Resubmissions

05-01-2024 21:06

240105-zx7azaafbl 10

05-01-2024 21:06

240105-zxpe6abgh4 10

31-12-2023 03:06

231231-dlwjfaeban 10

Analysis

  • max time kernel
    444s
  • max time network
    454s
  • platform
    windows11-21h2_x64
  • resource
    win11-20231215-en
  • resource tags

    arch:x64arch:x86image:win11-20231215-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    31-12-2023 03:06

General

  • Target

    630f0ff24aeeae0c8f04383f3e193ac541ff07d371c584d1d8b2aa1f1d6492ed.exe

  • Size

    225KB

  • MD5

    3a087bb7ce04eef64a82958ee3507548

  • SHA1

    ee0a57ac86e2d6e87e8a29109c984a44aab53296

  • SHA256

    630f0ff24aeeae0c8f04383f3e193ac541ff07d371c584d1d8b2aa1f1d6492ed

  • SHA512

    4b314dd8b1992994b8194b6e729055feafb64f873b53289537a3d81f8a54929f5fc9a32bc134ffa3c44a71d7a7ded2f99af77459e3e186d7ccfadbba1747904e

  • SSDEEP

    3072:n6syAG2L/wgMrxFSbY3Fq5dQWQC0F0+aLTZtjaPPZMtcdlrRMC/p2wc:6iG2EgwFSc3U5dv0FOTDaPPZME9Bc

Malware Config

Signatures

  • Renames multiple (7901) files with added filename extension

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

  • Drops startup file 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops desktop.ini file(s) 30 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\630f0ff24aeeae0c8f04383f3e193ac541ff07d371c584d1d8b2aa1f1d6492ed.exe
    "C:\Users\Admin\AppData\Local\Temp\630f0ff24aeeae0c8f04383f3e193ac541ff07d371c584d1d8b2aa1f1d6492ed.exe"
    1⤵
    • Drops startup file
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1500
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{A4203AD4-A36E-40F9-8626-D25D7EDCD905}'" delete
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1628
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3612
  • C:\Windows\System32\wbem\WMIC.exe
    C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{A4203AD4-A36E-40F9-8626-D25D7EDCD905}'" delete
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4128

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads