babuk | 92b26a77b619f66aefcf2aab33152ff0dd826252283025fd25eec9ac936306bf

General

Target

4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe
Size

79KB
MD5

4e7f6c2b49e0754a98832560bbba9cd9
SHA1

47083e35d2abc557e5d95717df7dd022698ecc5a
SHA256

92b26a77b619f66aefcf2aab33152ff0dd826252283025fd25eec9ac936306bf
SHA512

db9f9ab8cdba03eabd5ed723d2415772bc8c48813b98bfcd3e9c9ef2137e3f4ff2de2ecc99b46281acc62923af2fbad15ef3989c23d558b1e893bc3227260af3
SSDEEP

1536:9k6UhZM4hubesrQLOJgY8ZZP8LHD4XWaNH71dLdG1iiFM2iG2zs4:QhZ5YesrQLOJgY8Zp8LHD4XWaNH71dLI

Score

10^/10

babuk ransomware

Malware Config

Extracted

Path

C:\PerfLogs\Admin\How To Restore Your Files.txt

Ransom Note

ALL YOUR IMPORTANT FILES HAVE BEEN ENCRYPTED! WARNINGS: • ANY ATTEMPT TO RESTORE YOUR FILES WITH THIRD-PARTY SOFTWARE WILL PERMANENTLY CORRUPT IT AND MAKE RECOVERY IMPOSSIBLE. • DO NOT MODIFY ENCRYPTED FILES. • DO NOT RENAME ENCRYPTED FILES (Including the file extension!). • No software available on internet can help you. We are the only ones able to solve your problem. IMPORTANT: • We gathered highly confidential/personal data. This data is currently stored on a private server. This data will be immediately removed after your payment. If you decide to not pay, we will release your data to public or re-seller. • We only want money and our goal is not to damage your reputation or prevent your business from running. • You will can send us 2-3 non-important files and we will decrypt it for free to prove we are able to give your files back. • Our promises are guaranteed. Faliure to comply with our agreement such as leaking data, not recovering data, or selling data/access from victims who have paid will result in loss of reputation. This will cause less victims to pay the ransom fee meaning we lose money. Because of this we have no incentive to scam you and will only lose money by doing so. Contact us for price and get decryption software. [email protected] YOUR TIME IS LIMITED: • IF YOU DON'T CONTACT US WITHIN 48 HOURS, PRICE WILL BE HIGHER. • IF YOU DON'T CONTACT US WITHIN 72 HOURS, DATA WILL BE LEAKED AND KEY WILL BE DELETED. Many Thanks, Support is Waiting ;)

Emails

[email protected]

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
T1070.004

Inhibit System Recovery
T1490
Renames multiple (205) 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

Processes:

4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe

description	ioc	process
File opened (read-only)	\??\P:	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe
File opened (read-only)	\??\S:	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe
File opened (read-only)	\??\H:	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe
File opened (read-only)	\??\X:	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe
File opened (read-only)	\??\B:	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe
File opened (read-only)	\??\M:	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe
File opened (read-only)	\??\T:	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe
File opened (read-only)	\??\O:	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe
File opened (read-only)	\??\I:	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe
File opened (read-only)	\??\J:	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe
File opened (read-only)	\??\K:	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe
File opened (read-only)	\??\N:	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe
File opened (read-only)	\??\Q:	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe
File opened (read-only)	\??\U:	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe
File opened (read-only)	\??\G:	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe
File opened (read-only)	\??\V:	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe
File opened (read-only)	\??\E:	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe
File opened (read-only)	\??\R:	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe
File opened (read-only)	\??\A:	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe
File opened (read-only)	\??\L:	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe
File opened (read-only)	\??\Z:	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe
File opened (read-only)	\??\W:	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe
File opened (read-only)	\??\Y:	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe

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

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
T1070.004

Inhibit System Recovery
T1490

Processes:

vssadmin.exevssadmin.exe

pid process

2236 vssadmin.exe
1616 vssadmin.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe

pid process

2572 4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 2668 vssvc.exe
Token: SeRestorePrivilege 2668 vssvc.exe
Token: SeAuditPrivilege 2668 vssvc.exe

pid	process
2236	vssadmin.exe
1616	vssadmin.exe

pid	process
2572	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe

description	pid	process
Token: SeBackupPrivilege	2668	vssvc.exe
Token: SeRestorePrivilege	2668	vssvc.exe
Token: SeAuditPrivilege	2668	vssvc.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.execmd.execmd.exe

description	pid	process	target process
PID 2572 wrote to memory of 2996	2572	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe	cmd.exe
PID 2572 wrote to memory of 2996	2572	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe	cmd.exe
PID 2572 wrote to memory of 2996	2572	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe	cmd.exe
PID 2572 wrote to memory of 2996	2572	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe	cmd.exe
PID 2996 wrote to memory of 2236	2996	cmd.exe	vssadmin.exe
PID 2996 wrote to memory of 2236	2996	cmd.exe	vssadmin.exe
PID 2996 wrote to memory of 2236	2996	cmd.exe	vssadmin.exe
PID 2572 wrote to memory of 1548	2572	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe	cmd.exe
PID 2572 wrote to memory of 1548	2572	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe	cmd.exe
PID 2572 wrote to memory of 1548	2572	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe	cmd.exe
PID 2572 wrote to memory of 1548	2572	4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe	cmd.exe
PID 1548 wrote to memory of 1616	1548	cmd.exe	vssadmin.exe
PID 1548 wrote to memory of 1616	1548	cmd.exe	vssadmin.exe
PID 1548 wrote to memory of 1616	1548	cmd.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe
"C:\Users\Admin\AppData\Local\Temp\4e7f6c2b49e0754a98832560bbba9cd9_babuk_destroyer_JC.exe"
1⤵
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2572
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2996
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:2236
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1548
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:1616

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2668

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

2

T1070

File Deletion

2

T1070.004

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

2

T1490

Replay Monitor

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Downloads

C:\PerfLogs\Admin\How To Restore Your Files.txt

Filesize
1KB

MD5
d0611c32100542de4fd6f77f2a2f701b

SHA1
924bd0ab0c5a68dd27c9978805a1a97c5b3088ff

SHA256
c37cbb2245e2e33357aa382e07b3eb7868cb7b6832b114e49889c071fc39c6e9

SHA512
d9bdf63358f3ce5bbac0f9305e3785e592742a6c47a76da95c73f17a6b719843687ca6b283c9e0f31d16d12bfee8f7a5659c4ef38e3492fd023c4e2bfdeb2b79

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Analysis

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