Overview

overview

10

Static

static

3

2024-11-03...er.exe

windows7-x64

10

2024-11-03...er.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    123s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-11-2024 20:21

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General

  • Target

    2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe

  • Size

    79KB

  • MD5

    2298d910b2d34e870e0f561eda4dcfc6

  • SHA1

    078b2cace5161e34aaaaeba6bfbe3f6259651f34

  • SHA256

    bb845cf9c1674452a995f58b3971c04fd67a0a8d256288e58cb4454bb80a5efe

  • SHA512

    6465216a71c116321a6e7d9e1746247cfe1c29a5897422f13ed55cfb3a0daa42ba673a7cc308bf5440c6bf5fb084d065a6b4aab84c11ca1d81fdf23c09cbfe33

  • SSDEEP

    1536:N8WkWBeG/vEbmsrQLOJgY8ZZP8LHD4XWaNH71dLdG1iiFM2iG2nsf:lBeQsmsrQLOJgY8Zp8LHD4XWaNH71dLc

Score
10/10
babukdefense_evasiondiscoveryexecutionimpactransomware

Malware Config

Signatures

  • Babuk Locker

    RaaS first seen in 2021 initially called Vasa Locker.

    ransomwarebabuk
  • Babuk family
    babuk
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Renames multiple (153) files with added filename extension

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

    ransomware
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Enumerates connected drives 3 TTPs 23 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.

    discovery
  • Interacts with shadow copies 3 TTPs 2 IoCs

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

    ransomware
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-03_2298d910b2d34e870e0f561eda4dcfc6_babuk_destroyer.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2372
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2988
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:4680
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5032
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:5004
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3052

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    259B

    MD5

    f026fb213f419a400ba83e1a69d26472

    SHA1

    821f1318d077065fe1a3fe2075f053f1191d5739

    SHA256

    b87c7d852c60b34e5986e2d41fb4f644df11f7350ef2272ad58a469e476d2bc1

    SHA512

    6929aa4dccef21718625513ab21c9e39599969d6350dadfa00747cc8bde302d2d7158df845686f1e607b2b05126697263982f6ab61e189781117c9329176e50e

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