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 10 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\AssertCopy.tiff	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File renamed	C:\Users\Admin\Pictures\AssertCopy.tiff => C:\Users\Admin\Pictures\AssertCopy.tiff.babyk	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened for modification	C:\Users\Admin\Pictures\AssertCopy.tiff.babyk	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File renamed	C:\Users\Admin\Pictures\ConvertToUpdate.raw => C:\Users\Admin\Pictures\ConvertToUpdate.raw.babyk	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened for modification	C:\Users\Admin\Pictures\ConvertToUpdate.raw.babyk	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File renamed	C:\Users\Admin\Pictures\DisableDebug.tiff => C:\Users\Admin\Pictures\DisableDebug.tiff.babyk	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File renamed	C:\Users\Admin\Pictures\RepairSet.crw => C:\Users\Admin\Pictures\RepairSet.crw.babyk	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened for modification	C:\Users\Admin\Pictures\DisableDebug.tiff	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened for modification	C:\Users\Admin\Pictures\DisableDebug.tiff.babyk	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
File opened for modification	C:\Users\Admin\Pictures\RepairSet.crw.babyk	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

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

pid	Process
584	vssadmin.exe
2040	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1468	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	1136	vssvc.exe
Token: SeRestorePrivilege	1136	vssvc.exe
Token: SeAuditPrivilege	1136	vssvc.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1468 wrote to memory of 1116	1468	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe	27
PID 1468 wrote to memory of 1116	1468	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe	27
PID 1468 wrote to memory of 1116	1468	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe	27
PID 1468 wrote to memory of 1116	1468	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe	27
PID 1116 wrote to memory of 584	1116	cmd.exe	29
PID 1116 wrote to memory of 584	1116	cmd.exe	29
PID 1116 wrote to memory of 584	1116	cmd.exe	29
PID 1468 wrote to memory of 1888	1468	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe	33
PID 1468 wrote to memory of 1888	1468	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe	33
PID 1468 wrote to memory of 1888	1468	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe	33
PID 1468 wrote to memory of 1888	1468	11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe	33
PID 1888 wrote to memory of 2040	1888	cmd.exe	35
PID 1888 wrote to memory of 2040	1888	cmd.exe	35
PID 1888 wrote to memory of 2040	1888	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe
"C:\Users\Admin\AppData\Local\Temp\11b02dab624fe46946921638718117644c3a91da72a9c9b08c7fb98965a08cd8.exe"
1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1468
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1116
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:584
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1888
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:2040