babuk | afcf265a1dcd9eab5aab270d48aa561e4ddeb71c05e32c857d3b809bb64c0430

General

Target

BABUK.exe
Size

38KB
MD5

be76ed428523b9aefe706aeaa72bb6b2
SHA1

b040f2bdee3999aad415396f9f79e43b2aa9452b
SHA256

afcf265a1dcd9eab5aab270d48aa561e4ddeb71c05e32c857d3b809bb64c0430
SHA512

d08870197e1234a8e7115fc8bc0a868841054a0f6d3153a9ad77dad1bb077da3c2af3bdeebf53c6304943a3169ef5ae4fde16ce0e45a421e9afc2b4041a07c5b

Score

10^/10

babuk ransomware

Malware Config

Extracted

Path

C:\MSOCache\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 11 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

BABUK.exe

description	ioc	process
File renamed	C:\Users\Admin\Pictures\CompressBlock.tiff => C:\Users\Admin\Pictures\CompressBlock.tiff.babyk	BABUK.exe
File renamed	C:\Users\Admin\Pictures\DebugWait.raw => C:\Users\Admin\Pictures\DebugWait.raw.babyk	BABUK.exe
File opened for modification	C:\Users\Admin\Pictures\BackupCheckpoint.tiff	BABUK.exe
File opened for modification	C:\Users\Admin\Pictures\CompressBlock.tiff	BABUK.exe
File renamed	C:\Users\Admin\Pictures\BackupCheckpoint.tiff => C:\Users\Admin\Pictures\BackupCheckpoint.tiff.babyk	BABUK.exe
File renamed	C:\Users\Admin\Pictures\DebugMerge.tif => C:\Users\Admin\Pictures\DebugMerge.tif.babyk	BABUK.exe
File opened for modification	C:\Users\Admin\Pictures\DenyTrace.tiff	BABUK.exe
File opened for modification	C:\Users\Admin\Pictures\EnterJoin.tiff	BABUK.exe
File renamed	C:\Users\Admin\Pictures\DenyTrace.tiff => C:\Users\Admin\Pictures\DenyTrace.tiff.babyk	BABUK.exe
File renamed	C:\Users\Admin\Pictures\EnterJoin.tiff => C:\Users\Admin\Pictures\EnterJoin.tiff.babyk	BABUK.exe
File renamed	C:\Users\Admin\Pictures\InstallFind.tif => C:\Users\Admin\Pictures\InstallFind.tif.babyk	BABUK.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.exe

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

524 vssadmin.exe
1968 vssadmin.exe

pid	process
524	vssadmin.exe
1968	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

BABUK.exe

pid	process
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe
1340	BABUK.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 1536 vssvc.exe
Token: SeRestorePrivilege 1536 vssvc.exe
Token: SeAuditPrivilege 1536 vssvc.exe

description	pid	process
Token: SeBackupPrivilege	1536	vssvc.exe
Token: SeRestorePrivilege	1536	vssvc.exe
Token: SeAuditPrivilege	1536	vssvc.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

BABUK.execmd.execmd.exe

description	pid	process	target process
PID 1340 wrote to memory of 1984	1340	BABUK.exe	cmd.exe
PID 1340 wrote to memory of 1984	1340	BABUK.exe	cmd.exe
PID 1340 wrote to memory of 1984	1340	BABUK.exe	cmd.exe
PID 1340 wrote to memory of 1984	1340	BABUK.exe	cmd.exe
PID 1984 wrote to memory of 524	1984	cmd.exe	vssadmin.exe
PID 1984 wrote to memory of 524	1984	cmd.exe	vssadmin.exe
PID 1984 wrote to memory of 524	1984	cmd.exe	vssadmin.exe
PID 1340 wrote to memory of 920	1340	BABUK.exe	cmd.exe
PID 1340 wrote to memory of 920	1340	BABUK.exe	cmd.exe
PID 1340 wrote to memory of 920	1340	BABUK.exe	cmd.exe
PID 1340 wrote to memory of 920	1340	BABUK.exe	cmd.exe
PID 920 wrote to memory of 1968	920	cmd.exe	vssadmin.exe
PID 920 wrote to memory of 1968	920	cmd.exe	vssadmin.exe
PID 920 wrote to memory of 1968	920	cmd.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\BABUK.exe
"C:\Users\Admin\AppData\Local\Temp\BABUK.exe"
1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1340
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1984
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:524
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:920
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:1968

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1536

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/524-6-0x0000000000000000-mapping.dmp

Download
memory/920-7-0x0000000000000000-mapping.dmp

Download
memory/1340-2-0x0000000076691000-0x0000000076693000-memory.dmp

Filesize
8KB

Download
memory/1340-4-0x00000000023C0000-0x00000000023D1000-memory.dmp

Filesize
68KB

Download
memory/1340-3-0x00000000009A0000-0x00000000009B1000-memory.dmp

Filesize
68KB

Download
memory/1968-8-0x0000000000000000-mapping.dmp

Download
memory/1984-5-0x0000000000000000-mapping.dmp

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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