babuk | 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0

General

Target

3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
Size

79KB
MD5

012393fc32a1be21437634a2de7019f1
SHA1

a5c223240be45c0e29a9c119b242ee0dc87968e9
SHA256

3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0
SHA512

58e8cb9e1420eddbd8b864021184ca892ead2f9e5e24877cacacac786cedfeb4cdfbcbdb73dc0c444949dfd50a4a1b2f9659f0cf2210099cfd99d36de8a1f801

Score

10^/10

babuk ransomware

Malware Config

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 18 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File renamed	C:\Users\Admin\Pictures\UpdateGrant.tiff => C:\Users\Admin\Pictures\UpdateGrant.tiff.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File renamed	C:\Users\Admin\Pictures\WatchPublish.crw => C:\Users\Admin\Pictures\WatchPublish.crw.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened for modification	C:\Users\Admin\Pictures\WatchPublish.crw.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened for modification	C:\Users\Admin\Pictures\CloseUnprotect.tiff.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened for modification	C:\Users\Admin\Pictures\ClearRead.raw.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File renamed	C:\Users\Admin\Pictures\HideTest.png => C:\Users\Admin\Pictures\HideTest.png.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File renamed	C:\Users\Admin\Pictures\ResolveDisable.raw => C:\Users\Admin\Pictures\ResolveDisable.raw.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened for modification	C:\Users\Admin\Pictures\UpdateGrant.tiff	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened for modification	C:\Users\Admin\Pictures\HideTest.png.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File renamed	C:\Users\Admin\Pictures\InvokeSubmit.crw => C:\Users\Admin\Pictures\InvokeSubmit.crw.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened for modification	C:\Users\Admin\Pictures\InvokeSubmit.crw.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File renamed	C:\Users\Admin\Pictures\PublishEdit.raw => C:\Users\Admin\Pictures\PublishEdit.raw.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened for modification	C:\Users\Admin\Pictures\PublishEdit.raw.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File renamed	C:\Users\Admin\Pictures\ClearRead.raw => C:\Users\Admin\Pictures\ClearRead.raw.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File renamed	C:\Users\Admin\Pictures\CloseUnprotect.tiff => C:\Users\Admin\Pictures\CloseUnprotect.tiff.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened for modification	C:\Users\Admin\Pictures\ResolveDisable.raw.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened for modification	C:\Users\Admin\Pictures\UpdateGrant.tiff.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened for modification	C:\Users\Admin\Pictures\CloseUnprotect.tiff	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.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

description	ioc	Process
File opened (read-only)	\??\O:	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened (read-only)	\??\N:	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened (read-only)	\??\M:	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened (read-only)	\??\T:	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened (read-only)	\??\H:	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened (read-only)	\??\L:	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened (read-only)	\??\K:	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened (read-only)	\??\Z:	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened (read-only)	\??\Q:	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened (read-only)	\??\Y:	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened (read-only)	\??\U:	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened (read-only)	\??\A:	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened (read-only)	\??\S:	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened (read-only)	\??\F:	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened (read-only)	\??\V:	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened (read-only)	\??\J:	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened (read-only)	\??\X:	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened (read-only)	\??\W:	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened (read-only)	\??\E:	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened (read-only)	\??\R:	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened (read-only)	\??\I:	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened (read-only)	\??\P:	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened (read-only)	\??\G:	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
File opened (read-only)	\??\B:	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.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

pid	Process
4072	vssadmin.exe
3192	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4444	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
4444	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	3156	vssvc.exe
Token: SeRestorePrivilege	3156	vssvc.exe
Token: SeAuditPrivilege	3156	vssvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4444 wrote to memory of 4932	4444	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe	75
PID 4444 wrote to memory of 4932	4444	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe	75
PID 4932 wrote to memory of 3192	4932	cmd.exe	78
PID 4932 wrote to memory of 3192	4932	cmd.exe	78
PID 4444 wrote to memory of 4036	4444	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe	81
PID 4444 wrote to memory of 4036	4444	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe	81
PID 4036 wrote to memory of 4072	4036	cmd.exe	83
PID 4036 wrote to memory of 4072	4036	cmd.exe	83

C:\Users\Admin\AppData\Local\Temp\3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
"C:\Users\Admin\AppData\Local\Temp\3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe"
1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4444
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4932
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:3192
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4036
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:4072