Analysis
-
max time kernel
45s -
max time network
48s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
04-07-2022 06:36
Static task
static1
Behavioral task
behavioral1
Sample
08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe
Resource
win10v2004-20220414-en
General
-
Target
08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe
-
Size
873KB
-
MD5
827ce17c53de507c34b000e73c103de7
-
SHA1
c15011e565af3b2845eb9707132d3187fb93a54e
-
SHA256
08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6
-
SHA512
e2f54c654a86718e456c18151653626fcb3a361c7717281a6eff47fb68ac0df673926edc4f459b5b7e2e4aaab9e0f644250d48475838b74c488e34e2bbeed766
Malware Config
Extracted
C:\How To Restore Your Files.txt
Signatures
-
Babuk Locker
RaaS first seen in 2021 initially called Vasa Locker.
-
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
-
Modifies extensions of user files 12 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File opened for modification C:\Users\Admin\Pictures\EnterCompress.tiff.babyk 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File opened for modification C:\Users\Admin\Pictures\EnterCompress.tiff 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File renamed C:\Users\Admin\Pictures\DebugStop.tiff => C:\Users\Admin\Pictures\DebugStop.tiff.babyk 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File opened for modification C:\Users\Admin\Pictures\ExitRename.raw.babyk 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File renamed C:\Users\Admin\Pictures\FindDismount.tif => C:\Users\Admin\Pictures\FindDismount.tif.babyk 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File opened for modification C:\Users\Admin\Pictures\FindDismount.tif.babyk 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File opened for modification C:\Users\Admin\Pictures\ResetLock.raw.babyk 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File opened for modification C:\Users\Admin\Pictures\DebugStop.tiff 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File opened for modification C:\Users\Admin\Pictures\DebugStop.tiff.babyk 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File renamed C:\Users\Admin\Pictures\ExitRename.raw => C:\Users\Admin\Pictures\ExitRename.raw.babyk 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File renamed C:\Users\Admin\Pictures\EnterCompress.tiff => C:\Users\Admin\Pictures\EnterCompress.tiff.babyk 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File renamed C:\Users\Admin\Pictures\ResetLock.raw => C:\Users\Admin\Pictures\ResetLock.raw.babyk 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe -
Enumerates connected drives 3 TTPs 24 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\P: 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File opened (read-only) \??\S: 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File opened (read-only) \??\J: 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File opened (read-only) \??\Z: 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File opened (read-only) \??\X: 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File opened (read-only) \??\M: 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File opened (read-only) \??\T: 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File opened (read-only) \??\Y: 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File opened (read-only) \??\G: 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File opened (read-only) \??\N: 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File opened (read-only) \??\I: 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File opened (read-only) \??\F: 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File opened (read-only) \??\O: 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File opened (read-only) \??\H: 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File opened (read-only) \??\K: 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File opened (read-only) \??\V: 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File opened (read-only) \??\B: 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File opened (read-only) \??\Q: 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File opened (read-only) \??\U: 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File opened (read-only) \??\R: 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File opened (read-only) \??\A: 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File opened (read-only) \??\L: 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File opened (read-only) \??\W: 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe File opened (read-only) \??\E: 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 16 IoCs
pid Process 1236 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe 1236 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe 1236 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe 1236 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe 1236 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe 1236 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe 1236 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe 1236 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe 1236 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe 1236 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe 1236 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe 1236 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe 1236 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe 1236 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe 1236 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe 1236 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 1152 vssadmin.exe 832 vssadmin.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1236 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeBackupPrivilege 1196 vssvc.exe Token: SeRestorePrivilege 1196 vssvc.exe Token: SeAuditPrivilege 1196 vssvc.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 1236 wrote to memory of 580 1236 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe 27 PID 1236 wrote to memory of 580 1236 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe 27 PID 1236 wrote to memory of 580 1236 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe 27 PID 1236 wrote to memory of 580 1236 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe 27 PID 580 wrote to memory of 1152 580 cmd.exe 29 PID 580 wrote to memory of 1152 580 cmd.exe 29 PID 580 wrote to memory of 1152 580 cmd.exe 29 PID 1236 wrote to memory of 760 1236 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe 33 PID 1236 wrote to memory of 760 1236 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe 33 PID 1236 wrote to memory of 760 1236 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe 33 PID 1236 wrote to memory of 760 1236 08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe 33 PID 760 wrote to memory of 832 760 cmd.exe 35 PID 760 wrote to memory of 832 760 cmd.exe 35 PID 760 wrote to memory of 832 760 cmd.exe 35
Processes
-
C:\Users\Admin\AppData\Local\Temp\08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe"C:\Users\Admin\AppData\Local\Temp\08565f345878369fdbbcf4a064d9f4762f4549f67d1e2aa3907a112a5e5322b6.exe"1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1236 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet2⤵
- Suspicious use of WriteProcessMemory
PID:580 -
C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:1152
-
-
-
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet2⤵
- Suspicious use of WriteProcessMemory
PID:760 -
C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:832
-
-
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1196