babuk | 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0

General

Target

3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.sample.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

Processes:

3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.sample.exe

description	ioc	process
File renamed	C:\Users\Admin\Pictures\CompressCheckpoint.tiff => C:\Users\Admin\Pictures\CompressCheckpoint.tiff.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.sample.exe
File renamed	C:\Users\Admin\Pictures\EnterRead.png => C:\Users\Admin\Pictures\EnterRead.png.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.sample.exe
File renamed	C:\Users\Admin\Pictures\SaveUnblock.tif => C:\Users\Admin\Pictures\SaveUnblock.tif.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.sample.exe
File opened for modification	C:\Users\Admin\Pictures\SaveUnblock.tif.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.sample.exe
File renamed	C:\Users\Admin\Pictures\ShowLimit.png => C:\Users\Admin\Pictures\ShowLimit.png.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.sample.exe
File opened for modification	C:\Users\Admin\Pictures\ClearMeasure.tiff.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.sample.exe
File opened for modification	C:\Users\Admin\Pictures\CompressCheckpoint.tiff.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.sample.exe
File opened for modification	C:\Users\Admin\Pictures\PublishPush.png.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.sample.exe
File opened for modification	C:\Users\Admin\Pictures\ShowLimit.png.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.sample.exe
File renamed	C:\Users\Admin\Pictures\SkipGet.crw => C:\Users\Admin\Pictures\SkipGet.crw.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.sample.exe
File opened for modification	C:\Users\Admin\Pictures\SkipGet.crw.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.sample.exe
File opened for modification	C:\Users\Admin\Pictures\ClearMeasure.tiff	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.sample.exe
File renamed	C:\Users\Admin\Pictures\ClearMeasure.tiff => C:\Users\Admin\Pictures\ClearMeasure.tiff.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.sample.exe
File opened for modification	C:\Users\Admin\Pictures\EnterRead.png.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.sample.exe
File renamed	C:\Users\Admin\Pictures\ReceiveConvert.png => C:\Users\Admin\Pictures\ReceiveConvert.png.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.sample.exe
File opened for modification	C:\Users\Admin\Pictures\CompressCheckpoint.tiff	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.sample.exe
File renamed	C:\Users\Admin\Pictures\PublishPush.png => C:\Users\Admin\Pictures\PublishPush.png.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.sample.exe
File opened for modification	C:\Users\Admin\Pictures\ReceiveConvert.png.babyk	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.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:

3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.sample.exe

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

1280 vssadmin.exe
3940 vssadmin.exe

pid	process
1280	vssadmin.exe
3940	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.sample.exe

pid	process
4796	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.sample.exe
4796	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.sample.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 3212 vssvc.exe
Token: SeRestorePrivilege 3212 vssvc.exe
Token: SeAuditPrivilege 3212 vssvc.exe

description	pid	process
Token: SeBackupPrivilege	3212	vssvc.exe
Token: SeRestorePrivilege	3212	vssvc.exe
Token: SeAuditPrivilege	3212	vssvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.sample.execmd.execmd.exe

description	pid	process	target process
PID 4796 wrote to memory of 3204	4796	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.sample.exe	cmd.exe
PID 4796 wrote to memory of 3204	4796	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.sample.exe	cmd.exe
PID 3204 wrote to memory of 3940	3204	cmd.exe	vssadmin.exe
PID 3204 wrote to memory of 3940	3204	cmd.exe	vssadmin.exe
PID 4796 wrote to memory of 364	4796	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.sample.exe	cmd.exe
PID 4796 wrote to memory of 364	4796	3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.sample.exe	cmd.exe
PID 364 wrote to memory of 1280	364	cmd.exe	vssadmin.exe
PID 364 wrote to memory of 1280	364	cmd.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.sample.exe
"C:\Users\Admin\AppData\Local\Temp\3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.sample.exe"
1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4796
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3204
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:3940
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:364
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:1280