babuk | 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e

General

Target

391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
Size

75KB
MD5

98b04a1cfdf18674315ec137733553a7
SHA1

dd1cdb8782b5e08695b006393d1e8ab4e447556e
SHA256

391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e
SHA512

3c5d9884a922b4b974c3dbd0e6f73292b7bfa761a1e50cfb1af07752261cf1a8ea2520a13f28f7040d788bff3837c62c7a6595f03b1c1be5f8d4ea9848f09cb5

Score

10^/10

babuk ransomware

Malware Config

Extracted

Path

C:\MSOCache\How To Restore Your Files.txt

Ransom Note

############## [ babyk 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://gtmx56k4hutn3ikv.onion/blog/ff6b763849c49971c7ef8508064a3d8681529c7f45e532ff9e3d9ec13165263b/ For additional confirmations, please chat with us/ In cases of ignoring us, the information will be released to the public in blog http://gtmx56k4hutn3ikv.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://babukq4e2p4wu4iq.onion/login.php?id=l6Kr29xLbfnq1f0jzES55LLmmrZPd8

URLs

http://gtmx56k4hutn3ikv.onion/blog/ff6b763849c49971c7ef8508064a3d8681529c7f45e532ff9e3d9ec13165263b/

http://gtmx56k4hutn3ikv.onion/

http://babukq4e2p4wu4iq.onion/login.php?id=l6Kr29xLbfnq1f0jzES55LLmmrZPd8

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 16 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe

description	ioc	process
File opened for modification	C:\Users\Admin\Pictures\InvokeSearch.tiff	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened for modification	C:\Users\Admin\Pictures\InvokeSearch.tiff.babyk	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened for modification	C:\Users\Admin\Pictures\RedoTrace.png.babyk	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File renamed	C:\Users\Admin\Pictures\BackupAdd.tiff => C:\Users\Admin\Pictures\BackupAdd.tiff.babyk	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File renamed	C:\Users\Admin\Pictures\AssertOptimize.png => C:\Users\Admin\Pictures\AssertOptimize.png.babyk	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened for modification	C:\Users\Admin\Pictures\AssertOptimize.png.babyk	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File renamed	C:\Users\Admin\Pictures\RedoTrace.png => C:\Users\Admin\Pictures\RedoTrace.png.babyk	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened for modification	C:\Users\Admin\Pictures\GrantUndo.raw.babyk	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File renamed	C:\Users\Admin\Pictures\InvokeSearch.tiff => C:\Users\Admin\Pictures\InvokeSearch.tiff.babyk	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened for modification	C:\Users\Admin\Pictures\RestartDisable.tif.babyk	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened for modification	C:\Users\Admin\Pictures\BackupAdd.tiff	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File renamed	C:\Users\Admin\Pictures\DebugTrace.png => C:\Users\Admin\Pictures\DebugTrace.png.babyk	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened for modification	C:\Users\Admin\Pictures\DebugTrace.png.babyk	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened for modification	C:\Users\Admin\Pictures\BackupAdd.tiff.babyk	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File renamed	C:\Users\Admin\Pictures\GrantUndo.raw => C:\Users\Admin\Pictures\GrantUndo.raw.babyk	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File renamed	C:\Users\Admin\Pictures\RestartDisable.tif => C:\Users\Admin\Pictures\RestartDisable.tif.babyk	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.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:

391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe

description	ioc	process
File opened (read-only)	\??\Z:	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened (read-only)	\??\Q:	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened (read-only)	\??\T:	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened (read-only)	\??\U:	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened (read-only)	\??\H:	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened (read-only)	\??\K:	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened (read-only)	\??\M:	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened (read-only)	\??\E:	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened (read-only)	\??\R:	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened (read-only)	\??\I:	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened (read-only)	\??\O:	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened (read-only)	\??\G:	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened (read-only)	\??\J:	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened (read-only)	\??\X:	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened (read-only)	\??\V:	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened (read-only)	\??\W:	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened (read-only)	\??\Y:	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened (read-only)	\??\P:	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened (read-only)	\??\F:	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened (read-only)	\??\B:	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened (read-only)	\??\A:	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened (read-only)	\??\S:	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened (read-only)	\??\L:	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
File opened (read-only)	\??\N:	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.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

1792 vssadmin.exe
1692 vssadmin.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe

pid process

1116 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 1160 vssvc.exe
Token: SeRestorePrivilege 1160 vssvc.exe
Token: SeAuditPrivilege 1160 vssvc.exe

pid	process
1792	vssadmin.exe
1692	vssadmin.exe

pid	process
1116	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe

description	pid	process
Token: SeBackupPrivilege	1160	vssvc.exe
Token: SeRestorePrivilege	1160	vssvc.exe
Token: SeAuditPrivilege	1160	vssvc.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.execmd.execmd.exe

description	pid	process	target process
PID 1116 wrote to memory of 1972	1116	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe	cmd.exe
PID 1116 wrote to memory of 1972	1116	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe	cmd.exe
PID 1116 wrote to memory of 1972	1116	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe	cmd.exe
PID 1116 wrote to memory of 1972	1116	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe	cmd.exe
PID 1972 wrote to memory of 1792	1972	cmd.exe	vssadmin.exe
PID 1972 wrote to memory of 1792	1972	cmd.exe	vssadmin.exe
PID 1972 wrote to memory of 1792	1972	cmd.exe	vssadmin.exe
PID 1116 wrote to memory of 472	1116	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe	cmd.exe
PID 1116 wrote to memory of 472	1116	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe	cmd.exe
PID 1116 wrote to memory of 472	1116	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe	cmd.exe
PID 1116 wrote to memory of 472	1116	391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe	cmd.exe
PID 472 wrote to memory of 1692	472	cmd.exe	vssadmin.exe
PID 472 wrote to memory of 1692	472	cmd.exe	vssadmin.exe
PID 472 wrote to memory of 1692	472	cmd.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe
"C:\Users\Admin\AppData\Local\Temp\391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.sample.exe"
1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1116
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1972
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:1792
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:472
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:1692

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1160

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/472-63-0x0000000000000000-mapping.dmp

Download
memory/1116-60-0x00000000767B1000-0x00000000767B3000-memory.dmp

Filesize
8KB

Download
memory/1692-64-0x0000000000000000-mapping.dmp

Download
memory/1792-62-0x0000000000000000-mapping.dmp

Download
memory/1972-61-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads