babuk | 245e191bfe998ad9ef2d6b169af22f3c290e9950234f8ddd0f4a03cb3eebf761

General

Target

a499f810c2e52fe9f8adcd5817b2d985.exe
Size

79KB
MD5

a499f810c2e52fe9f8adcd5817b2d985
SHA1

b23523cc4d6092a90aeb4522b21f94c335864090
SHA256

245e191bfe998ad9ef2d6b169af22f3c290e9950234f8ddd0f4a03cb3eebf761
SHA512

16d277a56c8b864b0c22b28305ba442b33ca2e5e0be32d193a19887c4c9193c9e192e9e1638af4e40600508cc38c7004e3a18007f281ad1577e0c6a428a5ea5b

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 13 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

a499f810c2e52fe9f8adcd5817b2d985.exe

description	ioc	process
File opened for modification	C:\Users\Admin\Pictures\InvokeTest.crw.babyk	a499f810c2e52fe9f8adcd5817b2d985.exe
File renamed	C:\Users\Admin\Pictures\RegisterBackup.tif => C:\Users\Admin\Pictures\RegisterBackup.tif.babyk	a499f810c2e52fe9f8adcd5817b2d985.exe
File renamed	C:\Users\Admin\Pictures\CompareUnregister.png => C:\Users\Admin\Pictures\CompareUnregister.png.babyk	a499f810c2e52fe9f8adcd5817b2d985.exe
File renamed	C:\Users\Admin\Pictures\ClearDisable.crw => C:\Users\Admin\Pictures\ClearDisable.crw.babyk	a499f810c2e52fe9f8adcd5817b2d985.exe
File opened for modification	C:\Users\Admin\Pictures\ClearDisable.crw.babyk	a499f810c2e52fe9f8adcd5817b2d985.exe
File renamed	C:\Users\Admin\Pictures\RenameSelect.png => C:\Users\Admin\Pictures\RenameSelect.png.babyk	a499f810c2e52fe9f8adcd5817b2d985.exe
File opened for modification	C:\Users\Admin\Pictures\RenameSelect.png.babyk	a499f810c2e52fe9f8adcd5817b2d985.exe
File renamed	C:\Users\Admin\Pictures\ResumeUnregister.tiff => C:\Users\Admin\Pictures\ResumeUnregister.tiff.babyk	a499f810c2e52fe9f8adcd5817b2d985.exe
File opened for modification	C:\Users\Admin\Pictures\ResumeUnregister.tiff.babyk	a499f810c2e52fe9f8adcd5817b2d985.exe
File opened for modification	C:\Users\Admin\Pictures\RegisterBackup.tif.babyk	a499f810c2e52fe9f8adcd5817b2d985.exe
File opened for modification	C:\Users\Admin\Pictures\CompareUnregister.png.babyk	a499f810c2e52fe9f8adcd5817b2d985.exe
File renamed	C:\Users\Admin\Pictures\InvokeTest.crw => C:\Users\Admin\Pictures\InvokeTest.crw.babyk	a499f810c2e52fe9f8adcd5817b2d985.exe
File opened for modification	C:\Users\Admin\Pictures\ResumeUnregister.tiff	a499f810c2e52fe9f8adcd5817b2d985.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:

