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Analysis

  • max time kernel
    120s
  • max time network
    117s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/11/2024, 04:59

General

  • Target

    25c89c5c8c5c56fd1a5320cf172be911738b4b1387c9900a6046c3549f6dda24N.exe

  • Size

    23KB

  • MD5

    004c62b10973764a42726abfb4bb9d50

  • SHA1

    eaff5879ce0012a6e0468c30dee2cc5a2a7fc909

  • SHA256

    25c89c5c8c5c56fd1a5320cf172be911738b4b1387c9900a6046c3549f6dda24

  • SHA512

    af7e6b9225068792b7b1ac5e8afcd8e5dacc3450fa6bd1d27214b9d07315bd5c75ff8d63c753e07525081be02c520a0bed91df7454acc3c65a428077ebdeb270

  • SSDEEP

    384:1oWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZIS:67O89p2rRpcnuI

Malware Config

Signatures

  • Njrat family
  • 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.

  • 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).

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of AdjustPrivilegeToken 27 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\25c89c5c8c5c56fd1a5320cf172be911738b4b1387c9900a6046c3549f6dda24N.exe
    "C:\Users\Admin\AppData\Local\Temp\25c89c5c8c5c56fd1a5320cf172be911738b4b1387c9900a6046c3549f6dda24N.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2796
    • C:\Users\Admin\AppData\Local\Temp\server.exe
      "C:\Users\Admin\AppData\Local\Temp\server.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2764
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:2400

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    23KB

    MD5

    004c62b10973764a42726abfb4bb9d50

    SHA1

    eaff5879ce0012a6e0468c30dee2cc5a2a7fc909

    SHA256

    25c89c5c8c5c56fd1a5320cf172be911738b4b1387c9900a6046c3549f6dda24

    SHA512

    af7e6b9225068792b7b1ac5e8afcd8e5dacc3450fa6bd1d27214b9d07315bd5c75ff8d63c753e07525081be02c520a0bed91df7454acc3c65a428077ebdeb270

  • memory/2764-12-0x0000000074EE0000-0x0000000075491000-memory.dmp

    Filesize

    5.7MB

  • memory/2764-14-0x0000000074EE0000-0x0000000075491000-memory.dmp

    Filesize

    5.7MB

  • memory/2764-15-0x0000000074EE0000-0x0000000075491000-memory.dmp

    Filesize

    5.7MB

  • memory/2796-0-0x0000000074EE2000-0x0000000074EE3000-memory.dmp

    Filesize

    4KB

  • memory/2796-1-0x0000000074EE0000-0x0000000075491000-memory.dmp

    Filesize

    5.7MB

  • memory/2796-2-0x0000000074EE0000-0x0000000075491000-memory.dmp

    Filesize

    5.7MB

  • memory/2796-13-0x0000000074EE0000-0x0000000075491000-memory.dmp

    Filesize

    5.7MB