babuk | 11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8

General

Target

11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
Size

79KB
MD5

fe4843e07dc9b0a11223c5797052d64d
SHA1

f3458f864f9c96668900a133d90870ebb7f9e296
SHA256

11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8
SHA512

ec7281382d235f6a80e7ef9065b56ef845bf6d9da5ed2cdb47f8380b602ac7b5aafdd0e72a6437a704686e7a77aeec9104a7cd591e88cf04ad32657d8678422b
SSDEEP

1536:HMSmkWBeG/vEbmsrQLOJgY8ZZP8LHD4XWaNH71dLdG1iiFM2iG2nsf:HMlBeQsmsrQLOJgY8Zp8LHD4XWaNH71i

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 22 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe

description	ioc	process
File opened for modification	C:\Users\Admin\Pictures\ExportDisconnect.tiff	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File renamed	C:\Users\Admin\Pictures\ExitReceive.tiff => C:\Users\Admin\Pictures\ExitReceive.tiff.babyk	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened for modification	C:\Users\Admin\Pictures\ExitReceive.tiff.babyk	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File renamed	C:\Users\Admin\Pictures\GroupCompare.tiff => C:\Users\Admin\Pictures\GroupCompare.tiff.babyk	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened for modification	C:\Users\Admin\Pictures\RevokeWatch.raw.babyk	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened for modification	C:\Users\Admin\Pictures\GroupCompare.tiff.babyk	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File renamed	C:\Users\Admin\Pictures\PublishSave.png => C:\Users\Admin\Pictures\PublishSave.png.babyk	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened for modification	C:\Users\Admin\Pictures\ResizeUpdate.raw.babyk	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File renamed	C:\Users\Admin\Pictures\WaitOut.tiff => C:\Users\Admin\Pictures\WaitOut.tiff.babyk	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened for modification	C:\Users\Admin\Pictures\ExitReceive.tiff	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened for modification	C:\Users\Admin\Pictures\ExportDisconnect.tiff.babyk	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File renamed	C:\Users\Admin\Pictures\ResizeUpdate.raw => C:\Users\Admin\Pictures\ResizeUpdate.raw.babyk	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File renamed	C:\Users\Admin\Pictures\WatchCompress.tif => C:\Users\Admin\Pictures\WatchCompress.tif.babyk	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened for modification	C:\Users\Admin\Pictures\GroupCompare.tiff	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File renamed	C:\Users\Admin\Pictures\ExportDisconnect.tiff => C:\Users\Admin\Pictures\ExportDisconnect.tiff.babyk	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File renamed	C:\Users\Admin\Pictures\MoveDeny.png => C:\Users\Admin\Pictures\MoveDeny.png.babyk	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened for modification	C:\Users\Admin\Pictures\MoveDeny.png.babyk	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened for modification	C:\Users\Admin\Pictures\PublishSave.png.babyk	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File renamed	C:\Users\Admin\Pictures\RevokeWatch.raw => C:\Users\Admin\Pictures\RevokeWatch.raw.babyk	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened for modification	C:\Users\Admin\Pictures\WaitOut.tiff	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened for modification	C:\Users\Admin\Pictures\WaitOut.tiff.babyk	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened for modification	C:\Users\Admin\Pictures\WatchCompress.tif.babyk	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.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:

11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe

description	ioc	process
File opened (read-only)	\??\T:	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened (read-only)	\??\F:	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened (read-only)	\??\H:	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened (read-only)	\??\X:	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened (read-only)	\??\V:	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened (read-only)	\??\Q:	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened (read-only)	\??\W:	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened (read-only)	\??\R:	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened (read-only)	\??\M:	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened (read-only)	\??\Z:	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened (read-only)	\??\B:	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened (read-only)	\??\I:	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened (read-only)	\??\O:	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened (read-only)	\??\K:	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened (read-only)	\??\A:	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened (read-only)	\??\S:	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened (read-only)	\??\G:	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened (read-only)	\??\J:	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened (read-only)	\??\E:	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened (read-only)	\??\Y:	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened (read-only)	\??\U:	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened (read-only)	\??\P:	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened (read-only)	\??\L:	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened (read-only)	\??\N:	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.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

3916 vssadmin.exe
960 vssadmin.exe

pid	process
3916	vssadmin.exe
960	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe

pid	process
2196	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
2196	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 2180 vssvc.exe
Token: SeRestorePrivilege 2180 vssvc.exe
Token: SeAuditPrivilege 2180 vssvc.exe

description	pid	process
Token: SeBackupPrivilege	2180	vssvc.exe
Token: SeRestorePrivilege	2180	vssvc.exe
Token: SeAuditPrivilege	2180	vssvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.execmd.execmd.exe

description	pid	process	target process
PID 2196 wrote to memory of 4372	2196	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe	cmd.exe
PID 2196 wrote to memory of 4372	2196	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe	cmd.exe
PID 4372 wrote to memory of 3916	4372	cmd.exe	vssadmin.exe
PID 4372 wrote to memory of 3916	4372	cmd.exe	vssadmin.exe
PID 2196 wrote to memory of 3816	2196	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe	cmd.exe
PID 2196 wrote to memory of 3816	2196	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe	cmd.exe
PID 3816 wrote to memory of 960	3816	cmd.exe	vssadmin.exe
PID 3816 wrote to memory of 960	3816	cmd.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
"C:\Users\Admin\AppData\Local\Temp\11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe"
1⤵
- Modifies extensions of user files
- Checks computer location settings
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4372
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:3916
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3816
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:960