Analysis

  • max time kernel
    148s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    08/11/2024, 02:11

General

  • Target
    a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe
  • Size 83KB
  • Sample241108-cma4fsshmf
  • SHA256 a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • njrat

Version
  • 0.7d

Botnet
  • test

C2
  • hakim32.ddns.net:2000

  • 2.tcp.ngrok.io:17971

Mutex
  • 7510b18d6d0540b453f74c07e4a22b0c

Attributes
  • reg_key

    7510b18d6d0540b453f74c07e4a22b0c

  • splitter

    |'|'|

Signatures

  • Njrat family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 5 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 5 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 37 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe
    "C:\Users\Admin\AppData\Local\Temp\a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1076
    • C:\Users\Admin\AppData\Local\Temp\Checker.exe
      "C:\Users\Admin\AppData\Local\Temp\Checker.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2408
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c pause
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2376
    • C:\Users\Admin\AppData\Local\Temp\SA_Checker.exe
      "C:\Users\Admin\AppData\Local\Temp\SA_Checker.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2688
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\SA_Checker.exe" "SA_Checker.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:2824

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        Checker.exe

        • Path \Users\Admin\AppData\Local\Temp\Checker.exe
        • Size 41KB
        • SHA256 bda3eaba6bd0015d68a261b9f8afd2431f702524b7a333fca3b3514058aaff48
        • MD5 SHA1 SHA512 SSDEEP

        SA_Checker.exe

        • Path \Users\Admin\AppData\Local\Temp\SA_Checker.exe
        • Size 93KB
        • SHA256 d08373a237b6f58a7b1215926fac0faefcdddbf7967b4226f84cbdb275a261f0
        • MD5 SHA1 SHA512 SSDEEP

        memory/2688-18-0x00000000745C1000-0x00000000745C2000-memory.dmp

        memory/2688-19-0x00000000745C0000-0x0000000074B6B000-memory.dmp

        memory/2688-20-0x00000000745C0000-0x0000000074B6B000-memory.dmp

        memory/2688-22-0x00000000745C0000-0x0000000074B6B000-memory.dmp

        memory/2688-23-0x00000000745C0000-0x0000000074B6B000-memory.dmp