Analysis

  • max time kernel
    119s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    08-12-2024 02:47

General

  • Target

    918ec5924d20834ed7c39bdddbb5fda4bbbcf067ba7248a97438793c98d9de60N.exe

  • Size

    23KB

  • MD5

    b9280f9442b675e6a0717c8e05e28460

  • SHA1

    c240f6cfbef7077553f4a39c23eb06984f1fece8

  • SHA256

    918ec5924d20834ed7c39bdddbb5fda4bbbcf067ba7248a97438793c98d9de60

  • SHA512

    90bfd624a48b7e9171c90e4ece3f31d1c7b9f52ed88bb95fc8fc25d09b2c660e26d82b11d07142a690bd47a13c1e5742a4879c2961f5367da829ba36022006f5

  • SSDEEP

    384:EoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZIr:z7O89p2rRpcnuJ

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

10.10.1.11:5552

Mutex

7657c14284185fbd3fb108b43c7467ba

Attributes
  • reg_key

    7657c14284185fbd3fb108b43c7467ba

  • splitter

    |'|'|

Signatures

  • Njrat family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 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 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\918ec5924d20834ed7c39bdddbb5fda4bbbcf067ba7248a97438793c98d9de60N.exe
    "C:\Users\Admin\AppData\Local\Temp\918ec5924d20834ed7c39bdddbb5fda4bbbcf067ba7248a97438793c98d9de60N.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1748
    • 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:2504
      • 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:2768

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    23KB

    MD5

    b9280f9442b675e6a0717c8e05e28460

    SHA1

    c240f6cfbef7077553f4a39c23eb06984f1fece8

    SHA256

    918ec5924d20834ed7c39bdddbb5fda4bbbcf067ba7248a97438793c98d9de60

    SHA512

    90bfd624a48b7e9171c90e4ece3f31d1c7b9f52ed88bb95fc8fc25d09b2c660e26d82b11d07142a690bd47a13c1e5742a4879c2961f5367da829ba36022006f5

  • memory/1748-0-0x0000000074D81000-0x0000000074D82000-memory.dmp

    Filesize

    4KB

  • memory/1748-1-0x0000000074D80000-0x000000007532B000-memory.dmp

    Filesize

    5.7MB

  • memory/1748-2-0x0000000074D80000-0x000000007532B000-memory.dmp

    Filesize

    5.7MB

  • memory/1748-11-0x0000000074D80000-0x000000007532B000-memory.dmp

    Filesize

    5.7MB

  • memory/2504-10-0x0000000074D80000-0x000000007532B000-memory.dmp

    Filesize

    5.7MB

  • memory/2504-12-0x0000000074D80000-0x000000007532B000-memory.dmp

    Filesize

    5.7MB