babuk | ffe25e376aa3e54a2752c4fa17fd2076481a58e96b788f1a1d6582aaf2e3789a

General

Target

2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe
Size

79KB
MD5

f6282c938e0662cf851feee0146d79a4
SHA1

9d0c6528565303e5b10a964a2783c77f25b9695b
SHA256

2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf
SHA512

b99be65ddc6154128992b510aa1b053b56dbad7f91f9102e42a06ada2f3c58f5ac6423483728648c20adce862c6f0e136913c6d0441a47391cedc76194c2936f
SSDEEP

1536:Iiyy6UhZM4hubesrQLOJgY8ZZP8LHD4XWaNH71dLdG1iiFM2iG2zs4:IiyshZ5YesrQLOJgY8Zp8LHD4XWaNH7Q

Score

10^/10

babuk defense_evasion discovery execution impact ransomware

Malware Config

Extracted

Path

C:\Recovery\WindowsRE\How To Restore Your Files.txt

Ransom Note

############## [ babuk ransomware greetings you ] ############## Introduction ---------------------------------------------- Congratulations! If you see this note, your company've been randomly chosen for security audit and your company haven't passed it. Unfortunately your servers are encrypted, backups are encrtypted too or deleted. Our enctyption algorythms are strong and it's impossible to decrypt your stuff without our help. Only one method to restore all your network and systems is - to buy our universal decryption software. Follow simple steps that discribed down below and your data will be saved. In case you ignore this situation, the consequences could me much serious, than you can imagine. Guarantees ---------------------------------------------- The hack and system encryption wasn't compromised by your competitors or any other 3rd party, this is just and only our initiative and only thing we interested is profit. Accurding the previous sentence We are very much value of our reputation. If we do not do our work and liabilities, nobody will pay us. This is not in our interests. All our decryption software is perfectly tested and will decrypt your data. We guarantee full support and help through the all decryption process. As the proof of our abilities and honesty, we can decrypt few small files for free, check the link provided and ask any questions. Data leakage ---------------------------------------------- We have copied some quantity of data from your servers. Check those proofs and estimate the seriousness of consequences which can occur in case you ignore us: http://wavbeudogz6byhnardd2lkp2jafims3j7tj6k6qnywchn2csngvtffqd.onion/blog/104617a28c7b21518d506b079ca9d5221551f89d5d54025a1ec71dd33aacd896/ This link is private and only you can see it. Use tor browser to open link. Ignoring the interaction with us brings you the publishing your data in our public blog http://wavbeudogz6byhnardd2lkp2jafims3j7tj6k6qnywchn2csngvtffqd.onion/ Contact ---------------------------------------------- 1) Download tor browser: https://www.torproject.org/download/ 2) Open it 3) Follow this link in tor browser: http://vq3zf757tzpwhs7bulnr43d2rfg5fkvvfkhee2zhhzievuxrbnarmgqd.onion/4c43fb6f271eda10ac65ec0dc918f7ec851455acb98c1fe29f3b2feffe53c286 * 6 simple steps do minimize harm from ransomware. ----------------------------------------------------------------------------------------------------------------- Thousands of companies around the world are struggling on ransomware these days, and the most of companies are making the same mistakes again and again. Let’s figure out how to minimize harm and do not be a dumb and pathetic donkey which will make fun for journalists and so on.. 1. If you see small fella malicious .exe file never load it to virustotal.com or any other virus researching website. Otherwise the info about the hack is not a secret anymore. The fact that your company is under ransomware attack is already known by filthy predators data security agents who will post in their pity twitters the fresh known news “OMG ANOTHER RANSOMWARE NOW IT’S “Your company name LLC!!!!! We are all gonna die aaaaaa halp” 2. No any public announcements about the hack or data leakage. And do not applicate to law enforcement. If you commit this actions, more serious consequences can occur and you pay much more than a ransom amount. Law structures like GDPR in this case can oblige you to pay huge fine. 3. As soon as you see your network compromised, follow the link inside any note and follow instructions. 4. Calm your employees. Explain them that this is a drill. And you test your network security systems. 5. If you decide to hire the data recovery company, obligate them to do not inform anyone and any third party about details of the attack. We strongly do not recommend to cooperate with data recovery company, because they do absolutely nothing that you can do by yourself and take money for it. all communications with hackers could be conducted by your it department indipendently without any extra payments. 6. Do not try to decrypt your data via 3rd party software. Most of ransomware use strong encryption algorythm and you can harm your files by using 3rd party decryption software.

