Analysis
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max time kernel
42s -
max time network
46s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
05-07-2022 09:23
Static task
static1
Behavioral task
behavioral1
Sample
b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe
Resource
win10v2004-20220414-en
Behavioral task
behavioral3
Sample
cf3bdf0f8ea4c8ece5f5a76524ab4c81fea6c3a1715b5a86b3ad4d397fca76f3.exe
Resource
win7-20220414-en
Behavioral task
behavioral4
Sample
cf3bdf0f8ea4c8ece5f5a76524ab4c81fea6c3a1715b5a86b3ad4d397fca76f3.exe
Resource
win10v2004-20220414-en
General
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Target
b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe
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Size
811KB
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MD5
7d710e304c5d5d1febe8c0e1bf14615a
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SHA1
34d813aedb66d14ece1276f8ee61a568546c8dbe
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SHA256
b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9
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SHA512
6ece233063306b29c3abf1d4449a9cf172a77f44f2f2ceb48ea23161de57aa795c720d263ea9d6964c7ec5756024e21a6464cabd47c6a8ca9e49263b2b339bab
Malware Config
Extracted
C:\How To Restore Your Files.txt
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 9 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File opened for modification C:\Users\Admin\Pictures\AddSync.raw.babyk b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File renamed C:\Users\Admin\Pictures\LimitProtect.png => C:\Users\Admin\Pictures\LimitProtect.png.babyk b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File opened for modification C:\Users\Admin\Pictures\LimitProtect.png.babyk b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File opened for modification C:\Users\Admin\Pictures\ResolveJoin.raw.babyk b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File renamed C:\Users\Admin\Pictures\AddSync.raw => C:\Users\Admin\Pictures\AddSync.raw.babyk b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File opened for modification C:\Users\Admin\Pictures\UnprotectSuspend.tiff b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File renamed C:\Users\Admin\Pictures\ResolveJoin.raw => C:\Users\Admin\Pictures\ResolveJoin.raw.babyk b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File renamed C:\Users\Admin\Pictures\UnprotectSuspend.tiff => C:\Users\Admin\Pictures\UnprotectSuspend.tiff.babyk b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File opened for modification C:\Users\Admin\Pictures\UnprotectSuspend.tiff.babyk b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe -
Enumerates connected drives 3 TTPs 24 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\V: b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File opened (read-only) \??\N: b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File opened (read-only) \??\W: b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File opened (read-only) \??\Y: b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File opened (read-only) \??\O: b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File opened (read-only) \??\K: b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File opened (read-only) \??\F: b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File opened (read-only) \??\E: b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File opened (read-only) \??\P: b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File opened (read-only) \??\A: b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File opened (read-only) \??\S: b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File opened (read-only) \??\I: b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File opened (read-only) \??\G: b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File opened (read-only) \??\H: b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File opened (read-only) \??\J: b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File opened (read-only) \??\Q: b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File opened (read-only) \??\R: b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File opened (read-only) \??\T: b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File opened (read-only) \??\U: b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File opened (read-only) \??\B: b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File opened (read-only) \??\L: b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File opened (read-only) \??\Z: b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File opened (read-only) \??\X: b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe File opened (read-only) \??\M: b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 16 IoCs
pid Process 1048 b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe 1048 b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe 1048 b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe 1048 b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe 1048 b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe 1048 b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe 1048 b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe 1048 b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe 1048 b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe 1048 b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe 1048 b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe 1048 b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe 1048 b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe 1048 b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe 1048 b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe 1048 b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.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.
pid Process 1888 vssadmin.exe 524 vssadmin.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1048 b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeBackupPrivilege 108 vssvc.exe Token: SeRestorePrivilege 108 vssvc.exe Token: SeAuditPrivilege 108 vssvc.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 1048 wrote to memory of 1252 1048 b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe 28 PID 1048 wrote to memory of 1252 1048 b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe 28 PID 1048 wrote to memory of 1252 1048 b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe 28 PID 1048 wrote to memory of 1252 1048 b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe 28 PID 1252 wrote to memory of 1888 1252 cmd.exe 30 PID 1252 wrote to memory of 1888 1252 cmd.exe 30 PID 1252 wrote to memory of 1888 1252 cmd.exe 30 PID 1048 wrote to memory of 1588 1048 b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe 34 PID 1048 wrote to memory of 1588 1048 b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe 34 PID 1048 wrote to memory of 1588 1048 b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe 34 PID 1048 wrote to memory of 1588 1048 b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe 34 PID 1588 wrote to memory of 524 1588 cmd.exe 36 PID 1588 wrote to memory of 524 1588 cmd.exe 36 PID 1588 wrote to memory of 524 1588 cmd.exe 36
Processes
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C:\Users\Admin\AppData\Local\Temp\b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe"C:\Users\Admin\AppData\Local\Temp\b0a010e5a9b353a11fb664501de91fc47878d89bf97cb57bc03428c7a45981b9.exe"1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1048 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet2⤵
- Suspicious use of WriteProcessMemory
PID:1252 -
C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:1888
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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:1588 -
C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:524
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:108