Analysis
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max time kernel
254s -
max time network
291s -
platform
windows10_x64 -
resource
win10v20210410 -
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 18 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exedescription ioc process File renamed C:\Users\Admin\Pictures\UpdateGrant.tiff => C:\Users\Admin\Pictures\UpdateGrant.tiff.babyk 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File renamed C:\Users\Admin\Pictures\WatchPublish.crw => C:\Users\Admin\Pictures\WatchPublish.crw.babyk 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened for modification C:\Users\Admin\Pictures\WatchPublish.crw.babyk 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened for modification C:\Users\Admin\Pictures\CloseUnprotect.tiff.babyk 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened for modification C:\Users\Admin\Pictures\ClearRead.raw.babyk 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File renamed C:\Users\Admin\Pictures\HideTest.png => C:\Users\Admin\Pictures\HideTest.png.babyk 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File renamed C:\Users\Admin\Pictures\ResolveDisable.raw => C:\Users\Admin\Pictures\ResolveDisable.raw.babyk 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened for modification C:\Users\Admin\Pictures\UpdateGrant.tiff 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened for modification C:\Users\Admin\Pictures\HideTest.png.babyk 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File renamed C:\Users\Admin\Pictures\InvokeSubmit.crw => C:\Users\Admin\Pictures\InvokeSubmit.crw.babyk 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened for modification C:\Users\Admin\Pictures\InvokeSubmit.crw.babyk 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File renamed C:\Users\Admin\Pictures\PublishEdit.raw => C:\Users\Admin\Pictures\PublishEdit.raw.babyk 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened for modification C:\Users\Admin\Pictures\PublishEdit.raw.babyk 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File renamed C:\Users\Admin\Pictures\ClearRead.raw => C:\Users\Admin\Pictures\ClearRead.raw.babyk 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File renamed C:\Users\Admin\Pictures\CloseUnprotect.tiff => C:\Users\Admin\Pictures\CloseUnprotect.tiff.babyk 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened for modification C:\Users\Admin\Pictures\ResolveDisable.raw.babyk 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened for modification C:\Users\Admin\Pictures\UpdateGrant.tiff.babyk 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened for modification C:\Users\Admin\Pictures\CloseUnprotect.tiff 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) \??\O: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\N: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\M: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\T: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\H: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\L: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\K: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\Z: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\Q: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\Y: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\U: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\A: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\S: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\F: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\V: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\J: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\X: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\W: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\E: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\R: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\I: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\P: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\G: 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe File opened (read-only) \??\B: 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 4072 vssadmin.exe 3192 vssadmin.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exepid process 4444 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe 4444 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
vssvc.exedescription pid process Token: SeBackupPrivilege 3156 vssvc.exe Token: SeRestorePrivilege 3156 vssvc.exe Token: SeAuditPrivilege 3156 vssvc.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.execmd.execmd.exedescription pid process target process PID 4444 wrote to memory of 4932 4444 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe cmd.exe PID 4444 wrote to memory of 4932 4444 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe cmd.exe PID 4932 wrote to memory of 3192 4932 cmd.exe vssadmin.exe PID 4932 wrote to memory of 3192 4932 cmd.exe vssadmin.exe PID 4444 wrote to memory of 4036 4444 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe cmd.exe PID 4444 wrote to memory of 4036 4444 3d554fe3ed824df5bb625bcff4ddde834866164088358ddabc4e5aec8a6562b0.exe cmd.exe PID 4036 wrote to memory of 4072 4036 cmd.exe vssadmin.exe PID 4036 wrote to memory of 4072 4036 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:4444 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet2⤵
- Suspicious use of WriteProcessMemory
PID:4932 -
C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:3192
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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:4036 -
C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:4072
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3156
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\How To Restore Your Files.txt1⤵PID:400
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\How To Restore Your Files.txt1⤵PID:1384
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
1cb251ec0d568de6a929b520c4aed8d1
SHA1372ea08cab33e71c02c651dbc83a474d32c676ea
SHA256982d9e3eb996f559e633f4d194def3761d909f5a3b647d1a851fead67c32c9d1
SHA512eaf2c12742cb8c161bcbd84b032b9bb98999a23282542672ca01cc6edd268f7dce9987ad6b2bc79305634f89d90b90102bcd59a57e7135b8e3ceb93c0597117b