Analysis
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max time kernel
42s -
max time network
45s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
09-10-2022 12:41
Static task
static1
Behavioral task
behavioral1
Sample
ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe
Resource
win10v2004-20220901-en
General
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Target
ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe
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Size
79KB
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MD5
fa758e45dae3e8a7506f6b7663ccb4b4
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SHA1
ecdcc9bc595e93dfedbe26352d7a954a69d4a8ea
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SHA256
ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2
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SHA512
01598cfbde622afbc52ba17d406b459f4cb4c8db6a15eaa3f906eba9ea3ba920e61632383e35117c7c4fb1757c3aab9a291507228570b5cfdcac94de684cbe3c
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SSDEEP
1536:4pykWBeG/vEbmsrQLOJgY8ZZP8LHD4XWaNH71dLdG1iiFM2iG2nsf:ZBeQsmsrQLOJgY8Zp8LHD4XWaNH71dLc
Malware Config
Extracted
C:\How To Restore Your Files.txt
https://t.me/bbkte4m
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 7 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File opened for modification C:\Users\Admin\Pictures\UnblockWrite.png.babyk ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe File renamed C:\Users\Admin\Pictures\BlockWatch.raw => C:\Users\Admin\Pictures\BlockWatch.raw.babyk ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe File opened for modification C:\Users\Admin\Pictures\BlockWatch.raw.babyk ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe File opened for modification C:\Users\Admin\Pictures\PublishCheckpoint.tiff ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe File renamed C:\Users\Admin\Pictures\PublishCheckpoint.tiff => C:\Users\Admin\Pictures\PublishCheckpoint.tiff.babyk ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe File opened for modification C:\Users\Admin\Pictures\PublishCheckpoint.tiff.babyk ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe File renamed C:\Users\Admin\Pictures\UnblockWrite.png => C:\Users\Admin\Pictures\UnblockWrite.png.babyk ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.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) \??\B: ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe File opened (read-only) \??\T: ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe File opened (read-only) \??\Y: ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe File opened (read-only) \??\U: ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe File opened (read-only) \??\H: ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe File opened (read-only) \??\I: ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe File opened (read-only) \??\P: ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe File opened (read-only) \??\G: ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe File opened (read-only) \??\J: ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe File opened (read-only) \??\Q: ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe File opened (read-only) \??\W: ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe File opened (read-only) \??\E: ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe File opened (read-only) \??\R: ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe File opened (read-only) \??\V: ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe File opened (read-only) \??\N: ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe File opened (read-only) \??\M: ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe File opened (read-only) \??\O: ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe File opened (read-only) \??\S: ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe File opened (read-only) \??\L: ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe File opened (read-only) \??\X: ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe File opened (read-only) \??\A: ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe File opened (read-only) \??\F: ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe File opened (read-only) \??\K: ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe File opened (read-only) \??\Z: ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.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 1780 vssadmin.exe 984 vssadmin.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1972 ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeBackupPrivilege 1348 vssvc.exe Token: SeRestorePrivilege 1348 vssvc.exe Token: SeAuditPrivilege 1348 vssvc.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 1972 wrote to memory of 1724 1972 ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe 28 PID 1972 wrote to memory of 1724 1972 ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe 28 PID 1972 wrote to memory of 1724 1972 ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe 28 PID 1972 wrote to memory of 1724 1972 ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe 28 PID 1724 wrote to memory of 1780 1724 cmd.exe 30 PID 1724 wrote to memory of 1780 1724 cmd.exe 30 PID 1724 wrote to memory of 1780 1724 cmd.exe 30 PID 1972 wrote to memory of 1252 1972 ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe 34 PID 1972 wrote to memory of 1252 1972 ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe 34 PID 1972 wrote to memory of 1252 1972 ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe 34 PID 1972 wrote to memory of 1252 1972 ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe 34 PID 1252 wrote to memory of 984 1252 cmd.exe 36 PID 1252 wrote to memory of 984 1252 cmd.exe 36 PID 1252 wrote to memory of 984 1252 cmd.exe 36
Processes
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C:\Users\Admin\AppData\Local\Temp\ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe"C:\Users\Admin\AppData\Local\Temp\ab8eee432fa636360b3c6724fe6851e9cf8eeae1ee9da6fc576bee1cd5d7fad2.exe"1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1972 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet2⤵
- Suspicious use of WriteProcessMemory
PID:1724 -
C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:1780
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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:1252 -
C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:984
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1348