Analysis
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max time kernel
186s -
max time network
38s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
07-07-2021 16:08
Static task
static1
Behavioral task
behavioral1
Sample
3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
Resource
win10v20210410
General
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Target
3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe
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Size
79KB
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MD5
012393fc32a1be21437634a2de7019f1
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SHA1
a5c223240be45c0e29a9c119b242ee0dc87968e9
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SHA256
3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0
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SHA512
58e8cb9e1420eddbd8b864021184ca892ead2f9e5e24877cacacac786cedfeb4cdfbcbdb73dc0c444949dfd50a4a1b2f9659f0cf2210099cfd99d36de8a1f801
Malware Config
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 8 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exedescription ioc process File renamed C:\Users\Admin\Pictures\SaveUnlock.raw => C:\Users\Admin\Pictures\SaveUnlock.raw.babyk 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened for modification C:\Users\Admin\Pictures\SaveUnlock.raw.babyk 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File renamed C:\Users\Admin\Pictures\ConvertFromBackup.png => C:\Users\Admin\Pictures\ConvertFromBackup.png.babyk 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened for modification C:\Users\Admin\Pictures\ConvertFromBackup.png.babyk 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File renamed C:\Users\Admin\Pictures\CopyInvoke.png => C:\Users\Admin\Pictures\CopyInvoke.png.babyk 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened for modification C:\Users\Admin\Pictures\CopyInvoke.png.babyk 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File renamed C:\Users\Admin\Pictures\DebugExport.tif => C:\Users\Admin\Pictures\DebugExport.tif.babyk 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened for modification C:\Users\Admin\Pictures\DebugExport.tif.babyk 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe -
Enumerates connected drives 3 TTPs 24 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exedescription ioc process File opened (read-only) \??\H: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\J: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\X: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\N: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\W: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\I: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\O: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\F: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\P: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\K: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\M: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\A: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\S: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\Z: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\V: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\R: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\T: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\Y: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\U: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\B: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\Q: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\E: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\G: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\L: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.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 1596 vssadmin.exe 1984 vssadmin.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exepid process 564 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
vssvc.exedescription pid process Token: SeBackupPrivilege 316 vssvc.exe Token: SeRestorePrivilege 316 vssvc.exe Token: SeAuditPrivilege 316 vssvc.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.execmd.execmd.exedescription pid process target process PID 564 wrote to memory of 108 564 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe cmd.exe PID 564 wrote to memory of 108 564 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe cmd.exe PID 564 wrote to memory of 108 564 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe cmd.exe PID 564 wrote to memory of 108 564 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe cmd.exe PID 108 wrote to memory of 1596 108 cmd.exe vssadmin.exe PID 108 wrote to memory of 1596 108 cmd.exe vssadmin.exe PID 108 wrote to memory of 1596 108 cmd.exe vssadmin.exe PID 564 wrote to memory of 1960 564 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe cmd.exe PID 564 wrote to memory of 1960 564 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe cmd.exe PID 564 wrote to memory of 1960 564 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe cmd.exe PID 564 wrote to memory of 1960 564 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe cmd.exe PID 1960 wrote to memory of 1984 1960 cmd.exe vssadmin.exe PID 1960 wrote to memory of 1984 1960 cmd.exe vssadmin.exe PID 1960 wrote to memory of 1984 1960 cmd.exe vssadmin.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe"C:\Users\Admin\AppData\Local\Temp\3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe"1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:564 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet2⤵
- Suspicious use of WriteProcessMemory
PID:108 -
C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:1596
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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:1960 -
C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:1984
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:316