URLs

http://wavbeudogz6byhnardd2lkp2jafims3j7tj6k6qnywchn2csngvtffqd.onion/blog/104617a28c7b21518d506b079ca9d5221551f89d5d54025a1ec71dd33aacd896/

http://wavbeudogz6byhnardd2lkp2jafims3j7tj6k6qnywchn2csngvtffqd.onion/

http://vq3zf757tzpwhs7bulnr43d2rfg5fkvvfkhee2zhhzievuxrbnarmgqd.onion/4c43fb6f271eda10ac65ec0dc918f7ec851455acb98c1fe29f3b2feffe53c286

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 (189) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

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-1-5-21-3226857575-536881564-1522996248-1000\Control Panel\International\Geo\Nation	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe

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:	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe
File opened (read-only)	\??\I:	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe
File opened (read-only)	\??\P:	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe
File opened (read-only)	\??\A:	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe
File opened (read-only)	\??\L:	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe
File opened (read-only)	\??\M:	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe
File opened (read-only)	\??\S:	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe
File opened (read-only)	\??\H:	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe
File opened (read-only)	\??\Z:	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe
File opened (read-only)	\??\V:	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe
File opened (read-only)	\??\Q:	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe
File opened (read-only)	\??\T:	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe
File opened (read-only)	\??\Y:	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe
File opened (read-only)	\??\O:	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe
File opened (read-only)	\??\G:	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe
File opened (read-only)	\??\B:	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe
File opened (read-only)	\??\W:	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe
File opened (read-only)	\??\E:	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe
File opened (read-only)	\??\R:	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe
File opened (read-only)	\??\J:	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe
File opened (read-only)	\??\K:	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe
File opened (read-only)	\??\X:	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe
File opened (read-only)	\??\N:	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.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	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.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
4344	vssadmin.exe
4204	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3344	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe
3344	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	3680	vssvc.exe
Token: SeRestorePrivilege	3680	vssvc.exe
Token: SeAuditPrivilege	3680	vssvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3344 wrote to memory of 2212	3344	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe	82
PID 3344 wrote to memory of 2212	3344	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe	82
PID 2212 wrote to memory of 4344	2212	cmd.exe	87
PID 2212 wrote to memory of 4344	2212	cmd.exe	87
PID 3344 wrote to memory of 4620	3344	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe	89
PID 3344 wrote to memory of 4620	3344	2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe	89
PID 4620 wrote to memory of 4204	4620	cmd.exe	95
PID 4620 wrote to memory of 4204	4620	cmd.exe	95

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\2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe
"C:\Users\Admin\AppData\Local\Temp\2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe"
1⤵
- Checks computer location settings
- Enumerates connected drives
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3344
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2212
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:4344
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4620
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:4204

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3680

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\How To Restore Your Files.txt
1⤵
PID:1212

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

3

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

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Downloads

C:\Recovery\WindowsRE\How To Restore Your Files.txt

Filesize
4KB

MD5
655a099a144e6164ba891274ac9aa406

SHA1
66c4292b9f1b516ec0869adcd64efeb5c4bd1917

SHA256
cfad30c98f7fdd4c40a88994cb4d2f8499d67525ac92031d1f77595164b27b71

SHA512
3fc847a23a2fbc3a03607195451a22caf3cd867d4085796d8ddb4e6b490cd303524c22c75d9b9f204b17d62f089692fd8f11d9275a10e15da62ae3bcf2fedecf

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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