babuk | 9a089790e04683ebf37d9746e0284322f59c46eef2a86cc231839482f323e871

General

Target

e_win.exe
Size

75KB
MD5

a73d9dc904349b9c967dc6a724806b2d
SHA1

e3e6dfd5e0c29acefe90471e46142c120278e9f0
SHA256

9a089790e04683ebf37d9746e0284322f59c46eef2a86cc231839482f323e871
SHA512

39f2fd0d8f7b63b78a33f44f89d5c01a6ec6c5c194d91d1a8280708e76a13aae0507893779d1e6545fbbdde74b224043e2dfa8b73b5cb4a3265978fdb7625f6d

Score

10^/10

babuk ransomware

Malware Config

Extracted

Path

C:\How To Restore Your Files.txt

Ransom Note

############## [ babuk ransomware ] ############## * What happend? ---------------------------------------------- Your computers and servers are encrypted, backups are deleted from your network and copied. We use strong encryption algorithms, so you cannot decrypt your data without us. But you can restore everything by purchasing a special program from us - a universal decoder. This program will restore your entire network. Follow our instructions below and you will recover all your data. If you continue to ignore this for a long time, we will start reporting the hack to mainstream media and posting your data to the dark web. * What guarantees? ---------------------------------------------- We value 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 will also provide support in case of problems. We guarantee to decrypt one file for free. Go to the site and contact us. * What information compromised? ---------------------------------------------- We copied many data from your internal network, here are some proofs (private link): http://wavbeudogz6byhnardd2lkp2jafims3j7tj6k6qnywchn2csngvtffqd.onion/blog/a4c7531a5c7287d8b77d240e0ee1755d5b257fb1f9fabbf89989d96304ddff2b/ Screenshots: https://i.imgur.com/66Yz8gK.png https://i.imgur.com/udaME7G.png https://i.imgur.com/ExpwRFZ.png https://i.imgur.com/TmotQHx.png https://i.imgur.com/TmotQHx.png https://i.imgur.com/KyDqrjO.png https://i.imgur.com/ISCG6BB.png https://i.imgur.com/CKVnYd4.png https://i.imgur.com/Ga17uEy.png https://i.imgur.com/CFzkdY5.png https://i.imgur.com/aeArm5h.png https://i.imgur.com/sYkAv3o.png https://i.imgur.com/NbWcEBt.png https://i.imgur.com/Yo72lP5.png https://i.imgur.com/N1UTyCk.png https://i.imgur.com/0cDog0s.png For additional confirmations, please chat with us/ In cases of ignoring us, the information will be released to the public in blog http://wavbeudogz6byhnardd2lkp2jafims3j7tj6k6qnywchn2csngvtffqd.onion/ * How to contact us? ---------------------------------------------- 1) Download for browser: https://www.torproject.org/download/ 2) Open it 3) Follow this link in tor browser: http://tsu2dpiiv4zjzfyq73eibemit2qyrimbbb6lhpm6n5ihgallom5lhdyd.onion/f57e6bc503b702905293ce18001127863b953b9cf1194a0eca02f6c8aec6dae5 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. 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.

URLs

http://wavbeudogz6byhnardd2lkp2jafims3j7tj6k6qnywchn2csngvtffqd.onion/blog/a4c7531a5c7287d8b77d240e0ee1755d5b257fb1f9fabbf89989d96304ddff2b/

https://i.imgur.com/66Yz8gK.png

https://i.imgur.com/udaME7G.png

https://i.imgur.com/ExpwRFZ.png

https://i.imgur.com/TmotQHx.png

https://i.imgur.com/KyDqrjO.png

https://i.imgur.com/ISCG6BB.png

https://i.imgur.com/CKVnYd4.png

https://i.imgur.com/Ga17uEy.png

https://i.imgur.com/CFzkdY5.png

https://i.imgur.com/aeArm5h.png

https://i.imgur.com/sYkAv3o.png

https://i.imgur.com/NbWcEBt.png

https://i.imgur.com/Yo72lP5.png

https://i.imgur.com/N1UTyCk.png

https://i.imgur.com/0cDog0s.png

http://wavbeudogz6byhnardd2lkp2jafims3j7tj6k6qnywchn2csngvtffqd.onion/

http://tsu2dpiiv4zjzfyq73eibemit2qyrimbbb6lhpm6n5ihgallom5lhdyd.onion/f57e6bc503b702905293ce18001127863b953b9cf1194a0eca02f6c8aec6dae5

