Analysis

  • max time kernel
    149s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    03-12-2024 14:26

General

  • Target

    C4I1C_Server.exe

  • Size

    23KB

  • MD5

    1011ca14bd55e56a16a393744aefcc47

  • SHA1

    912b56d8a53e77db250a904c68afb00f39a98429

  • SHA256

    1048b9978e4e8d928c8f5c057c0c1ac6213b4f456b6cf83558e213742f780bea

  • SHA512

    e093b3d79e56691637bf00cf4d1610a3891b7f9501d9874a3ed5fd8f2056a758f6e3270e9435cbe02cf5c2cb37bc07436959d402f76ef11173f93545229d73b3

  • SSDEEP

    384:FweXCQIreJig/8Z7SS1fEBpng6tgL2IBPZVmRvR6JZlbw8hqIusZzZVT:aLq411eRpcnuq

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

20.ip.gl.ply.gg:17798

Mutex

b86f87cbaaa618da21a2bbbc7c7dfc60

Attributes
  • reg_key

    b86f87cbaaa618da21a2bbbc7c7dfc60

  • splitter

    |'|'|

Signatures

  • Njrat family
  • 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
  • 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 35 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\C4I1C_Server.exe
    "C:\Users\Admin\AppData\Local\Temp\C4I1C_Server.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2248
    • C:\Users\Admin\AppData\Local\Temp\server.exe
      "C:\Users\Admin\AppData\Local\Temp\server.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2120
      • 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:2232

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    23KB

    MD5

    1011ca14bd55e56a16a393744aefcc47

    SHA1

    912b56d8a53e77db250a904c68afb00f39a98429

    SHA256

    1048b9978e4e8d928c8f5c057c0c1ac6213b4f456b6cf83558e213742f780bea

    SHA512

    e093b3d79e56691637bf00cf4d1610a3891b7f9501d9874a3ed5fd8f2056a758f6e3270e9435cbe02cf5c2cb37bc07436959d402f76ef11173f93545229d73b3

  • memory/2120-11-0x0000000074670000-0x0000000074C1B000-memory.dmp

    Filesize

    5.7MB

  • memory/2120-12-0x0000000074670000-0x0000000074C1B000-memory.dmp

    Filesize

    5.7MB

  • memory/2120-14-0x0000000074670000-0x0000000074C1B000-memory.dmp

    Filesize

    5.7MB

  • memory/2248-0-0x0000000074671000-0x0000000074672000-memory.dmp

    Filesize

    4KB

  • memory/2248-1-0x0000000074670000-0x0000000074C1B000-memory.dmp

    Filesize

    5.7MB

  • memory/2248-2-0x0000000074670000-0x0000000074C1B000-memory.dmp

    Filesize

    5.7MB

  • memory/2248-10-0x0000000074670000-0x0000000074C1B000-memory.dmp

    Filesize

    5.7MB