exe | N/A |
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\2024-09-04_cd80dc7644c812853899d925af527c5d_babuk_destroyer.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
Uses Volume Shadow Copy service COM API
Processes
C:\Users\Admin\AppData\Local\Temp\2024-09-04_cd80dc7644c812853899d925af527c5d_babuk_destroyer.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-04_cd80dc7644c812853899d925af527c5d_babuk_destroyer.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
C:\PerfLogs\Admin\How to decrypt your files.txt
| MD5 | 1cb251ec0d568de6a929b520c4aed8d1 |
| SHA1 | 372ea08cab33e71c02c651dbc83a474d32c676ea |
| SHA256 | 982d9e3eb996f559e633f4d194def3761d909f5a3b647d1a851fead67c32c9d1 |
| SHA512 | eaf2c12742cb8c161bcbd84b032b9bb98999a23282542672ca01cc6edd268f7dce9987ad6b2bc79305634f89d90b90102bcd59a57e7135b8e3ceb93c0597117b |
Analysis: behavioral2
Detonation Overview
Submitted
2024-09-04 00:48
Reported
2024-09-04 00:50
Platform
win10v2004-20240802-en
Max time kernel
130s
Max time network
141s
Command Line
Signatures
Babuk Locker
Deletes shadow copies
Renames multiple (192) files with added filename extension
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-09-04_cd80dc7644c812853899d925af527c5d_babuk_destroyer.exe | N/A |
Enumerates connected drives
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\2024-09-04_cd80dc7644c812853899d925af527c5d_babuk_destroyer.exe | N/A |
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\2024-09-04_cd80dc7644c812853899d925af527c5d_babuk_destroyer.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-09-04_cd80dc7644c812853899d925af527c5d_babuk_destroyer.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
Uses Volume Shadow Copy service COM API
Processes
C:\Users\Admin\AppData\Local\Temp\2024-09-04_cd80dc7644c812853899d925af527c5d_babuk_destroyer.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-04_cd80dc7644c812853899d925af527c5d_babuk_destroyer.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4324,i,12198811467968044966,17227406646827438786,262144 --variations-seed-version --mojo-platform-channel-handle=4140 /prefetch:8
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 |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 69.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
Files
C:\Users\Admin\How to decrypt your files.txt
| MD5 | 1cb251ec0d568de6a929b520c4aed8d1 |
| SHA1 | 372ea08cab33e71c02c651dbc83a474d32c676ea |
| SHA256 | 982d9e3eb996f559e633f4d194def3761d909f5a3b647d1a851fead67c32c9d1 |
| SHA512 | eaf2c12742cb8c161bcbd84b032b9bb98999a23282542672ca01cc6edd268f7dce9987ad6b2bc79305634f89d90b90102bcd59a57e7135b8e3ceb93c0597117b |