babuk | a3788d8cf37d691627bdbc5add07b598fdde66bdfcdb05299b0976715b392a61

Analysis

max time kernel
119s
max time network
142s
platform
windows10_x64
resource
win10-en-20211208
submitted
15-12-2021 06:21

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General

Target

0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
Size

79KB
MD5

d3c83232b0e85485724c4029e8b93dc1
SHA1

2cfe3762a2e0c7e9a15bd617e693076f47d84028
SHA256

0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59
SHA512

07d83a9b09452eab085bec3819a1bd5353e2364c134cf87fe0c1a6770ed447d32cb954c98337ca6121fce2db1dff05a5ea5518239f4bb02ca50dabee02cab490

Score

10^/10

babuk ransomware

Malware Config

Extracted

Path

C:\How To Restore Your Files.txt

Ransom Note

----------- [ Hello world! ] -------------> ****BY BABUK LOCKER**** Ignore this for a long time, we will start reporting the hack to mainstream media and posting your data to the dark web. Now that we got your attention, lets make it short... -WHAT HAPPENED? ----------------------------------------------Some bad news... -All the files on your computer/network have been encrypted with SHA-256, ChaCha8 and ECC algorithms-translated, you can't open/decrypt your files on your own. -All your files such as customers info, scans, billing, insurance, passports... are in our hands now and we might decide to sell/make them public if you dont contact us. -Dont forget about GDPR ) ----------------------------------------------Some good news... -Contact us with the information below and you will recover all your data with our universal decryptor and we will permanently delete your info from our servers. 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. Just google us, we have the decryption keys and we never leaked information of any paying company. All our decryption software is perfectly tested and will decrypt your data. We will also provide support in case of problems. Also information on how all this happened and further information to help you increase your network security, so this won't happen again. How to contact us? Good decision) ---------------------------------------------- -Send us an email: [email protected] [email protected] make sure you check your spam folder for our reply. -qTox for instant support, download TOX (https://tox.chat/download.html): our tox ID: 81B2B719AB9BDDCE9116776FA01956C2D4BB8A7CA5464592593F9A25DA1F91174391480C6DC0 !!! DANGER !!! DO NOT MODIFY or try to RECOVER any files yourself. We WILL NOT be able to RESTORE them. !!! DANGER !!! Customer ID: S01E01AMS-DB7

Emails

[email protected]

URLs

https://tox.chat/download.html

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 9 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe

description	ioc	process
File opened for modification	C:\Users\Admin\Pictures\GroupUndo.png.babyk	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File renamed	C:\Users\Admin\Pictures\PublishBlock.png => C:\Users\Admin\Pictures\PublishBlock.png.babyk	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File opened for modification	C:\Users\Admin\Pictures\PublishBlock.png.babyk	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File opened for modification	C:\Users\Admin\Pictures\SendUpdate.raw.babyk	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File renamed	C:\Users\Admin\Pictures\EnterProtect.tiff => C:\Users\Admin\Pictures\EnterProtect.tiff.babyk	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File opened for modification	C:\Users\Admin\Pictures\EnterProtect.tiff	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File renamed	C:\Users\Admin\Pictures\GroupUndo.png => C:\Users\Admin\Pictures\GroupUndo.png.babyk	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File renamed	C:\Users\Admin\Pictures\SendUpdate.raw => C:\Users\Admin\Pictures\SendUpdate.raw.babyk	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File opened for modification	C:\Users\Admin\Pictures\EnterProtect.tiff.babyk	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.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:

0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe

description	ioc	process
File opened (read-only)	\??\R:	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File opened (read-only)	\??\T:	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File opened (read-only)	\??\A:	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File opened (read-only)	\??\L:	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File opened (read-only)	\??\Z:	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File opened (read-only)	\??\N:	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File opened (read-only)	\??\V:	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File opened (read-only)	\??\U:	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File opened (read-only)	\??\I:	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File opened (read-only)	\??\S:	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File opened (read-only)	\??\F:	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File opened (read-only)	\??\H:	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File opened (read-only)	\??\K:	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File opened (read-only)	\??\Y:	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File opened (read-only)	\??\P:	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File opened (read-only)	\??\G:	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File opened (read-only)	\??\X:	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File opened (read-only)	\??\B:	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File opened (read-only)	\??\M:	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File opened (read-only)	\??\Q:	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File opened (read-only)	\??\W:	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File opened (read-only)	\??\E:	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File opened (read-only)	\??\O:	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
File opened (read-only)	\??\J:	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.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

1324 vssadmin.exe
1232 vssadmin.exe

pid	process
1324	vssadmin.exe
1232	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe

pid	process
660	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
660	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 956 vssvc.exe
Token: SeRestorePrivilege 956 vssvc.exe
Token: SeAuditPrivilege 956 vssvc.exe

description	pid	process
Token: SeBackupPrivilege	956	vssvc.exe
Token: SeRestorePrivilege	956	vssvc.exe
Token: SeAuditPrivilege	956	vssvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.execmd.execmd.exe

description	pid	process	target process
PID 660 wrote to memory of 2892	660	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe	cmd.exe
PID 660 wrote to memory of 2892	660	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe	cmd.exe
PID 2892 wrote to memory of 1324	2892	cmd.exe	vssadmin.exe
PID 2892 wrote to memory of 1324	2892	cmd.exe	vssadmin.exe
PID 660 wrote to memory of 612	660	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe	cmd.exe
PID 660 wrote to memory of 612	660	0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe	cmd.exe
PID 612 wrote to memory of 1232	612	cmd.exe	vssadmin.exe
PID 612 wrote to memory of 1232	612	cmd.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe
"C:\Users\Admin\AppData\Local\Temp\0294114d5f411b6c47eb255d4ed6865df99d1c5252f4f585aabf44e6cbacaa59.exe"
1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:660
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2892
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:1324
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:612
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:1232

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:956

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Deletion

T1107

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

memory/612-117-0x0000000000000000-mapping.dmp

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memory/1232-118-0x0000000000000000-mapping.dmp

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memory/1324-116-0x0000000000000000-mapping.dmp

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memory/2892-115-0x0000000000000000-mapping.dmp

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