babuk | 8140004ff3cf4923c928708505754497e48d26d822a95d63bd2ed54e14f19766

General

Target

BABUK_2021-01-14_02-37.bin.exe
Size

196KB
MD5

9594d3a407ab03fc40b9539c63907bc2
SHA1

cce903f046fada4ed779539c00976c98ed0b93ee
SHA256

8140004ff3cf4923c928708505754497e48d26d822a95d63bd2ed54e14f19766
SHA512

d7fbdac93b3bf6f1ce133d026746f46dd67165d48c7bc6636eeff01c4701772ad617c851b29ac847f9d795d9b6c65770766bdf1333baf8a61d30bec137f21981

Score

10^/10

babuk ransomware

Malware Config

Extracted

Path

C:\Boot\bg-BG\How To Restore Your Files.txt

Ransom Note

----------- [ Hello, Schauer Agrotronic ] -------------> ****BY BABUK LOCKER**** 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. 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 more than 50 gb from your internal network, here are some proofs, for additional confirmations, please chat with us In cases of ignoring us, the information will be released to the public. How to contact us? ---------------------------------------------- Using TOR Browser ( https://www.torproject.org/download/ ): http://babukq4e2p4wu4iq.onion/login.php?id=p9gFgBg5TsdcO3mV9mf2RJlJoI0iy1 !!! DANGER !!! DO NOT MODIFY or try to RECOVER any files yourself. We WILL NOT be able to RESTORE them. !!! DANGER !!

URLs

http://babukq4e2p4wu4iq.onion/login.php?id=p9gFgBg5TsdcO3mV9mf2RJlJoI0iy1

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 3 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

BABUK_2021-01-14_02-37.bin.exe

description	ioc	process
File opened for modification	C:\Users\Admin\Pictures\PingWrite.tiff	BABUK_2021-01-14_02-37.bin.exe
File renamed	C:\Users\Admin\Pictures\RegisterWrite.raw => C:\Users\Admin\Pictures\RegisterWrite.raw.babyk	BABUK_2021-01-14_02-37.bin.exe
File renamed	C:\Users\Admin\Pictures\PingWrite.tiff => C:\Users\Admin\Pictures\PingWrite.tiff.babyk	BABUK_2021-01-14_02-37.bin.exe

Drops startup file 1 IoCs

Processes:

BABUK_2021-01-14_02-37.bin.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\How To Restore Your Files.txt BABUK_2021-01-14_02-37.bin.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\How To Restore Your Files.txt	BABUK_2021-01-14_02-37.bin.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:

BABUK_2021-01-14_02-37.bin.exe

description	ioc	process
File opened (read-only)	\??\M:	BABUK_2021-01-14_02-37.bin.exe
File opened (read-only)	\??\P:	BABUK_2021-01-14_02-37.bin.exe
File opened (read-only)	\??\F:	BABUK_2021-01-14_02-37.bin.exe
File opened (read-only)	\??\G:	BABUK_2021-01-14_02-37.bin.exe
File opened (read-only)	\??\Z:	BABUK_2021-01-14_02-37.bin.exe
File opened (read-only)	\??\B:	BABUK_2021-01-14_02-37.bin.exe
File opened (read-only)	\??\Y:	BABUK_2021-01-14_02-37.bin.exe
File opened (read-only)	\??\U:	BABUK_2021-01-14_02-37.bin.exe
File opened (read-only)	\??\I:	BABUK_2021-01-14_02-37.bin.exe
File opened (read-only)	\??\H:	BABUK_2021-01-14_02-37.bin.exe
File opened (read-only)	\??\X:	BABUK_2021-01-14_02-37.bin.exe
File opened (read-only)	\??\N:	BABUK_2021-01-14_02-37.bin.exe
File opened (read-only)	\??\Q:	BABUK_2021-01-14_02-37.bin.exe
File opened (read-only)	\??\W:	BABUK_2021-01-14_02-37.bin.exe
File opened (read-only)	\??\R:	BABUK_2021-01-14_02-37.bin.exe
File opened (read-only)	\??\T:	BABUK_2021-01-14_02-37.bin.exe
File opened (read-only)	\??\L:	BABUK_2021-01-14_02-37.bin.exe
File opened (read-only)	\??\K:	BABUK_2021-01-14_02-37.bin.exe
File opened (read-only)	\??\V:	BABUK_2021-01-14_02-37.bin.exe
File opened (read-only)	\??\E:	BABUK_2021-01-14_02-37.bin.exe
File opened (read-only)	\??\O:	BABUK_2021-01-14_02-37.bin.exe
File opened (read-only)	\??\A:	BABUK_2021-01-14_02-37.bin.exe
File opened (read-only)	\??\S:	BABUK_2021-01-14_02-37.bin.exe
File opened (read-only)	\??\J:	BABUK_2021-01-14_02-37.bin.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

