babuk | f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b

General

Target

f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe
Size

281KB
MD5

9f3970b2f9304dd5335f935f3620615f
SHA1

350099ddb478c5a6c23fb93bb463b845581bbbff
SHA256

f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b
SHA512

ad8838c34e056fd76f04dbfd416d6b2ad978b3cbf559becf00b98ca0436d332109fe907ef72090a1bb125613d5613a7c85cb165f5f75a263e12542e7bce4e909
SSDEEP

6144:z6EfK6u5yvXIq1FYBthpg+Ji7NuOMucQQ6ALqp:xLuEXIqHyhaqi7NRMucQR

Score

10^/10

babuk defense_evasion execution impact ransomware

Malware Config

Extracted

Path

C:\Users\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/c9daf42fcfa6aca8432ecb7ffeff7f5e4e75f4ddd75f428c629bf6aa6a108a08/ 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://tsu2dpiiv4zjzfyq73eibemit2qyrimbbb6lhpm6n5ihgallom5lhdyd.onion/3eb91fac85bb0db5dde432443e998a3863f0f1c76e3449319178e6b78f5d3f44 * 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 algorthm and you can harm your files by using 3rd party decryption software.

URLs

http://wavbeudogz6byhnardd2lkp2jafims3j7tj6k6qnywchn2csngvtffqd.onion/blog/c9daf42fcfa6aca8432ecb7ffeff7f5e4e75f4ddd75f428c629bf6aa6a108a08/

http://wavbeudogz6byhnardd2lkp2jafims3j7tj6k6qnywchn2csngvtffqd.onion/

http://tsu2dpiiv4zjzfyq73eibemit2qyrimbbb6lhpm6n5ihgallom5lhdyd.onion/3eb91fac85bb0db5dde432443e998a3863f0f1c76e3449319178e6b78f5d3f44

Signatures

Babuk Locker
RaaS first seen in 2021 initially called Vasa Locker.
ransomware 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 (220) 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)	\??\L:	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe
File opened (read-only)	\??\X:	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe
File opened (read-only)	\??\R:	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe
File opened (read-only)	\??\Y:	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe
File opened (read-only)	\??\A:	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe
File opened (read-only)	\??\S:	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe
File opened (read-only)	\??\P:	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe
File opened (read-only)	\??\J:	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe
File opened (read-only)	\??\K:	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe
File opened (read-only)	\??\Z:	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe
File opened (read-only)	\??\Q:	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe
File opened (read-only)	\??\W:	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe
File opened (read-only)	\??\T:	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe
File opened (read-only)	\??\O:	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe
File opened (read-only)	\??\M:	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe
File opened (read-only)	\??\U:	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe
File opened (read-only)	\??\G:	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe
File opened (read-only)	\??\V:	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe
File opened (read-only)	\??\N:	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe
File opened (read-only)	\??\E:	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe
File opened (read-only)	\??\I:	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe
File opened (read-only)	\??\H:	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe
File opened (read-only)	\??\B:	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.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

pid	Process
2484	vssadmin.exe
2864	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1640	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	2516	vssvc.exe
Token: SeRestorePrivilege	2516	vssvc.exe
Token: SeAuditPrivilege	2516	vssvc.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1640 wrote to memory of 2504	1640	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe	28
PID 1640 wrote to memory of 2504	1640	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe	28
PID 1640 wrote to memory of 2504	1640	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe	28
PID 1640 wrote to memory of 2504	1640	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe	28
PID 2504 wrote to memory of 2484	2504	cmd.exe	30
PID 2504 wrote to memory of 2484	2504	cmd.exe	30
PID 2504 wrote to memory of 2484	2504	cmd.exe	30
PID 1640 wrote to memory of 2804	1640	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe	34
PID 1640 wrote to memory of 2804	1640	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe	34
PID 1640 wrote to memory of 2804	1640	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe	34
PID 1640 wrote to memory of 2804	1640	f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe	34
PID 2804 wrote to memory of 2864	2804	cmd.exe	36
PID 2804 wrote to memory of 2864	2804	cmd.exe	36
PID 2804 wrote to memory of 2864	2804	cmd.exe	36

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\f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe
"C:\Users\Admin\AppData\Local\Temp\f978f89aac0a76c4b568194b502c8367ca804ab2eeb0c4efe1765d84b942a17b.exe"
1⤵
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1640
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2504
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:2484
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2804
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:2864

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2516

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

1

T1047

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:\Users\How To Restore Your Files.txt

Filesize
4KB

MD5
1dcf5c7c2e5edb7783ea492707605050

SHA1
d0b81b7e81ef6b6567b28dba0c0a8738937cec32

SHA256
f35266ab980be271447d8220b8e233b2ce36d849db6a5033fc023cbcae51bdf8

SHA512
a22c82fdc35b3557707588f83f151ca697a0f2956a1b77b525a6266e6bc2e87e5f56a09e20e612a38318da2e3044e6c4c3b0e8e359c1c7582265233198b43be9

Download Submit
memory/1640-0-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1640-1-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1640-4-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1640-3-0x0000000000401000-0x0000000000414000-memory.dmp

Filesize
76KB

Download
memory/1640-2-0x0000000000270000-0x00000000002AC000-memory.dmp

Filesize
240KB

Download
memory/1640-6-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1640-5-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/1640-296-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1640-298-0x0000000000401000-0x0000000000414000-memory.dmp

Filesize
76KB

Download
memory/1640-297-0x0000000000270000-0x00000000002AC000-memory.dmp

Filesize
240KB

Download

Analysis

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