babuk | bb845cf9c1674452a995f58b3971c04fd67a0a8d256288e58cb4454bb80a5efe

General

Target

2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe
Size

79KB
MD5

2298d910b2d34e870e0f561eda4dcfc6
SHA1

078b2cace5161e34aaaaeba6bfbe3f6259651f34
SHA256

bb845cf9c1674452a995f58b3971c04fd67a0a8d256288e58cb4454bb80a5efe
SHA512

6465216a71c116321a6e7d9e1746247cfe1c29a5897422f13ed55cfb3a0daa42ba673a7cc308bf5440c6bf5fb084d065a6b4aab84c11ca1d81fdf23c09cbfe33
SSDEEP

1536:N8WkWBeG/vEbmsrQLOJgY8ZZP8LHD4XWaNH71dLdG1iiFM2iG2nsf:lBeQsmsrQLOJgY8Zp8LHD4XWaNH71dLc

Score

10^/10

babuk defense_evasion discovery execution impact ransomware

Malware Config

Signatures

Babuk Locker
RaaS first seen in 2021 initially called Vasa Locker.
ransomware babuk
Babuk family
babuk
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047
Renames multiple (202) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Enumerates connected drives 3 TTPs 23 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)	\??\U:	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe
File opened (read-only)	\??\P:	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe
File opened (read-only)	\??\S:	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe
File opened (read-only)	\??\H:	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe
File opened (read-only)	\??\Z:	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe
File opened (read-only)	\??\Q:	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe
File opened (read-only)	\??\O:	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe
File opened (read-only)	\??\J:	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe
File opened (read-only)	\??\K:	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe
File opened (read-only)	\??\X:	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe
File opened (read-only)	\??\V:	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe
File opened (read-only)	\??\B:	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe
File opened (read-only)	\??\T:	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe
File opened (read-only)	\??\Y:	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe
File opened (read-only)	\??\I:	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe
File opened (read-only)	\??\A:	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe
File opened (read-only)	\??\N:	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe
File opened (read-only)	\??\W:	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe
File opened (read-only)	\??\E:	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe
File opened (read-only)	\??\R:	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe
File opened (read-only)	\??\G:	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe
File opened (read-only)	\??\L:	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe
File opened (read-only)	\??\M:	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe

Interacts with shadow copies 3 TTPs 2 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

Direct Volume Access

T1006

pid	Process
2832	vssadmin.exe
2192	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2420	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	2636	vssvc.exe
Token: SeRestorePrivilege	2636	vssvc.exe
Token: SeAuditPrivilege	2636	vssvc.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 1740	2420	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe	30
PID 2420 wrote to memory of 1740	2420	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe	30
PID 2420 wrote to memory of 1740	2420	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe	30
PID 2420 wrote to memory of 1740	2420	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe	30
PID 1740 wrote to memory of 2832	1740	cmd.exe	32
PID 1740 wrote to memory of 2832	1740	cmd.exe	32
PID 1740 wrote to memory of 2832	1740	cmd.exe	32
PID 2420 wrote to memory of 1528	2420	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe	36
PID 2420 wrote to memory of 1528	2420	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe	36
PID 2420 wrote to memory of 1528	2420	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe	36
PID 2420 wrote to memory of 1528	2420	2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe	36
PID 1528 wrote to memory of 2192	1528	cmd.exe	38
PID 1528 wrote to memory of 2192	1528	cmd.exe	38
PID 1528 wrote to memory of 2192	1528	cmd.exe	38

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe"
1⤵
- Enumerates connected drives
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2420
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1740
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:2832
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1528
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:2192

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2636

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

1

T1047

Persistence

Privilege Escalation

Defense Evasion

Direct Volume Access

1

T1006

Indicator Removal

2

T1070

File Deletion

2

T1070.004

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

2

T1490

Replay Monitor

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Downloads

C:\Users\Admin\Contacts\How To Restore Your Files.txt

Filesize
259B

MD5
f026fb213f419a400ba83e1a69d26472

SHA1
821f1318d077065fe1a3fe2075f053f1191d5739

SHA256
b87c7d852c60b34e5986e2d41fb4f644df11f7350ef2272ad58a469e476d2bc1

SHA512
6929aa4dccef21718625513ab21c9e39599969d6350dadfa00747cc8bde302d2d7158df845686f1e607b2b05126697263982f6ab61e189781117c9329176e50e

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Analysis

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