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Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/10/2022, 16:29

General

  • Target

    2baf488484fded3d725a36d1e47e241dfefcdb0dc1c41ce4250af9a17b61305e.exe

  • Size

    28KB

  • MD5

    83646dfbc227fefc7fc941feca328c20

  • SHA1

    55ea993d57dfbef0b32958576ac861393c7dd3f1

  • SHA256

    2baf488484fded3d725a36d1e47e241dfefcdb0dc1c41ce4250af9a17b61305e

  • SHA512

    d9c196fc333d625b59e49ebb7b9515fffb75230f3cba9190f8b3d78bd4e74eb65f15a87c344ed9256cbcc99b8ae325c91c0783b4fda1e22208b4dc7e80ca6426

  • SSDEEP

    384:h8eUq6Z/n5wT9MZ5ZIcq0yHBxcUKHix4UV+Kq8QqEMM8Jwj2a0LE2sfvbilMxwkq:2p3le+5ZTyH74UVWX8Jwh0LWXbZm

Malware Config

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 45 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2baf488484fded3d725a36d1e47e241dfefcdb0dc1c41ce4250af9a17b61305e.exe
    "C:\Users\Admin\AppData\Local\Temp\2baf488484fded3d725a36d1e47e241dfefcdb0dc1c41ce4250af9a17b61305e.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4348
    • C:\Users\Admin\Explorer.exe
      "C:\Users\Admin\Explorer.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4468
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\Explorer.exe" "Explorer.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:1008

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\Explorer.exe

    Filesize

    28KB

    MD5

    83646dfbc227fefc7fc941feca328c20

    SHA1

    55ea993d57dfbef0b32958576ac861393c7dd3f1

    SHA256

    2baf488484fded3d725a36d1e47e241dfefcdb0dc1c41ce4250af9a17b61305e

    SHA512

    d9c196fc333d625b59e49ebb7b9515fffb75230f3cba9190f8b3d78bd4e74eb65f15a87c344ed9256cbcc99b8ae325c91c0783b4fda1e22208b4dc7e80ca6426

  • C:\Users\Admin\Explorer.exe

    Filesize

    28KB

    MD5

    83646dfbc227fefc7fc941feca328c20

    SHA1

    55ea993d57dfbef0b32958576ac861393c7dd3f1

    SHA256

    2baf488484fded3d725a36d1e47e241dfefcdb0dc1c41ce4250af9a17b61305e

    SHA512

    d9c196fc333d625b59e49ebb7b9515fffb75230f3cba9190f8b3d78bd4e74eb65f15a87c344ed9256cbcc99b8ae325c91c0783b4fda1e22208b4dc7e80ca6426

  • memory/4348-135-0x00000000752A0000-0x0000000075851000-memory.dmp

    Filesize

    5.7MB

  • memory/4348-138-0x00000000752A0000-0x0000000075851000-memory.dmp

    Filesize

    5.7MB

  • memory/4468-136-0x00000000752A0000-0x0000000075851000-memory.dmp

    Filesize

    5.7MB

  • memory/4468-139-0x00000000752A0000-0x0000000075851000-memory.dmp

    Filesize

    5.7MB