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10-03-2021 22:42
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210310-7j33lwf7tx 1022-01-2021 00:08
210122-dcvdsabdme 10Analysis
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max time kernel
145s -
max time network
145s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
10-03-2021 22:38
Static task
static1
Behavioral task
behavioral1
Sample
BABUK.exe
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
BABUK.exe
Resource
win10v20201028
windows10_x64
0 signatures
0 seconds
General
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Target
BABUK.exe
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Size
38KB
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MD5
be76ed428523b9aefe706aeaa72bb6b2
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SHA1
b040f2bdee3999aad415396f9f79e43b2aa9452b
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SHA256
afcf265a1dcd9eab5aab270d48aa561e4ddeb71c05e32c857d3b809bb64c0430
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SHA512
d08870197e1234a8e7115fc8bc0a868841054a0f6d3153a9ad77dad1bb077da3c2af3bdeebf53c6304943a3169ef5ae4fde16ce0e45a421e9afc2b4041a07c5b
Score
10/10
Malware Config
Extracted
Path
C:\Boot\bg-BG\How To Restore Your Files.txt
Ransom Note
----------- [ Hello, Schauer Agrotronic ] ------------->
****BY BABUK LOCKER****
What happend?
----------------------------------------------
Your computers and servers are encrypted, backups are deleted from your network and copied. We use strong encryption algorithms, so you cannot decrypt your data.
But you can restore everything by purchasing a special program from us - a universal decoder. This program will restore your entire network.
Follow our instructions below and you will recover all your data.
If you continue to ignore this for a long time, we will start reporting the hack to mainstream media and posting your data to the dark web.
What guarantees?
----------------------------------------------
We value our reputation. If we do not do our work and liabilities, nobody will pay us. This is not in our interests.
All our decryption software is perfectly tested and will decrypt your data. We will also provide support in case of problems.
We guarantee to decrypt one file for free. Go to the site and contact us.
What information compromised?
----------------------------------------------
We copied more than 50 gb from your internal network, here are some proofs, for additional confirmations, please chat with us
In cases of ignoring us, the information will be released to the public.
How to contact us?
----------------------------------------------
Using TOR Browser ( https://www.torproject.org/download/ ):
http://babukq4e2p4wu4iq.onion/login.php?id=p9gFgBg5TsdcO3mV9mf2RJlJoI0iy1
!!! DANGER !!!
DO NOT MODIFY or try to RECOVER any files yourself. We WILL NOT be able to RESTORE them.
!!! DANGER !!
URLs
http://babukq4e2p4wu4iq.onion/login.php?id=p9gFgBg5TsdcO3mV9mf2RJlJoI0iy1
Signatures
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Babuk Locker
RaaS first seen in 2021 initially called Vasa Locker.
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Modifies extensions of user files 13 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
BABUK.exedescription ioc Process File renamed C:\Users\Admin\Pictures\BackupMeasure.crw => C:\Users\Admin\Pictures\BackupMeasure.crw.babyk BABUK.exe File opened for modification C:\Users\Admin\Pictures\CompressMount.tiff BABUK.exe File renamed C:\Users\Admin\Pictures\ConvertExit.raw => C:\Users\Admin\Pictures\ConvertExit.raw.babyk BABUK.exe File renamed C:\Users\Admin\Pictures\DismountResume.png => C:\Users\Admin\Pictures\DismountResume.png.babyk BABUK.exe File opened for modification C:\Users\Admin\Pictures\RevokePush.tiff BABUK.exe File renamed C:\Users\Admin\Pictures\UpdateMerge.raw => C:\Users\Admin\Pictures\UpdateMerge.raw.babyk BABUK.exe File renamed C:\Users\Admin\Pictures\CompressMount.tiff => C:\Users\Admin\Pictures\CompressMount.tiff.babyk BABUK.exe File renamed C:\Users\Admin\Pictures\RenamePing.png => C:\Users\Admin\Pictures\RenamePing.png.babyk BABUK.exe File renamed C:\Users\Admin\Pictures\RevokePush.tiff => C:\Users\Admin\Pictures\RevokePush.tiff.babyk BABUK.exe File opened for modification C:\Users\Admin\Pictures\SyncEdit.tiff BABUK.exe File renamed C:\Users\Admin\Pictures\StepCompress.tif => C:\Users\Admin\Pictures\StepCompress.tif.babyk BABUK.exe File renamed C:\Users\Admin\Pictures\SyncEdit.tiff => C:\Users\Admin\Pictures\SyncEdit.tiff.babyk BABUK.exe File renamed C:\Users\Admin\Pictures\UndoSplit.tif => C:\Users\Admin\Pictures\UndoSplit.tif.babyk BABUK.exe -
Drops startup file 1 IoCs
Processes:
BABUK.exedescription ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\How To Restore Your Files.txt BABUK.exe -
Enumerates connected drives 3 TTPs 24 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
BABUK.exedescription ioc Process File opened (read-only) \??\T: BABUK.exe File opened (read-only) \??\Y: BABUK.exe File opened (read-only) \??\U: BABUK.exe File opened (read-only) \??\S: BABUK.exe File opened (read-only) \??\F: BABUK.exe File opened (read-only) \??\Q: BABUK.exe File opened (read-only) \??\R: BABUK.exe File opened (read-only) \??\H: BABUK.exe File opened (read-only) \??\L: BABUK.exe File opened (read-only) \??\X: BABUK.exe File opened (read-only) \??\O: BABUK.exe File opened (read-only) \??\G: BABUK.exe File opened (read-only) \??\P: BABUK.exe File opened (read-only) \??\J: BABUK.exe File opened (read-only) \??\K: BABUK.exe File opened (read-only) \??\N: BABUK.exe File opened (read-only) \??\E: BABUK.exe File opened (read-only) \??\I: BABUK.exe File opened (read-only) \??\Z: BABUK.exe File opened (read-only) \??\V: BABUK.exe File opened (read-only) \??\B: BABUK.exe File opened (read-only) \??\M: BABUK.exe File opened (read-only) \??\W: BABUK.exe File opened (read-only) \??\A: BABUK.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
Processes:
vssadmin.exevssadmin.exepid Process 2732 vssadmin.exe 2116 vssadmin.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
BABUK.exepid Process 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe 1316 BABUK.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
vssvc.exedescription pid Process Token: SeBackupPrivilege 2560 vssvc.exe Token: SeRestorePrivilege 2560 vssvc.exe Token: SeAuditPrivilege 2560 vssvc.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
ShellExperienceHost.exepid Process 3960 ShellExperienceHost.exe 3960 ShellExperienceHost.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
BABUK.execmd.execmd.exedescription pid Process procid_target PID 1316 wrote to memory of 3400 1316 BABUK.exe 73 PID 1316 wrote to memory of 3400 1316 BABUK.exe 73 PID 3400 wrote to memory of 2732 3400 cmd.exe 75 PID 3400 wrote to memory of 2732 3400 cmd.exe 75 PID 1316 wrote to memory of 2416 1316 BABUK.exe 86 PID 1316 wrote to memory of 2416 1316 BABUK.exe 86 PID 2416 wrote to memory of 2116 2416 cmd.exe 88 PID 2416 wrote to memory of 2116 2416 cmd.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\BABUK.exe"C:\Users\Admin\AppData\Local\Temp\BABUK.exe"1⤵
- Modifies extensions of user files
- Drops startup file
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1316 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet2⤵
- Suspicious use of WriteProcessMemory
PID:3400 -
C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:2732
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet2⤵
- Suspicious use of WriteProcessMemory
PID:2416 -
C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:2116
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2560
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C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe"C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe" -ServerName:App.AppXtk181tbxbce2qsex02s8tw7hfxa9xb3t.mca1⤵
- Suspicious use of SetWindowsHookEx
PID:3960