babuk | 1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368

General

Target

1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
Size

79KB
MD5

2cd19f67df6d9e1a42e9893e3813b459
SHA1

308b02416b9930bfc1d3fbbef9d184dcbf5714b4
SHA256

1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368
SHA512

1b77d760ba626308fd67572189821b7c97bf619495da7bd063fe35ee5eceedfe08dfbee02b9d26381b23cdab848bcad27a56632b89a702bb9cac1e5026de5304
SSDEEP

1536:m6UhZM4hubesrQLOJgY8ZZP8LHD4XWaNH71dLdG1iiFM2iG2zs4:ghZ5YesrQLOJgY8Zp8LHD4XWaNH71dLI

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 9 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe

description	ioc	process
File opened for modification	C:\Users\Admin\Pictures\StartConvert.tiff	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File renamed	C:\Users\Admin\Pictures\ResetRevoke.png => C:\Users\Admin\Pictures\ResetRevoke.png.babyk	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File renamed	C:\Users\Admin\Pictures\StartConvert.tiff => C:\Users\Admin\Pictures\StartConvert.tiff.babyk	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File opened for modification	C:\Users\Admin\Pictures\SearchPop.tif.babyk	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File opened for modification	C:\Users\Admin\Pictures\StartConvert.tiff.babyk	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File renamed	C:\Users\Admin\Pictures\OptimizeRestart.raw => C:\Users\Admin\Pictures\OptimizeRestart.raw.babyk	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File opened for modification	C:\Users\Admin\Pictures\OptimizeRestart.raw.babyk	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File opened for modification	C:\Users\Admin\Pictures\ResetRevoke.png.babyk	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File renamed	C:\Users\Admin\Pictures\SearchPop.tif => C:\Users\Admin\Pictures\SearchPop.tif.babyk	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.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:

1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.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:

1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe

description	ioc	process
File opened (read-only)	\??\Q:	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File opened (read-only)	\??\S:	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File opened (read-only)	\??\F:	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File opened (read-only)	\??\G:	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File opened (read-only)	\??\L:	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File opened (read-only)	\??\Z:	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File opened (read-only)	\??\W:	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File opened (read-only)	\??\R:	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File opened (read-only)	\??\Y:	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File opened (read-only)	\??\A:	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File opened (read-only)	\??\H:	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File opened (read-only)	\??\X:	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File opened (read-only)	\??\E:	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File opened (read-only)	\??\P:	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File opened (read-only)	\??\V:	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File opened (read-only)	\??\N:	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File opened (read-only)	\??\M:	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File opened (read-only)	\??\T:	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File opened (read-only)	\??\U:	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File opened (read-only)	\??\I:	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File opened (read-only)	\??\O:	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File opened (read-only)	\??\J:	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File opened (read-only)	\??\K:	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
File opened (read-only)	\??\B:	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.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

2212 vssadmin.exe
5048 vssadmin.exe

pid	process
2212	vssadmin.exe
5048	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe

pid	process
1768	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
1768	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 3912 vssvc.exe
Token: SeRestorePrivilege 3912 vssvc.exe
Token: SeAuditPrivilege 3912 vssvc.exe

description	pid	process
Token: SeBackupPrivilege	3912	vssvc.exe
Token: SeRestorePrivilege	3912	vssvc.exe
Token: SeAuditPrivilege	3912	vssvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.execmd.execmd.exe

description	pid	process	target process
PID 1768 wrote to memory of 4992	1768	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe	cmd.exe
PID 1768 wrote to memory of 4992	1768	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe	cmd.exe
PID 4992 wrote to memory of 5048	4992	cmd.exe	vssadmin.exe
PID 4992 wrote to memory of 5048	4992	cmd.exe	vssadmin.exe
PID 1768 wrote to memory of 4516	1768	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe	cmd.exe
PID 1768 wrote to memory of 4516	1768	1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe	cmd.exe
PID 4516 wrote to memory of 2212	4516	cmd.exe	vssadmin.exe
PID 4516 wrote to memory of 2212	4516	cmd.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe
"C:\Users\Admin\AppData\Local\Temp\1d5f8c4e2cb635bb5cfb001dfd0db882b9eeea700f04a6b9cb1a934667b85368.exe"
1⤵
- Modifies extensions of user files
- Checks computer location settings
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1768
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4992
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:5048
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4516
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:2212