babuk | 315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68

General

Target

315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
Size

79KB
MD5

42f5327e3e5a4b238ec51ce0fa5f2e33
SHA1

64a39bd9b347a99d9d9bfc54c145ffb076082c26
SHA256

315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68
SHA512

528d652bd1900b9e979352f7e4707c0f82fea3260147d3d67cad6bb03b1afa5c95a8b83b820ccacd20c4c93481b0afd4fc73d9dafb6c1beaa7f0ef653e818589
SSDEEP

1536:96UhZM4hubesrQLOJgY8ZZP8LHD4XWaNH71dLdG1iiFM2iG2zs4:ZhZ5YesrQLOJgY8Zp8LHD4XWaNH71dLI

Score

10^/10

babuk ransomware

Malware Config

Signatures

Babuk Locker
RaaS first seen in 2021 initially called Vasa Locker.
ransomware babuk
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Modifies extensions of user files 17 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe

description	ioc	process
File opened for modification	C:\Users\Admin\Pictures\RepairWatch.tiff	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File renamed	C:\Users\Admin\Pictures\RepairWatch.tiff => C:\Users\Admin\Pictures\RepairWatch.tiff.babyk	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened for modification	C:\Users\Admin\Pictures\ResizeConnect.crw.babyk	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened for modification	C:\Users\Admin\Pictures\StopConnect.tif.babyk	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File renamed	C:\Users\Admin\Pictures\WaitClose.raw => C:\Users\Admin\Pictures\WaitClose.raw.babyk	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened for modification	C:\Users\Admin\Pictures\GroupCopy.tiff	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened for modification	C:\Users\Admin\Pictures\ImportEnter.tiff	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File renamed	C:\Users\Admin\Pictures\GroupCopy.tiff => C:\Users\Admin\Pictures\GroupCopy.tiff.babyk	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened for modification	C:\Users\Admin\Pictures\GroupCopy.tiff.babyk	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File renamed	C:\Users\Admin\Pictures\ExpandSuspend.raw => C:\Users\Admin\Pictures\ExpandSuspend.raw.babyk	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File renamed	C:\Users\Admin\Pictures\ImportEnter.tiff => C:\Users\Admin\Pictures\ImportEnter.tiff.babyk	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened for modification	C:\Users\Admin\Pictures\ImportEnter.tiff.babyk	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened for modification	C:\Users\Admin\Pictures\ExpandSuspend.raw.babyk	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened for modification	C:\Users\Admin\Pictures\RepairWatch.tiff.babyk	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File renamed	C:\Users\Admin\Pictures\ResizeConnect.crw => C:\Users\Admin\Pictures\ResizeConnect.crw.babyk	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File renamed	C:\Users\Admin\Pictures\StopConnect.tif => C:\Users\Admin\Pictures\StopConnect.tif.babyk	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened for modification	C:\Users\Admin\Pictures\WaitClose.raw.babyk	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe

Enumerates connected drives 3 TTPs 24 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe

description	ioc	process
File opened (read-only)	\??\A:	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened (read-only)	\??\J:	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened (read-only)	\??\V:	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened (read-only)	\??\M:	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened (read-only)	\??\W:	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened (read-only)	\??\E:	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened (read-only)	\??\I:	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened (read-only)	\??\U:	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened (read-only)	\??\S:	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened (read-only)	\??\F:	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened (read-only)	\??\G:	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened (read-only)	\??\H:	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened (read-only)	\??\R:	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened (read-only)	\??\T:	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened (read-only)	\??\Y:	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened (read-only)	\??\N:	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened (read-only)	\??\L:	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened (read-only)	\??\Z:	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened (read-only)	\??\B:	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened (read-only)	\??\K:	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened (read-only)	\??\X:	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened (read-only)	\??\Q:	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened (read-only)	\??\O:	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
File opened (read-only)	\??\P:	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Processes:

vssadmin.exevssadmin.exe

pid process

5012 vssadmin.exe
4584 vssadmin.exe

pid	process
5012	vssadmin.exe
4584	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe

pid	process
868	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
868	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 1736 vssvc.exe
Token: SeRestorePrivilege 1736 vssvc.exe
Token: SeAuditPrivilege 1736 vssvc.exe

description	pid	process
Token: SeBackupPrivilege	1736	vssvc.exe
Token: SeRestorePrivilege	1736	vssvc.exe
Token: SeAuditPrivilege	1736	vssvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.execmd.execmd.exe

description	pid	process	target process
PID 868 wrote to memory of 3388	868	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe	cmd.exe
PID 868 wrote to memory of 3388	868	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe	cmd.exe
PID 3388 wrote to memory of 5012	3388	cmd.exe	vssadmin.exe
PID 3388 wrote to memory of 5012	3388	cmd.exe	vssadmin.exe
PID 868 wrote to memory of 432	868	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe	cmd.exe
PID 868 wrote to memory of 432	868	315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe	cmd.exe
PID 432 wrote to memory of 4584	432	cmd.exe	vssadmin.exe
PID 432 wrote to memory of 4584	432	cmd.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe
"C:\Users\Admin\AppData\Local\Temp\315d992d260498b9757bfedf95e8dec79f934c5e0139c696d5ba581508921a68.exe"
1⤵
- Modifies extensions of user files
- Checks computer location settings
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:868

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
2⤵
- Suspicious use of WriteProcessMemory
PID:3388

C:\Windows\system32\vssadmin.exe
vssadmin.exe delete shadows /all /quiet
3⤵
- Interacts with shadow copies
PID:5012

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
2⤵
- Suspicious use of WriteProcessMemory
PID:432