Overview

overview

10

Static

static

3

2024-08-29...er.exe

windows7-x64

10

2024-08-29...er.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    14s
  • max time network
    18s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    29-08-2024 07:59

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General

  • Target

    2024-08-29_dc053caf95e8e0d08fe445b6bede2706_babuk_destroyer.exe

  • Size

    79KB

  • MD5

    dc053caf95e8e0d08fe445b6bede2706

  • SHA1

    12966dc66e05296d5a731d2a4b535180d3f0d101

  • SHA256

    854918956a53b2d39abbf67677bf8ad3c2f2506d6690162b8f8abe1655b9f957

  • SHA512

    30cbf03b374aae658f33deee2b3259b213bbee14ac83660d30b1103ccf7222660f39128cc2fd57f446f64c8badfd33b73df7b9a76f9383fc509e5b6677cb6cb8

  • SSDEEP

    1536:6ukWBeG/vEbmsrQLOJgY8ZZP8LHD4XWaNH71dLdG1iiFM2iG2nsf:1BeQsmsrQLOJgY8Zp8LHD4XWaNH71dLc

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 (202) files with added filename extension

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

    ransomware
  • 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 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.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-08-29_dc053caf95e8e0d08fe445b6bede2706_babuk_destroyer.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-29_dc053caf95e8e0d08fe445b6bede2706_babuk_destroyer.exe"
    1⤵
    • Enumerates connected drives
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1848
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2292
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:2744
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1568
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:1924
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2716

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    8KB

    MD5

    2af817219bb1d24a11ab839b9453b5f3

    SHA1

    f9ff9075f9472c41aeb93df2e439fe624dc143b0

    SHA256

    6a16454cad4534d51025f65277abaec0ff4a30082840154a35889445bb3ad0a0

    SHA512

    d443e149d8b097cc64b0bbbf65e3d660de43943a4b36ac4c41bfbdfe814fb895d7ba97128aa1235b85d2292b79afc451fbcb89cc6a56d33ecff7d93e18a15c30

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