Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    06-09-2024 12:28

General

  • Target

    23dd4610693bb9928f8c224440ad8e30N.exe

  • Size

    1.3MB

  • MD5

    23dd4610693bb9928f8c224440ad8e30

  • SHA1

    2bd398fbd6bb00801a5ac15650afcff4e3b7ee8c

  • SHA256

    35b588651334998c6473ba19b676527e5e4782a5d366e5aee5f6151e927ef1b5

  • SHA512

    9b3f635e105c41dd93f806cbe09cd73a4585f26ed6ff349d21862fdd4d3990e3bc701a0199eed9969eb101691a8363234e67f134a4d86ac397ff528276970c3c

  • SSDEEP

    24576:tfZlf2TdDY5LI6jrXDHt4D4lfLBSDm9kN4wIa7LwQVZjI6jZZjI6jVqOb/trJYwZ:TeyBgV

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

C2

maestro49.ddns.net:5552

Mutex

1f14d442afed773c814b9d245e6118bf

Attributes
  • reg_key

    1f14d442afed773c814b9d245e6118bf

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • 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).

  • 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.

  • Kills process with taskkill 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 28 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\23dd4610693bb9928f8c224440ad8e30N.exe
    "C:\Users\Admin\AppData\Local\Temp\23dd4610693bb9928f8c224440ad8e30N.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2072
    • C:\Users\Admin\AppData\Roaming\ProcessHacker.exe
      "C:\Users\Admin\AppData\Roaming\ProcessHacker.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2176
      • C:\Windows\system32\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\ProcessHacker.exe" "ProcessHacker.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        PID:2840
      • C:\Windows\system32\taskkill.exe
        taskkill /F /IM Exsample.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2884

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\ProcessHacker.exe

    Filesize

    1.3MB

    MD5

    23dd4610693bb9928f8c224440ad8e30

    SHA1

    2bd398fbd6bb00801a5ac15650afcff4e3b7ee8c

    SHA256

    35b588651334998c6473ba19b676527e5e4782a5d366e5aee5f6151e927ef1b5

    SHA512

    9b3f635e105c41dd93f806cbe09cd73a4585f26ed6ff349d21862fdd4d3990e3bc701a0199eed9969eb101691a8363234e67f134a4d86ac397ff528276970c3c

  • memory/2072-0-0x000007FEF56EE000-0x000007FEF56EF000-memory.dmp

    Filesize

    4KB

  • memory/2072-1-0x000007FEF5430000-0x000007FEF5DCD000-memory.dmp

    Filesize

    9.6MB

  • memory/2072-2-0x000007FEF5430000-0x000007FEF5DCD000-memory.dmp

    Filesize

    9.6MB

  • memory/2072-3-0x0000000000450000-0x0000000000460000-memory.dmp

    Filesize

    64KB

  • memory/2072-9-0x000007FEF5430000-0x000007FEF5DCD000-memory.dmp

    Filesize

    9.6MB

  • memory/2176-10-0x000007FEF5430000-0x000007FEF5DCD000-memory.dmp

    Filesize

    9.6MB

  • memory/2176-11-0x000007FEF5430000-0x000007FEF5DCD000-memory.dmp

    Filesize

    9.6MB

  • memory/2176-13-0x000007FEF5430000-0x000007FEF5DCD000-memory.dmp

    Filesize

    9.6MB

  • memory/2176-15-0x000007FEF5430000-0x000007FEF5DCD000-memory.dmp

    Filesize

    9.6MB

  • memory/2176-14-0x000007FEF5430000-0x000007FEF5DCD000-memory.dmp

    Filesize

    9.6MB