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 13 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

e_win.exe

description	ioc	process
File renamed	C:\Users\Admin\Pictures\FormatPing.tiff => C:\Users\Admin\Pictures\FormatPing.tiff.babyk	e_win.exe
File opened for modification	C:\Users\Admin\Pictures\FormatPing.tiff.babyk	e_win.exe
File renamed	C:\Users\Admin\Pictures\MeasureMerge.crw => C:\Users\Admin\Pictures\MeasureMerge.crw.babyk	e_win.exe
File opened for modification	C:\Users\Admin\Pictures\RedoSwitch.tiff	e_win.exe
File renamed	C:\Users\Admin\Pictures\RedoSwitch.tiff => C:\Users\Admin\Pictures\RedoSwitch.tiff.babyk	e_win.exe
File opened for modification	C:\Users\Admin\Pictures\RedoSwitch.tiff.babyk	e_win.exe
File opened for modification	C:\Users\Admin\Pictures\ConvertFromBlock.tiff	e_win.exe
File renamed	C:\Users\Admin\Pictures\ConvertFromBlock.tiff => C:\Users\Admin\Pictures\ConvertFromBlock.tiff.babyk	e_win.exe
File opened for modification	C:\Users\Admin\Pictures\MeasureMerge.crw.babyk	e_win.exe
File renamed	C:\Users\Admin\Pictures\WaitUninstall.tif => C:\Users\Admin\Pictures\WaitUninstall.tif.babyk	e_win.exe
File opened for modification	C:\Users\Admin\Pictures\WaitUninstall.tif.babyk	e_win.exe
File opened for modification	C:\Users\Admin\Pictures\FormatPing.tiff	e_win.exe
File opened for modification	C:\Users\Admin\Pictures\ConvertFromBlock.tiff.babyk	e_win.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:

e_win.exe

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

804 vssadmin.exe
3464 vssadmin.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

e_win.exe

pid process

616 e_win.exe
616 e_win.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 3808 vssvc.exe
Token: SeRestorePrivilege 3808 vssvc.exe
Token: SeAuditPrivilege 3808 vssvc.exe

pid	process
804	vssadmin.exe
3464	vssadmin.exe

pid	process
616	e_win.exe
616	e_win.exe

description	pid	process
Token: SeBackupPrivilege	3808	vssvc.exe
Token: SeRestorePrivilege	3808	vssvc.exe
Token: SeAuditPrivilege	3808	vssvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

e_win.execmd.execmd.exe

description	pid	process	target process
PID 616 wrote to memory of 2900	616	e_win.exe	cmd.exe
PID 616 wrote to memory of 2900	616	e_win.exe	cmd.exe
PID 2900 wrote to memory of 804	2900	cmd.exe	vssadmin.exe
PID 2900 wrote to memory of 804	2900	cmd.exe	vssadmin.exe
PID 616 wrote to memory of 1288	616	e_win.exe	cmd.exe
PID 616 wrote to memory of 1288	616	e_win.exe	cmd.exe
PID 1288 wrote to memory of 3464	1288	cmd.exe	vssadmin.exe
PID 1288 wrote to memory of 3464	1288	cmd.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\e_win.exe
"C:\Users\Admin\AppData\Local\Temp\e_win.exe"
1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:616
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2900
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:804
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1288
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:3464

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3808

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Deletion

2

T1107

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

Loading Replay Monitor...

Downloads

memory/616-3-0x0000000003750000-0x0000000003751000-memory.dmp

Filesize
4KB

Download
memory/616-2-0x0000000002F50000-0x0000000002F51000-memory.dmp

Filesize
4KB

Download
memory/804-5-0x0000000000000000-mapping.dmp

Download
memory/1288-6-0x0000000000000000-mapping.dmp

Download
memory/2900-4-0x0000000000000000-mapping.dmp

Download
memory/3464-7-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads