Analysis

  • max time kernel
    739s
  • max time network
    741s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-05-2024 13:06

General

  • Target

    Client.exe

  • Size

    157KB

  • MD5

    2560eaeea2f78be73934dff77dc21115

  • SHA1

    47da9e0270fdd3c762dcb371614eaf4ff67add03

  • SHA256

    c5bbe1f75d15903b38f0c1e944b8205dcbbb8033206b22921ad90bc64b0699e6

  • SHA512

    5ac9af16716e2e9ffa1cec0f74f273468789caf157ddfe7cbf20e6efdf03ad5f0c86d46bf8944c15a79c8d890ec4f683a9c4758c44c3ce5a5f0d3915f9fe977c

  • SSDEEP

    3072:CISoucNzBhW8cKaf7uWQOPodew6FPudZjbahd1P+Aw+RMqgZ:YK5cKsK/jdew6xulbaP+ug

Malware Config

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 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
  • Executes dropped EXE 1 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).

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Client.exe
    "C:\Users\Admin\AppData\Local\Temp\Client.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1436
    • C:\Users\Admin\AppData\Local\Temp\WindowsServices.exe
      "C:\Users\Admin\AppData\Local\Temp\WindowsServices.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2736
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\WindowsServices.exe" "WindowsServices.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:2852
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3772,i,14486271492189381216,15799931579469722648,262144 --variations-seed-version --mojo-platform-channel-handle=4116 /prefetch:8
    1⤵
      PID:888
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4128,i,14486271492189381216,15799931579469722648,262144 --variations-seed-version --mojo-platform-channel-handle=3760 /prefetch:8
      1⤵
        PID:2144

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\WindowsServices.exe

        Filesize

        157KB

        MD5

        2560eaeea2f78be73934dff77dc21115

        SHA1

        47da9e0270fdd3c762dcb371614eaf4ff67add03

        SHA256

        c5bbe1f75d15903b38f0c1e944b8205dcbbb8033206b22921ad90bc64b0699e6

        SHA512

        5ac9af16716e2e9ffa1cec0f74f273468789caf157ddfe7cbf20e6efdf03ad5f0c86d46bf8944c15a79c8d890ec4f683a9c4758c44c3ce5a5f0d3915f9fe977c

      • memory/1436-0-0x0000000074D82000-0x0000000074D83000-memory.dmp

        Filesize

        4KB

      • memory/1436-1-0x0000000074D80000-0x0000000075331000-memory.dmp

        Filesize

        5.7MB

      • memory/1436-2-0x0000000074D80000-0x0000000075331000-memory.dmp

        Filesize

        5.7MB

      • memory/1436-13-0x0000000074D80000-0x0000000075331000-memory.dmp

        Filesize

        5.7MB

      • memory/2736-12-0x0000000074D80000-0x0000000075331000-memory.dmp

        Filesize

        5.7MB

      • memory/2736-14-0x0000000074D80000-0x0000000075331000-memory.dmp

        Filesize

        5.7MB

      • memory/2736-17-0x0000000074D80000-0x0000000075331000-memory.dmp

        Filesize

        5.7MB

      • memory/2736-18-0x0000000074D80000-0x0000000075331000-memory.dmp

        Filesize

        5.7MB

      • memory/2736-19-0x0000000074D80000-0x0000000075331000-memory.dmp

        Filesize

        5.7MB