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Analysis

  • max time kernel
    149s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    21/11/2024, 02:36

General

  • Target

    56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62.exe

  • Size

    291KB

  • MD5

    8e8f6ffd1c602b7c00ba2e87319fe83e

  • SHA1

    03ebc5f035c06abb8b66c5d47fd41d43d6b6035b

  • SHA256

    56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62

  • SHA512

    d70c5220ef7071f0513e9e7436b42c093dbc298be2ee978a7795cfd6552693f9f006c26f00f6e217cfbae5904d15b840baa12409f2eaaf8f03ec8d71cdd11422

  • SSDEEP

    6144:L5b5bjevaup+gXzefbnGIudk/6X44yvVe+RTPzO:NbJcPSjn8q6oTteeC

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

chorom

C2

ahmedstar123.ddns.net:1177

Mutex

5fa843546065a766a9db244b1f33ea6e

Attributes
  • reg_key

    5fa843546065a766a9db244b1f33ea6e

  • 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 33 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62.exe
    "C:\Users\Admin\AppData\Local\Temp\56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1312
    • 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:3012
      • 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:2828

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    291KB

    MD5

    8e8f6ffd1c602b7c00ba2e87319fe83e

    SHA1

    03ebc5f035c06abb8b66c5d47fd41d43d6b6035b

    SHA256

    56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62

    SHA512

    d70c5220ef7071f0513e9e7436b42c093dbc298be2ee978a7795cfd6552693f9f006c26f00f6e217cfbae5904d15b840baa12409f2eaaf8f03ec8d71cdd11422

  • memory/1312-19-0x0000000073FA0000-0x000000007468E000-memory.dmp

    Filesize

    6.9MB

  • memory/1312-1-0x0000000000E60000-0x0000000000EAE000-memory.dmp

    Filesize

    312KB

  • memory/1312-2-0x0000000000500000-0x0000000000512000-memory.dmp

    Filesize

    72KB

  • memory/1312-3-0x0000000073FA0000-0x000000007468E000-memory.dmp

    Filesize

    6.9MB

  • memory/1312-4-0x0000000000980000-0x00000000009B6000-memory.dmp

    Filesize

    216KB

  • memory/1312-5-0x0000000073FA0000-0x000000007468E000-memory.dmp

    Filesize

    6.9MB

  • memory/1312-6-0x0000000073FA0000-0x000000007468E000-memory.dmp

    Filesize

    6.9MB

  • memory/1312-7-0x0000000000940000-0x000000000094C000-memory.dmp

    Filesize

    48KB

  • memory/1312-15-0x0000000073FAE000-0x0000000073FAF000-memory.dmp

    Filesize

    4KB

  • memory/1312-0-0x0000000073FAE000-0x0000000073FAF000-memory.dmp

    Filesize

    4KB

  • memory/1312-20-0x0000000073FA0000-0x000000007468E000-memory.dmp

    Filesize

    6.9MB

  • memory/3012-18-0x0000000073FA0000-0x000000007468E000-memory.dmp

    Filesize

    6.9MB

  • memory/3012-16-0x0000000000100000-0x000000000014E000-memory.dmp

    Filesize

    312KB

  • memory/3012-17-0x0000000000250000-0x0000000000262000-memory.dmp

    Filesize

    72KB

  • memory/3012-21-0x0000000073FA0000-0x000000007468E000-memory.dmp

    Filesize

    6.9MB

  • memory/3012-22-0x0000000073FA0000-0x000000007468E000-memory.dmp

    Filesize

    6.9MB

  • memory/3012-23-0x0000000073FA0000-0x000000007468E000-memory.dmp

    Filesize

    6.9MB

  • memory/3012-25-0x0000000073FA0000-0x000000007468E000-memory.dmp

    Filesize

    6.9MB

  • memory/3012-26-0x0000000073FA0000-0x000000007468E000-memory.dmp

    Filesize

    6.9MB

  • memory/3012-27-0x0000000073FA0000-0x000000007468E000-memory.dmp

    Filesize

    6.9MB