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Analysis

  • max time kernel
    121s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    07/03/2025, 17:25

General

  • Target

    2025-03-07_d81bb664aedc6147c68ef73ba08f096b_babuk_destroyer.exe

  • Size

    87KB

  • MD5

    d81bb664aedc6147c68ef73ba08f096b

  • SHA1

    e46b65dd5f553c55cb90626eeab818d2f3789135

  • SHA256

    805a59f4594f972ec53bc302e786bb1d74c488a769f785cfebf3c90d3352c228

  • SHA512

    ab519a7bc40264210e5201b889abae0cdbfecdde5e6db594057b32582cb54d30ddca6acd3b8b516d16b84d216f50b962abb48c20a0024f947c06f5747b450d3c

  • SSDEEP

    1536:lIRJMCUzAtXsrQLOJgY8ZZP8LHD4XWaNH71dLdG1iiFM2iG2NMkuQEoZF:4MCdpsrQLOJgY8Zp8LHD4XWaNH71dLdN

Malware Config

Signatures

  • Babuk Locker

    RaaS first seen in 2021 initially called Vasa Locker.

  • Babuk family
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Renames multiple (179) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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.

  • Interacts with shadow copies 3 TTPs 2 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • 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\2025-03-07_d81bb664aedc6147c68ef73ba08f096b_babuk_destroyer.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-03-07_d81bb664aedc6147c68ef73ba08f096b_babuk_destroyer.exe"
    1⤵
    • Enumerates connected drives
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2912
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3028
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:1056
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1496
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:324
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1836

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\How To Restore Your Files.txt

    Filesize

    8KB

    MD5

    2af817219bb1d24a11ab839b9453b5f3

    SHA1

    f9ff9075f9472c41aeb93df2e439fe624dc143b0

    SHA256

    6a16454cad4534d51025f65277abaec0ff4a30082840154a35889445bb3ad0a0

    SHA512

    d443e149d8b097cc64b0bbbf65e3d660de43943a4b36ac4c41bfbdfe814fb895d7ba97128aa1235b85d2292b79afc451fbcb89cc6a56d33ecff7d93e18a15c30