Analysis
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max time kernel
78s -
max time network
135s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
26-07-2021 12:57
Static task
static1
Behavioral task
behavioral1
Sample
30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe
Resource
win7v20210410
Behavioral task
behavioral2
Sample
30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe
Resource
win10v20210408
General
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Target
30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe
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Size
31KB
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MD5
dd7f88a68a76acc0be9eb0515d54a82a
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SHA1
ca205a28b8dbd74c60fdeaf522804d5a2a45dd0b
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SHA256
30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8
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SHA512
8e99c1d3291dacaf13c7aff75549d50484b593022bdb82cb3ecffd58f0bbf1dd1ae4deeb09f072d4c3f1b8918a0bc785a397143863466975dad950e115db5af6
Malware Config
Extracted
\??\M:\How To Restore Your Files.txt
https://i.imgur.com/RzYzVnY.png
https://i.imgur.com/kJzIOqn.png
https://i.imgur.com/bFdNbyO.png
http://babukq4e2p4wu4iq.onion/login.php?id=0KflFXBAmSHtJrtKWtOPzxZmhJATon
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 6 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exedescription ioc Process File renamed C:\Users\Admin\Pictures\ConvertFromStop.raw => C:\Users\Admin\Pictures\ConvertFromStop.raw.__NIST_K571__ 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe File renamed C:\Users\Admin\Pictures\DenyRevoke.crw => C:\Users\Admin\Pictures\DenyRevoke.crw.__NIST_K571__ 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe File renamed C:\Users\Admin\Pictures\ExportWrite.crw => C:\Users\Admin\Pictures\ExportWrite.crw.__NIST_K571__ 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe File renamed C:\Users\Admin\Pictures\RenameUse.crw => C:\Users\Admin\Pictures\RenameUse.crw.__NIST_K571__ 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe File renamed C:\Users\Admin\Pictures\ShowStep.tif => C:\Users\Admin\Pictures\ShowStep.tif.__NIST_K571__ 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe File renamed C:\Users\Admin\Pictures\TestRestore.tif => C:\Users\Admin\Pictures\TestRestore.tif.__NIST_K571__ 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe -
Drops startup file 1 IoCs
Processes:
30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exedescription ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\How To Restore Your Files.txt 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe -
Enumerates connected drives 3 TTPs 24 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exedescription ioc Process File opened (read-only) \??\E: 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe File opened (read-only) \??\I: 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe File opened (read-only) \??\B: 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe File opened (read-only) \??\N: 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe File opened (read-only) \??\M: 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe File opened (read-only) \??\X: 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe File opened (read-only) \??\Q: 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe File opened (read-only) \??\T: 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe File opened (read-only) \??\O: 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe File opened (read-only) \??\P: 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe File opened (read-only) \??\K: 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe File opened (read-only) \??\L: 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe File opened (read-only) \??\V: 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe File opened (read-only) \??\R: 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe File opened (read-only) \??\Y: 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe File opened (read-only) \??\U: 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe File opened (read-only) \??\S: 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe File opened (read-only) \??\F: 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe File opened (read-only) \??\Z: 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe File opened (read-only) \??\W: 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe File opened (read-only) \??\A: 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe File opened (read-only) \??\G: 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe File opened (read-only) \??\H: 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe File opened (read-only) \??\J: 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.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 1928 vssadmin.exe 3952 vssadmin.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exepid Process 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
vssvc.exedescription pid Process Token: SeBackupPrivilege 572 vssvc.exe Token: SeRestorePrivilege 572 vssvc.exe Token: SeAuditPrivilege 572 vssvc.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
ShellExperienceHost.exepid Process 3188 ShellExperienceHost.exe 3188 ShellExperienceHost.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.execmd.execmd.exedescription pid Process procid_target PID 644 wrote to memory of 3176 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 75 PID 644 wrote to memory of 3176 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 75 PID 3176 wrote to memory of 1928 3176 cmd.exe 77 PID 3176 wrote to memory of 1928 3176 cmd.exe 77 PID 644 wrote to memory of 4024 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 85 PID 644 wrote to memory of 4024 644 30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe 85 PID 4024 wrote to memory of 3952 4024 cmd.exe 87 PID 4024 wrote to memory of 3952 4024 cmd.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe"C:\Users\Admin\AppData\Local\Temp\30fcff7add11ea6685a233c8ce1fc30abe67044630524a6eb363573a4a9f88b8.sample.exe"1⤵
- Modifies extensions of user files
- Drops startup file
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:644 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet2⤵
- Suspicious use of WriteProcessMemory
PID:3176 -
C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:1928
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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:4024 -
C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:3952
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:572
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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:3188