Overview

overview

10

Static

static

10

2024-04-12...er.exe

windows7-x64

10

2024-04-12...er.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    125s
  • max time network
    134s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-04-2024 00:05

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General

  • Target

    2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe

  • Size

    71KB

  • MD5

    44fcd277d0a92c0b7eafd911ccc93864

  • SHA1

    6beed4cec39a2f126738e9a8909cd84f4edb5736

  • SHA256

    e36819a304d8eb00a404b3ff1dce1f708de985ca87f56e8c571a4a14740ffd62

  • SHA512

    2b6085c757242f552b1db42e9353c41d9ff8c5f7b9cc69ee4441087862a16487ccc58690d08487fdb5fc9e8072b275bf74085ee901727fdd2eacdc4fa5eadf04

  • SSDEEP

    1536:AXcbhZMBIWhuUsrQLOJgY8ZZP8LHD4XWaNH71dLdG1iiFM2iG2AH:lhZEVsrQLOJgY8Zp8LHD4XWaNH71dLdS

Score
10/10
lockfileransomware

Malware Config

Signatures

  • LockFile

    LockFile is a new ransomware that emerged in July 2021 with ProxyShell vulnerabilties.

    ransomwarelockfile
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Renames multiple (202) 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).

  • Interacts with shadow copies 2 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\2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3572
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4536
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:3768
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5624
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:5716
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3892,i,18365831710660765070,18037862594269997910,262144 --variations-seed-version --mojo-platform-channel-handle=4112 /prefetch:8
    1⤵
      PID:5156
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:5380

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Recovery\WindowsRE\How To Restore Your Files.txt
      Filesize

      898B

      MD5

      0b382cae2e96dc2444193e0d1ff7f1a2

      SHA1

      f8100f578b0d07923ab9ba46361b2797228ab4ea

      SHA256

      5347b1ece7f3b476cfb778aa628134041078caf39f62c9da2f2479c5d74f1f1c

      SHA512

      fff1546d25f85c94cd629b975e2ba4f919e293d1bf79363cee2ff359ea3a292394313cc7ffcdcc2a0d5e18577e434bbad33418e9edf87b85db86edb1fe226acd

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