Analysis
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max time kernel
146s -
max time network
132s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
06-03-2022 00:32
Static task
static1
Behavioral task
behavioral1
Sample
1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe
Resource
win7-20220223-en
Behavioral task
behavioral2
Sample
1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe
Resource
win10v2004-en-20220112
General
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Target
1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe
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Size
31KB
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MD5
e25e078255b56b47897ac96a7842de92
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SHA1
21febfb36da69c8a611a9eaee5cc826cfd5684d7
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SHA256
1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02
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SHA512
6ed5f9144996ad70ab9770ede191420ef12d69dd7833e0ec9064be0ec1959407c5971680e0a4bfc57a709853ea2d78c586a74f56f5d79874a5ab8f8adb45beb1
Malware Config
Extracted
\??\M:\Boot\bg-BG\How To Restore Your Files.txt
https://i.imgur.com/JZh2aDz.png
https://i.imgur.com/iKJ0m63.png
https://i.imgur.com/11DdeaB.png
https://i.imgur.com/9azjsKv.png
https://i.imgur.com/z6ry8kZ.png
https://i.imgur.com/tcryLE4.png
https://i.imgur.com/jruCjYx.png
https://i.imgur.com/vJJQxM1.png
http://babukq4e2p4wu4iq.onion/login.php?id=QQDgjfAG8pLYTBufjrVjnBg3iPAnSK
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 12 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exedescription ioc Process File renamed C:\Users\Admin\Pictures\UnblockSearch.png => C:\Users\Admin\Pictures\UnblockSearch.png.__NIST_K571__ 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File renamed C:\Users\Admin\Pictures\ConvertInstall.png => C:\Users\Admin\Pictures\ConvertInstall.png.__NIST_K571__ 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File renamed C:\Users\Admin\Pictures\DenyHide.tif => C:\Users\Admin\Pictures\DenyHide.tif.__NIST_K571__ 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File opened for modification C:\Users\Admin\Pictures\DismountStart.tiff 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File renamed C:\Users\Admin\Pictures\DismountStart.tiff => C:\Users\Admin\Pictures\DismountStart.tiff.__NIST_K571__ 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File renamed C:\Users\Admin\Pictures\EnterAssert.png => C:\Users\Admin\Pictures\EnterAssert.png.__NIST_K571__ 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File renamed C:\Users\Admin\Pictures\LockUnprotect.crw => C:\Users\Admin\Pictures\LockUnprotect.crw.__NIST_K571__ 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File renamed C:\Users\Admin\Pictures\DisableUnpublish.png => C:\Users\Admin\Pictures\DisableUnpublish.png.__NIST_K571__ 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File renamed C:\Users\Admin\Pictures\JoinInvoke.tif => C:\Users\Admin\Pictures\JoinInvoke.tif.__NIST_K571__ 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File renamed C:\Users\Admin\Pictures\ReadFormat.raw => C:\Users\Admin\Pictures\ReadFormat.raw.__NIST_K571__ 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File renamed C:\Users\Admin\Pictures\SetSuspend.raw => C:\Users\Admin\Pictures\SetSuspend.raw.__NIST_K571__ 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File renamed C:\Users\Admin\Pictures\WriteRegister.tif => C:\Users\Admin\Pictures\WriteRegister.tif.__NIST_K571__ 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe -
Drops startup file 1 IoCs
Processes:
1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exedescription ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\How To Restore Your Files.txt 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe -
Enumerates connected drives 3 TTPs 24 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exedescription ioc Process File opened (read-only) \??\U: 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File opened (read-only) \??\H: 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File opened (read-only) \??\L: 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File opened (read-only) \??\B: 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File opened (read-only) \??\M: 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File opened (read-only) \??\W: 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File opened (read-only) \??\I: 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File opened (read-only) \??\O: 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File opened (read-only) \??\A: 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File opened (read-only) \??\F: 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File opened (read-only) \??\Z: 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File opened (read-only) \??\X: 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File opened (read-only) \??\Q: 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File opened (read-only) \??\K: 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File opened (read-only) \??\N: 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File opened (read-only) \??\S: 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File opened (read-only) \??\R: 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File opened (read-only) \??\T: 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File opened (read-only) \??\Y: 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File opened (read-only) \??\P: 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File opened (read-only) \??\G: 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File opened (read-only) \??\J: 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File opened (read-only) \??\V: 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe File opened (read-only) \??\E: 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.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 2176 vssadmin.exe 4808 vssadmin.exe -
Modifies registry class 1 IoCs
Processes:
StartMenuExperienceHost.exedescription ioc Process Key created \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000_Classes\Local Settings\MuiCache StartMenuExperienceHost.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exepid Process 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
vssvc.exedescription pid Process Token: SeBackupPrivilege 2612 vssvc.exe Token: SeRestorePrivilege 2612 vssvc.exe Token: SeAuditPrivilege 2612 vssvc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
StartMenuExperienceHost.exepid Process 1496 StartMenuExperienceHost.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.execmd.execmd.exedescription pid Process procid_target PID 3096 wrote to memory of 3684 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 59 PID 3096 wrote to memory of 3684 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 59 PID 3684 wrote to memory of 2176 3684 cmd.exe 61 PID 3684 wrote to memory of 2176 3684 cmd.exe 61 PID 3096 wrote to memory of 4764 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 81 PID 3096 wrote to memory of 4764 3096 1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe 81 PID 4764 wrote to memory of 4808 4764 cmd.exe 83 PID 4764 wrote to memory of 4808 4764 cmd.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe"C:\Users\Admin\AppData\Local\Temp\1b9412ca5e9deb29aeaa37be05ae8d0a8a636c12fdff8c17032aa017f6075c02.exe"1⤵
- Modifies extensions of user files
- Checks computer location settings
- Drops startup file
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3096 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet2⤵
- Suspicious use of WriteProcessMemory
PID:3684 -
C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:2176
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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:4764 -
C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:4808
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2612
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C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:1496
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k wusvcs -p1⤵PID:3476