1172 vssadmin.exe
520 vssadmin.exe

pid	process
1172	vssadmin.exe
520	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

BABUK_2021-01-14_02-37.bin.exe

pid	process
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe
4688	BABUK_2021-01-14_02-37.bin.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 3280 vssvc.exe
Token: SeRestorePrivilege 3280 vssvc.exe
Token: SeAuditPrivilege 3280 vssvc.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

ShellExperienceHost.exe

pid process

2056 ShellExperienceHost.exe
2056 ShellExperienceHost.exe

description	pid	process
Token: SeBackupPrivilege	3280	vssvc.exe
Token: SeRestorePrivilege	3280	vssvc.exe
Token: SeAuditPrivilege	3280	vssvc.exe

pid	process
2056	ShellExperienceHost.exe
2056	ShellExperienceHost.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

BABUK_2021-01-14_02-37.bin.execmd.execmd.exe

description	pid	process	target process
PID 4688 wrote to memory of 3640	4688	BABUK_2021-01-14_02-37.bin.exe	cmd.exe
PID 4688 wrote to memory of 3640	4688	BABUK_2021-01-14_02-37.bin.exe	cmd.exe
PID 3640 wrote to memory of 1172	3640	cmd.exe	vssadmin.exe
PID 3640 wrote to memory of 1172	3640	cmd.exe	vssadmin.exe
PID 4688 wrote to memory of 832	4688	BABUK_2021-01-14_02-37.bin.exe	cmd.exe
PID 4688 wrote to memory of 832	4688	BABUK_2021-01-14_02-37.bin.exe	cmd.exe
PID 832 wrote to memory of 520	832	cmd.exe	vssadmin.exe
PID 832 wrote to memory of 520	832	cmd.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\BABUK_2021-01-14_02-37.bin.exe
"C:\Users\Admin\AppData\Local\Temp\BABUK_2021-01-14_02-37.bin.exe"
1⤵
- Modifies extensions of user files
- Drops startup file
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4688
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3640
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:1172
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:832
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:520

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3280

C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe
"C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe" -ServerName:App.AppXtk181tbxbce2qsex02s8tw7hfxa9xb3t.mca
1⤵
- Suspicious use of SetWindowsHookEx
PID:2056

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

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Downloads

memory/520-10-0x0000000000000000-mapping.dmp

Download
memory/832-9-0x0000000000000000-mapping.dmp

Download
memory/1172-8-0x0000000000000000-mapping.dmp

Download
memory/3640-5-0x0000000000000000-mapping.dmp

Download
memory/4688-2-0x0000000006B40000-0x0000000006B41000-memory.dmp

Filesize
4KB

Download
memory/4688-3-0x0000000006CF0000-0x0000000006CF1000-memory.dmp

Filesize
4KB

Download
memory/4688-4-0x00000000074F0000-0x00000000074F1000-memory.dmp

Filesize
4KB

Download
memory/4688-6-0x0000000005010000-0x000000000501B000-memory.dmp

Filesize
44KB

Download
memory/4688-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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