Analysis
- max time kernel
149s - max time network
139s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
23/08/2026, 14:28
Static task
static1
Behavioral task
behavioral1
Sample
2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe
Resource
win11ltsc2024-20260709-en
General
- Target 2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe
- Size 79KB
- Sample260823-rs4ehsxekf
- SHA256 7237a914c8c2e1913e1a7c5a2907fe461b30ec71bfc37de7d3d2d663dd58fb35
- MD5 fc3601a757320537476d1b9d1eb1895e
- SHA1 a7bf761d053e1a06858d75f6b07918d644cbba47
- SHA512 9df9f960b6a5079fe45485ad40c770b578e046fd2ca9fcaf4b6a421f1a822ae1bc8e1681aa5b25b7354d8f53597e395819fd4772b921797934f70928d8ea3d6a
- SSDEEP 1536:q6UhZM4hubesrQLOJgY8ZZP8LHD4XWaNH71dLdG1iiFM2iG2zs4:0hZ5YesrQLOJgY8Zp8LHD4XWaNH71dLI
- TLSH T18683D8115945D2B6C5D132318167F1AAC13A197003B5B78B63C027AEFB10AE8F6BCF67
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Family: Babuk Locker
RaaS first seen in 2021 initially called Vasa Locker.
- Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
- Renames multiple (161) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
- Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\V: 2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe File opened (read-only) \??\B: 2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe File opened (read-only) \??\Q: 2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe File opened (read-only) \??\W: 2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe File opened (read-only) \??\T: 2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe File opened (read-only) \??\H: 2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe File opened (read-only) \??\L: 2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe File opened (read-only) \??\M: 2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe File opened (read-only) \??\R: 2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe File opened (read-only) \??\A: 2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe File opened (read-only) \??\D: 2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe File opened (read-only) \??\K: 2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe File opened (read-only) \??\N: 2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe File opened (read-only) \??\U: 2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe File opened (read-only) \??\I: 2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe File opened (read-only) \??\S: 2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe File opened (read-only) \??\G: 2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe File opened (read-only) \??\J: 2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe File opened (read-only) \??\Z: 2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe File opened (read-only) \??\X: 2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe File opened (read-only) \??\Y: 2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe File opened (read-only) \??\O: 2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe File opened (read-only) \??\P: 2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 2 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
pid Process 4020 cmd.exe 5196 cmd.exe - System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe - Interacts with shadow copies 3 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 1876 vssadmin.exe 4696 vssadmin.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4300 2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe 4300 2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeBackupPrivilege 4940 vssvc.exe Token: SeRestorePrivilege 4940 vssvc.exe Token: SeAuditPrivilege 4940 vssvc.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 4300 wrote to memory of 4020 4300 2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe 88 PID 4020 wrote to memory of 1876 4020 cmd.exe 90 PID 4300 wrote to memory of 5196 4300 2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe 95 PID 5196 wrote to memory of 4696 5196 cmd.exe 97 - Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-23_fc3601a757320537476d1b9d1eb1895e_babuk_destroyer_elex.exe"1⤵
- Enumerates connected drives
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4300 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet2⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:4020 -
C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:1876
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet2⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:5196 -
C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:4696
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4940
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Recovery\WindowsRE\How To Restore Your Files.txt
- Size 19B
- SHA256 67d3f3ff46c53cf84910590dacfac2a96688c69881c269e6dc91da0a66f849cb
- MD5 ffcef175d4f78c11c37e24f5f4b1fcdc
- SHA1 21acdc5303bdb56a73de2baf3eeddde7db206c0a
- SHA512 17295c89d13e75629d48da01eabf4bb6ebe03ee1ec16caede68c03e0a7b097056f42a9bd34ef39d1956ec672cfb7e7f90f1845887cf6b82a42d1b7c1eaf43cdb
- MD5 SHA1 SHA512