babuk | 2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9

General

Target

2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
Size

79KB
MD5

d0cf60b2779a45bc9160e3bffcdf82d6
SHA1

5f4f54f118ed571e91012ab61e9dbcee40515338
SHA256

2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9
SHA512

879b805d8eb16777c2db7607c6fa4d34e5853aeabf870420b774027ab78e0ec6f6b63c705e0d84c992ac4ee7d2904f0f4c2eab92a00ed4f261eb8d8662539629

Score

10^/10

babuk ransomware

Malware Config

Extracted

Path

C:\Documents and Settings\How To Restore Your Files.txt

Ransom Note

--------------- Hello --------------- *** By BABUCK LOCKER *** Your computers and servers are encrypted, and backups are deleted. We use strong encryption algorithms, so no one has yet been able to decrypt their files without our participation. The only way to decrypt your files is to purchase a universal decoder from us, which will restore all the encrypted data and your network. Follow our instructions below, and you will recover all your data: 1) Pay 0,006 bitcoin to 1E6cvG6iEbufvYspsDa3XQ3WJgEMvRTm9i 2) Send us message with transaction id to [email protected] 3) Launch decryptor.exe, which our support will send you through email What guarantees? ----------------------------------------------------- We value our reputation. If we will not do our work and liabilities, nobody will pay us. This is not in our interests. All our decryption software is tested by time and will decrypt all your data. ----------------------------------------------------- !!! DO NOT TRY TO RECOVER ANY FILES YOURSELF. WE WILL NOT BE ABLE TO RESTORE THEM!!!

Emails

[email protected]

Wallets

1E6cvG6iEbufvYspsDa3XQ3WJgEMvRTm9i

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 11 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe

description	ioc	process
File renamed	C:\Users\Admin\Pictures\StartUninstall.tiff => C:\Users\Admin\Pictures\StartUninstall.tiff.babyk	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File opened for modification	C:\Users\Admin\Pictures\StartUninstall.tiff.babyk	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File renamed	C:\Users\Admin\Pictures\ConvertFromUpdate.raw => C:\Users\Admin\Pictures\ConvertFromUpdate.raw.babyk	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File opened for modification	C:\Users\Admin\Pictures\MountRead.tif.babyk	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File renamed	C:\Users\Admin\Pictures\SaveRequest.raw => C:\Users\Admin\Pictures\SaveRequest.raw.babyk	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File opened for modification	C:\Users\Admin\Pictures\StartUninstall.tiff	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File opened for modification	C:\Users\Admin\Pictures\SaveRequest.raw.babyk	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File opened for modification	C:\Users\Admin\Pictures\ConvertFromUpdate.raw.babyk	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File renamed	C:\Users\Admin\Pictures\MountEdit.tif => C:\Users\Admin\Pictures\MountEdit.tif.babyk	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File opened for modification	C:\Users\Admin\Pictures\MountEdit.tif.babyk	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File renamed	C:\Users\Admin\Pictures\MountRead.tif => C:\Users\Admin\Pictures\MountRead.tif.babyk	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.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:

2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe

description	ioc	process
File opened (read-only)	\??\R:	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File opened (read-only)	\??\I:	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File opened (read-only)	\??\A:	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File opened (read-only)	\??\F:	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File opened (read-only)	\??\B:	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File opened (read-only)	\??\Q:	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File opened (read-only)	\??\S:	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File opened (read-only)	\??\G:	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File opened (read-only)	\??\H:	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File opened (read-only)	\??\Z:	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File opened (read-only)	\??\X:	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File opened (read-only)	\??\V:	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File opened (read-only)	\??\U:	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File opened (read-only)	\??\P:	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File opened (read-only)	\??\K:	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File opened (read-only)	\??\W:	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File opened (read-only)	\??\E:	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File opened (read-only)	\??\T:	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File opened (read-only)	\??\Y:	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File opened (read-only)	\??\O:	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File opened (read-only)	\??\J:	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File opened (read-only)	\??\L:	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File opened (read-only)	\??\N:	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
File opened (read-only)	\??\M:	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.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

2544 vssadmin.exe
684 vssadmin.exe

pid	process
2544	vssadmin.exe
684	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe

pid	process
3980	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
3980	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 2688 vssvc.exe
Token: SeRestorePrivilege 2688 vssvc.exe
Token: SeAuditPrivilege 2688 vssvc.exe

description	pid	process
Token: SeBackupPrivilege	2688	vssvc.exe
Token: SeRestorePrivilege	2688	vssvc.exe
Token: SeAuditPrivilege	2688	vssvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.execmd.execmd.exe

description	pid	process	target process
PID 3980 wrote to memory of 1944	3980	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe	cmd.exe
PID 3980 wrote to memory of 1944	3980	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe	cmd.exe
PID 1944 wrote to memory of 2544	1944	cmd.exe	vssadmin.exe
PID 1944 wrote to memory of 2544	1944	cmd.exe	vssadmin.exe
PID 3980 wrote to memory of 3428	3980	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe	cmd.exe
PID 3980 wrote to memory of 3428	3980	2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe	cmd.exe
PID 3428 wrote to memory of 684	3428	cmd.exe	vssadmin.exe
PID 3428 wrote to memory of 684	3428	cmd.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe
"C:\Users\Admin\AppData\Local\Temp\2ae5895f6a5f1fe6ee1d5b060b600de7d11655c69c27ad3fbcd348759b7160c9.sample.exe"
1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3980
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1944
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:2544
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3428
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:684