babuk | 9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc

General

Target

9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe
Size

79KB
MD5

c05b05aff8880d94c757181cbbdd77cf
SHA1

84440af2b8f3db1303446b1067c0ed4d0295a4c4
SHA256

9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc
SHA512

504ff3c5756fc72ea085960768b509ddf8fd7bb2395270c36d58e85c7fc04abfadd74268eb84a81e892c5a90b3cf7bc6460f5f766507f1e12da64386cd4a4e39
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

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.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

description	ioc	Process
File opened (read-only)	\??\Q:	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe
File opened (read-only)	\??\Y:	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe
File opened (read-only)	\??\P:	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe
File opened (read-only)	\??\X:	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe
File opened (read-only)	\??\N:	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe
File opened (read-only)	\??\W:	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe
File opened (read-only)	\??\R:	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe
File opened (read-only)	\??\K:	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe
File opened (read-only)	\??\B:	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe
File opened (read-only)	\??\M:	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe
File opened (read-only)	\??\Z:	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe
File opened (read-only)	\??\V:	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe
File opened (read-only)	\??\E:	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe
File opened (read-only)	\??\T:	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe
File opened (read-only)	\??\U:	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe
File opened (read-only)	\??\O:	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe
File opened (read-only)	\??\S:	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe
File opened (read-only)	\??\L:	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe
File opened (read-only)	\??\I:	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe
File opened (read-only)	\??\A:	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe
File opened (read-only)	\??\F:	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe
File opened (read-only)	\??\G:	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe
File opened (read-only)	\??\H:	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe
File opened (read-only)	\??\J:	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.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

pid	Process
3520	vssadmin.exe
4544	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3420	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe
3420	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	4628	vssvc.exe
Token: SeRestorePrivilege	4628	vssvc.exe
Token: SeAuditPrivilege	4628	vssvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3420 wrote to memory of 3280	3420	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe	81
PID 3420 wrote to memory of 3280	3420	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe	81
PID 3280 wrote to memory of 4544	3280	cmd.exe	83
PID 3280 wrote to memory of 4544	3280	cmd.exe	83
PID 3420 wrote to memory of 4640	3420	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe	87
PID 3420 wrote to memory of 4640	3420	9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe	87
PID 4640 wrote to memory of 3520	4640	cmd.exe	89
PID 4640 wrote to memory of 3520	4640	cmd.exe	89

C:\Users\Admin\AppData\Local\Temp\9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe
"C:\Users\Admin\AppData\Local\Temp\9ba829497c489b88591ef040d5f4228e5edda50f031d654a82ea04dfae6fcfbc.exe"
1⤵
- Checks computer location settings
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3420
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3280
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:4544
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4640
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:3520