Analysis

  • max time kernel
    42s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    08/02/2023, 18:48

General

  • Target

    LB3_pass.exe

  • Size

    149KB

  • MD5

    43e05ce9ffcf4948d7ee11ff17d5a596

  • SHA1

    13d714a431fac8572b3e2b63f65fb067fd145293

  • SHA256

    87184bbef239d3062c4af872fc5b43fb79622ce2e0c6072e40e3c3622b0e52d9

  • SHA512

    1319c80c5bb77f046dc0fc2af8c669cceb5c80c3f633614da87c45918eef2eb58f8811e5617d32f9e8616d1b4ba48ae28ea81da84600afe5bafde6ae46d3fc27

  • SSDEEP

    3072:oltWxaOXKDIzkpN7anX/YhbtX0V+GFkofkGDgAIYkyRgD+Pdt9:IIxaOXKDIzqN7oXAdtkvFk2kGDw2DT9

Score
10/10

Malware Config

Signatures

  • Lockbit

    Ransomware family with multiple variants released since late 2019.

  • Rule to detect Lockbit 3.0 ransomware Windows payload 1 IoCs
  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\LB3_pass.exe
    "C:\Users\Admin\AppData\Local\Temp\LB3_pass.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1684
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 88
      2⤵
      • Program crash
      PID:836

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1684-55-0x0000000000400000-0x0000000000429000-memory.dmp

          Filesize

          164KB