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
    30-12-2024 20:29

General

  • Target

    dd72ef12b1774273fd4a94929be771612b9d9a0aa6fb3d6ccdeb12645f041bbbN.exe

  • Size

    23KB

  • MD5

    73ade75d6f3c6a58b34f6504f3b37d30

  • SHA1

    7f11ad0c2675eaa382fff03ee65f909489558991

  • SHA256

    dd72ef12b1774273fd4a94929be771612b9d9a0aa6fb3d6ccdeb12645f041bbb

  • SHA512

    9eb75744f984c131597163c035255c35406c0f918408330d46d8c94330f2cb1802a17410f0adba3729ce86707a309f23f6f55a09c3bee1a953efc4f2359c73af

  • SSDEEP

    384:ioWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZIp:l7O89p2rRpcnuf

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\dd72ef12b1774273fd4a94929be771612b9d9a0aa6fb3d6ccdeb12645f041bbbN.exe
    "C:\Users\Admin\AppData\Local\Temp\dd72ef12b1774273fd4a94929be771612b9d9a0aa6fb3d6ccdeb12645f041bbbN.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1620
    • 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:2532
      • 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:2844

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    23KB

    MD5

    73ade75d6f3c6a58b34f6504f3b37d30

    SHA1

    7f11ad0c2675eaa382fff03ee65f909489558991

    SHA256

    dd72ef12b1774273fd4a94929be771612b9d9a0aa6fb3d6ccdeb12645f041bbb

    SHA512

    9eb75744f984c131597163c035255c35406c0f918408330d46d8c94330f2cb1802a17410f0adba3729ce86707a309f23f6f55a09c3bee1a953efc4f2359c73af

  • memory/1620-0-0x0000000074BC1000-0x0000000074BC2000-memory.dmp

    Filesize

    4KB

  • memory/1620-1-0x0000000074BC0000-0x000000007516B000-memory.dmp

    Filesize

    5.7MB

  • memory/1620-2-0x0000000074BC0000-0x000000007516B000-memory.dmp

    Filesize

    5.7MB

  • memory/1620-11-0x0000000074BC0000-0x000000007516B000-memory.dmp

    Filesize

    5.7MB

  • memory/2532-10-0x0000000074BC0000-0x000000007516B000-memory.dmp

    Filesize

    5.7MB

  • memory/2532-12-0x0000000074BC0000-0x000000007516B000-memory.dmp

    Filesize

    5.7MB

  • memory/2532-13-0x0000000074BC0000-0x000000007516B000-memory.dmp

    Filesize

    5.7MB