Overview

overview

10

Static

static

3

2024-09-04...er.exe

windows7-x64

10

2024-09-04...er.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-09-2024 00:26

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General

  • Target

    2024-09-04_10a746200164524d5e4e44abc2ddc5ea_babuk_destroyer.exe

  • Size

    79KB

  • MD5

    10a746200164524d5e4e44abc2ddc5ea

  • SHA1

    7d0f165804baa92b14a184da7f84da322d620939

  • SHA256

    f89066114c3062fa3ed6049ee2662ced47f725cd383fdbde1049b413e58faa82

  • SHA512

    1290db2165066ac08baed1e6afa3bd73d84062a4e05e71b8457e35a33ccd919eb4d2f4ef49f57d59a5de7d83d47b09152d7d8f292b802db4ae284348dba03145

  • SSDEEP

    1536:PJkWBeGovEb+srQLOJgY8ZZP8LHD4XWaNH71dLdG1iiFM2iG2vsf0:DBeJs+srQLOJgY8Zp8LHD4XWaNH71dLH

Score
10/10
babukdefense_evasiondiscoveryexecutionimpactransomware

Malware Config

Signatures

  • Babuk Locker

    RaaS first seen in 2021 initially called Vasa Locker.

    ransomwarebabuk
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Renames multiple (154) 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\2024-09-04_10a746200164524d5e4e44abc2ddc5ea_babuk_destroyer.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-04_10a746200164524d5e4e44abc2ddc5ea_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:2436
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1028
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:3040
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2216
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:3548
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3964

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\3D Objects\How to decrypt your files.txt
    Filesize

    4B

    MD5

    1cb251ec0d568de6a929b520c4aed8d1

    SHA1

    372ea08cab33e71c02c651dbc83a474d32c676ea

    SHA256

    982d9e3eb996f559e633f4d194def3761d909f5a3b647d1a851fead67c32c9d1

    SHA512

    eaf2c12742cb8c161bcbd84b032b9bb98999a23282542672ca01cc6edd268f7dce9987ad6b2bc79305634f89d90b90102bcd59a57e7135b8e3ceb93c0597117b

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