a499f810c2e52fe9f8adcd5817b2d985.exe

description	ioc	process
File opened (read-only)	\??\J:	a499f810c2e52fe9f8adcd5817b2d985.exe
File opened (read-only)	\??\N:	a499f810c2e52fe9f8adcd5817b2d985.exe
File opened (read-only)	\??\T:	a499f810c2e52fe9f8adcd5817b2d985.exe
File opened (read-only)	\??\P:	a499f810c2e52fe9f8adcd5817b2d985.exe
File opened (read-only)	\??\S:	a499f810c2e52fe9f8adcd5817b2d985.exe
File opened (read-only)	\??\F:	a499f810c2e52fe9f8adcd5817b2d985.exe
File opened (read-only)	\??\H:	a499f810c2e52fe9f8adcd5817b2d985.exe
File opened (read-only)	\??\E:	a499f810c2e52fe9f8adcd5817b2d985.exe
File opened (read-only)	\??\R:	a499f810c2e52fe9f8adcd5817b2d985.exe
File opened (read-only)	\??\A:	a499f810c2e52fe9f8adcd5817b2d985.exe
File opened (read-only)	\??\X:	a499f810c2e52fe9f8adcd5817b2d985.exe
File opened (read-only)	\??\V:	a499f810c2e52fe9f8adcd5817b2d985.exe
File opened (read-only)	\??\B:	a499f810c2e52fe9f8adcd5817b2d985.exe
File opened (read-only)	\??\M:	a499f810c2e52fe9f8adcd5817b2d985.exe
File opened (read-only)	\??\U:	a499f810c2e52fe9f8adcd5817b2d985.exe
File opened (read-only)	\??\I:	a499f810c2e52fe9f8adcd5817b2d985.exe
File opened (read-only)	\??\O:	a499f810c2e52fe9f8adcd5817b2d985.exe
File opened (read-only)	\??\G:	a499f810c2e52fe9f8adcd5817b2d985.exe
File opened (read-only)	\??\Z:	a499f810c2e52fe9f8adcd5817b2d985.exe
File opened (read-only)	\??\Q:	a499f810c2e52fe9f8adcd5817b2d985.exe
File opened (read-only)	\??\W:	a499f810c2e52fe9f8adcd5817b2d985.exe
File opened (read-only)	\??\Y:	a499f810c2e52fe9f8adcd5817b2d985.exe
File opened (read-only)	\??\K:	a499f810c2e52fe9f8adcd5817b2d985.exe
File opened (read-only)	\??\L:	a499f810c2e52fe9f8adcd5817b2d985.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

1652 vssadmin.exe
1048 vssadmin.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

a499f810c2e52fe9f8adcd5817b2d985.exe

pid process

1168 a499f810c2e52fe9f8adcd5817b2d985.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 1504 vssvc.exe
Token: SeRestorePrivilege 1504 vssvc.exe
Token: SeAuditPrivilege 1504 vssvc.exe

pid	process
1652	vssadmin.exe
1048	vssadmin.exe

pid	process
1168	a499f810c2e52fe9f8adcd5817b2d985.exe

description	pid	process
Token: SeBackupPrivilege	1504	vssvc.exe
Token: SeRestorePrivilege	1504	vssvc.exe
Token: SeAuditPrivilege	1504	vssvc.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

a499f810c2e52fe9f8adcd5817b2d985.execmd.execmd.exe

description	pid	process	target process
PID 1168 wrote to memory of 1196	1168	a499f810c2e52fe9f8adcd5817b2d985.exe	cmd.exe
PID 1168 wrote to memory of 1196	1168	a499f810c2e52fe9f8adcd5817b2d985.exe	cmd.exe
PID 1168 wrote to memory of 1196	1168	a499f810c2e52fe9f8adcd5817b2d985.exe	cmd.exe
PID 1168 wrote to memory of 1196	1168	a499f810c2e52fe9f8adcd5817b2d985.exe	cmd.exe
PID 1196 wrote to memory of 1652	1196	cmd.exe	vssadmin.exe
PID 1196 wrote to memory of 1652	1196	cmd.exe	vssadmin.exe
PID 1196 wrote to memory of 1652	1196	cmd.exe	vssadmin.exe
PID 1168 wrote to memory of 1780	1168	a499f810c2e52fe9f8adcd5817b2d985.exe	cmd.exe
PID 1168 wrote to memory of 1780	1168	a499f810c2e52fe9f8adcd5817b2d985.exe	cmd.exe
PID 1168 wrote to memory of 1780	1168	a499f810c2e52fe9f8adcd5817b2d985.exe	cmd.exe
PID 1168 wrote to memory of 1780	1168	a499f810c2e52fe9f8adcd5817b2d985.exe	cmd.exe
PID 1780 wrote to memory of 1048	1780	cmd.exe	vssadmin.exe
PID 1780 wrote to memory of 1048	1780	cmd.exe	vssadmin.exe
PID 1780 wrote to memory of 1048	1780	cmd.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe
"C:\Users\Admin\AppData\Local\Temp\a499f810c2e52fe9f8adcd5817b2d985.exe"
1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1168
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1196
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:1652
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1780
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:1048

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1504

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/1048-59-0x0000000000000000-mapping.dmp

Download
memory/1168-55-0x00000000760C1000-0x00000000760C3000-memory.dmp

Filesize
8KB

Download
memory/1196-56-0x0000000000000000-mapping.dmp

Download
memory/1652-57-0x0000000000000000-mapping.dmp

Download
memory/1780-58-0x0000000000000000-mapping.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads