Analysis
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max time kernel
142s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
30-01-2024 12:33
Static task
static1
Behavioral task
behavioral1
Sample
2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe
Resource
win10v2004-20231215-en
General
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Target
2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe
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Size
79KB
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MD5
dde253fbf823011af1961649e16e218c
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SHA1
a725eac8b1e7487078dd79bac03b635fb658a511
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SHA256
ff78e9706891818a3db5ef3f46f107250f59bff43276d72e77eb4ec9d26e0e66
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SHA512
27f50866d9bd67b5859d0d7589a996b0ef0d131dea54b62d4e34c71200751739cba64257fe4cdc15ca86f52e3e017172b95b3290a1b6b76cb38c7ee46e5f9b77
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SSDEEP
1536:UmkWBeG/vEbmsrQLOJgY8ZZP8LHD4XWaNH71dLdG1iiFM2iG2nsf:HBeQsmsrQLOJgY8Zp8LHD4XWaNH71dLc
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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Renames multiple (174) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Control Panel\International\Geo\Nation 2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exedescription ioc process File opened (read-only) \??\V: 2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe File opened (read-only) \??\T: 2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe File opened (read-only) \??\I: 2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe File opened (read-only) \??\H: 2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe File opened (read-only) \??\X: 2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe File opened (read-only) \??\G: 2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe File opened (read-only) \??\Z: 2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe File opened (read-only) \??\M: 2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe File opened (read-only) \??\Q: 2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe File opened (read-only) \??\E: 2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe File opened (read-only) \??\Y: 2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe File opened (read-only) \??\S: 2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe File opened (read-only) \??\K: 2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe File opened (read-only) \??\L: 2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe File opened (read-only) \??\B: 2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe File opened (read-only) \??\N: 2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe File opened (read-only) \??\W: 2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe File opened (read-only) \??\O: 2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe File opened (read-only) \??\A: 2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe File opened (read-only) \??\J: 2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe File opened (read-only) \??\R: 2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe File opened (read-only) \??\U: 2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe File opened (read-only) \??\P: 2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 4732 vssadmin.exe 3804 vssadmin.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exepid process 2628 2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe 2628 2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
vssvc.exedescription pid process Token: SeBackupPrivilege 4588 vssvc.exe Token: SeRestorePrivilege 4588 vssvc.exe Token: SeAuditPrivilege 4588 vssvc.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.execmd.execmd.exedescription pid process target process PID 2628 wrote to memory of 2580 2628 2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe cmd.exe PID 2628 wrote to memory of 2580 2628 2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe cmd.exe PID 2580 wrote to memory of 4732 2580 cmd.exe vssadmin.exe PID 2580 wrote to memory of 4732 2580 cmd.exe vssadmin.exe PID 2628 wrote to memory of 1528 2628 2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe cmd.exe PID 2628 wrote to memory of 1528 2628 2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe cmd.exe PID 1528 wrote to memory of 3804 1528 cmd.exe vssadmin.exe PID 1528 wrote to memory of 3804 1528 cmd.exe vssadmin.exe -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-30_dde253fbf823011af1961649e16e218c_babuk_destroyer.exe"1⤵
- Checks computer location settings
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2628 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet2⤵
- Suspicious use of WriteProcessMemory
PID:2580 -
C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:4732 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet2⤵
- Suspicious use of WriteProcessMemory
PID:1528 -
C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:3804
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4588
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
143B
MD54412c9256c586536fe50e4e597e3e17c
SHA163fb5a15306c6322feb227aa8a5fbdce5e38ef1c
SHA2562c8b4cf863cf122558b64a47c47179312012ffcc84bc9176bebe031fb47b4648
SHA512298283dd3ec47888b80ccaeecd33d9c386a2b2af1bd01ea74142a970c6bfd3e9fdc1258f2ee4bdfbb68914103482a3e07f5b4e8f9d50abeda6ba3f65c35eda63