Analysis
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max time kernel
122s -
max time network
137s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
06-03-2022 05:47
Static task
static1
Behavioral task
behavioral1
Sample
58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe
Resource
win10v2004-en-20220112
General
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Target
58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe
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Size
29KB
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MD5
67e49cfcd12103b5ef2f9f331f092dbe
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SHA1
72cad5a81ce546b42844b5b8fc2ab55e99f2b5d4
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SHA256
58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053
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SHA512
21fa0d1be0d5be2da8c4c68357e1e294503d87c21a304c5811669eaa9aba29b6cfcd077d083547e2f41269b12c6a8da5ad2ea0f1613d9a96917ea01c69fcb087
Malware Config
Extracted
C:\Users\How To Restore Your Files.txt
http://babukq4e2p4wu4iq.onion/login.php?id=dKK7wnOiVHoXdqSrVcb1gxKpC9JICQ
http://gtmx56k4hutn3ikv.onion/?dUIel0o8kfjZf4zUHDbm
https://temp.sh/fVAxj/1.png
https://temp.sh/VZRcj/2.png
https://temp.sh/qpkLy/3.png
https://temp.sh/hPkTt/4.png
https://temp.sh/ENvac/5.png
https://temp.sh/YzAJd/6.png
https://temp.sh/eBGdx/7.png
https://temp.sh/KAXUW/8.png
Signatures
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Babuk Locker
RaaS first seen in 2021 initially called Vasa Locker.
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Modifies extensions of user files 16 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exedescription ioc process File renamed C:\Users\Admin\Pictures\CheckpointDismount.raw => C:\Users\Admin\Pictures\CheckpointDismount.raw.babyk 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File renamed C:\Users\Admin\Pictures\CompareWait.crw => C:\Users\Admin\Pictures\CompareWait.crw.babyk 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File renamed C:\Users\Admin\Pictures\UnprotectRead.png => C:\Users\Admin\Pictures\UnprotectRead.png.babyk 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened for modification C:\Users\Admin\Pictures\ExportOpen.tif.babyk 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened for modification C:\Users\Admin\Pictures\ResolveEnable.png.babyk 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened for modification C:\Users\Admin\Pictures\UnprotectRead.png.babyk 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened for modification C:\Users\Admin\Pictures\CheckpointDismount.raw.babyk 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened for modification C:\Users\Admin\Pictures\CompleteResolve.tif.babyk 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened for modification C:\Users\Admin\Pictures\CompareWait.crw.babyk 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened for modification C:\Users\Admin\Pictures\FormatLock.crw.babyk 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened for modification C:\Users\Admin\Pictures\OpenUnpublish.raw.babyk 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File renamed C:\Users\Admin\Pictures\CompleteResolve.tif => C:\Users\Admin\Pictures\CompleteResolve.tif.babyk 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File renamed C:\Users\Admin\Pictures\ExportOpen.tif => C:\Users\Admin\Pictures\ExportOpen.tif.babyk 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File renamed C:\Users\Admin\Pictures\FormatLock.crw => C:\Users\Admin\Pictures\FormatLock.crw.babyk 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File renamed C:\Users\Admin\Pictures\OpenUnpublish.raw => C:\Users\Admin\Pictures\OpenUnpublish.raw.babyk 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File renamed C:\Users\Admin\Pictures\ResolveEnable.png => C:\Users\Admin\Pictures\ResolveEnable.png.babyk 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe -
Enumerates connected drives 3 TTPs 24 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exedescription ioc process File opened (read-only) \??\B: 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened (read-only) \??\N: 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened (read-only) \??\R: 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened (read-only) \??\Y: 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened (read-only) \??\F: 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened (read-only) \??\K: 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened (read-only) \??\X: 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened (read-only) \??\S: 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened (read-only) \??\J: 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened (read-only) \??\L: 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened (read-only) \??\V: 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened (read-only) \??\W: 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened (read-only) \??\I: 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened (read-only) \??\A: 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened (read-only) \??\H: 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened (read-only) \??\Z: 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened (read-only) \??\P: 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened (read-only) \??\G: 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened (read-only) \??\M: 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened (read-only) \??\Q: 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened (read-only) \??\E: 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened (read-only) \??\T: 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened (read-only) \??\U: 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe File opened (read-only) \??\O: 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
Processes:
vssadmin.exevssadmin.exepid process 776 vssadmin.exe 1844 vssadmin.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exepid process 1500 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
vssvc.exedescription pid process Token: SeBackupPrivilege 904 vssvc.exe Token: SeRestorePrivilege 904 vssvc.exe Token: SeAuditPrivilege 904 vssvc.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.execmd.execmd.exedescription pid process target process PID 1500 wrote to memory of 976 1500 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe cmd.exe PID 1500 wrote to memory of 976 1500 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe cmd.exe PID 1500 wrote to memory of 976 1500 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe cmd.exe PID 1500 wrote to memory of 976 1500 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe cmd.exe PID 976 wrote to memory of 776 976 cmd.exe vssadmin.exe PID 976 wrote to memory of 776 976 cmd.exe vssadmin.exe PID 976 wrote to memory of 776 976 cmd.exe vssadmin.exe PID 1500 wrote to memory of 1564 1500 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe cmd.exe PID 1500 wrote to memory of 1564 1500 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe cmd.exe PID 1500 wrote to memory of 1564 1500 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe cmd.exe PID 1500 wrote to memory of 1564 1500 58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe cmd.exe PID 1564 wrote to memory of 1844 1564 cmd.exe vssadmin.exe PID 1564 wrote to memory of 1844 1564 cmd.exe vssadmin.exe PID 1564 wrote to memory of 1844 1564 cmd.exe vssadmin.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe"C:\Users\Admin\AppData\Local\Temp\58ccba4fb2b3ed8b5f92adddd6ee331a6afdedfc755145e0432a7cb324c28053.exe"1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1500 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet2⤵
- Suspicious use of WriteProcessMemory
PID:976 -
C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:776 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet2⤵
- Suspicious use of WriteProcessMemory
PID:1564 -
C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:1844
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:904