Overview

overview

10

Static

static

10

2024-04-19...er.exe

windows7-x64

10

2024-04-19...er.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-04-2024 21:01

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General

  • Target

    2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe

  • Size

    79KB

  • MD5

    d5eaa5c4f55781bc3f161e7c583e45c4

  • SHA1

    d3796032c80f40cd7e1c6c8b5896ac8945c3eee1

  • SHA256

    adb10da10d9e2cc882bfadf2210a6cb2fdc62308470200401ffe869c01405995

  • SHA512

    5ae0af58d804e8f1ec624d1f4ea68a625d75373d14c73ea7ce8f0a988c0427a69138fa8ceeab978f7db3c246a44169fa33aa79107897c94b483cd657bde176ff

  • SSDEEP

    1536:apoUyFydC/ZbtsrQLOJgY8ZZP8LHD4XWaNH71dLdG1iiFM2iG2ncf:1UyFydC/NtsrQLOJgY8Zp8LHD4XWaNHY

Score
10/10
babukransomware

Malware Config

Signatures

  • Babuk Locker

    RaaS first seen in 2021 initially called Vasa Locker.

    ransomwarebabuk
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Renames multiple (159) 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\2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2368
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2816
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:392
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4388
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:2504
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3560

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

2
T1070

File Deletion

2
T1070.004

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

2
T1490

Resource Development

Reconnaissance

Replay Monitor

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Downloads

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

    8KB

    MD5

    2af817219bb1d24a11ab839b9453b5f3

    SHA1

    f9ff9075f9472c41aeb93df2e439fe624dc143b0

    SHA256

    6a16454cad4534d51025f65277abaec0ff4a30082840154a35889445bb3ad0a0

    SHA512

    d443e149d8b097cc64b0bbbf65e3d660de43943a4b36ac4c41bfbdfe814fb895d7ba97128aa1235b85d2292b79afc451fbcb89cc6a56d33ecff7d93e18a15c30

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