Overview

overview

10

Static

static

10

2024-06-23...er.exe

windows7-x64

10

2024-06-23...er.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    126s
  • max time network
    129s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-06-2024 14:33

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General

  • Target

    2024-06-23_702fd60faabd529ca674d806564c36b1_babuk_destroyer.exe

  • Size

    79KB

  • MD5

    702fd60faabd529ca674d806564c36b1

  • SHA1

    7f22bb89b1293405201cf4ce0816b5714fc9576a

  • SHA256

    3d893337a014bd80b29fcd1d1b11d55d8cd245061d250d61a2d1207c6a959eba

  • SHA512

    b0685f2855da7c18da9e723b517b74300b0976b5ea10e2c8b0205608aa74cbc69f9349dbb5a6565ec12e7dfa913e9296a13866f90c58102e235b6b03d12c763b

  • SSDEEP

    1536:b+qxi5vmhs2bxsrQLOJgY8ZZP8LHD4XWaNH71dLdG1iiFM2iG2nC3:hxiJ2xsrQLOJgY8Zp8LHD4XWaNH71dLy

Score
10/10
babukdefense_evasionexecutionimpactransomware

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 (189) 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 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\2024-06-23_702fd60faabd529ca674d806564c36b1_babuk_destroyer.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-23_702fd60faabd529ca674d806564c36b1_babuk_destroyer.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3332
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1672
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:1744
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4268
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:3984
  • 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 --field-trial-handle=4084,i,2113996974559895641,18156918660790954073,262144 --variations-seed-version --mojo-platform-channel-handle=4412 /prefetch:8
    1⤵
      PID:4624
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4556

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      8KB

      MD5

      2af817219bb1d24a11ab839b9453b5f3

      SHA1

      f9ff9075f9472c41aeb93df2e439fe624dc143b0

      SHA256

      6a16454cad4534d51025f65277abaec0ff4a30082840154a35889445bb3ad0a0

      SHA512

      d443e149d8b097cc64b0bbbf65e3d660de43943a4b36ac4c41bfbdfe814fb895d7ba97128aa1235b85d2292b79afc451fbcb89cc6a56d33ecff7d93e18a15c30

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