Analysis

  • max time kernel
    119s
  • max time network
    117s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-01-2025 16:24

General

  • Target

    6bff62f418c98855248ac7e0c87bbd892a7ad17aa03676804196daf31dd04f6d.exe

  • Size

    30KB

  • MD5

    19de48e4e81f875006c35199f29f0f11

  • SHA1

    9c49296219e43eb7ee1cbe278b3eb57939b15b59

  • SHA256

    6bff62f418c98855248ac7e0c87bbd892a7ad17aa03676804196daf31dd04f6d

  • SHA512

    57555951d496e1e8fbd9e6ae0f7b76630a2d61d665ce19da1a89c330d4cc3fea7bbd9f91f88e38eb93e62a6b11f221844873f6d0af751f940fff9aecad487a7b

  • SSDEEP

    768:ZWN1SPXImFO2n8dPiXVBTX6Cjs2x3i7jMCP8/qg/vE1M:ZW7jmFZ8dPkfTK5286/qg/v2M

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

meroelbob213.ddns.net:1177

Mutex

200f5d46ed258f031642c1880205412e

Attributes
  • reg_key

    200f5d46ed258f031642c1880205412e

  • splitter

    |'|'|

Signatures

  • Njrat family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 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.

  • Suspicious use of AdjustPrivilegeToken 27 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6bff62f418c98855248ac7e0c87bbd892a7ad17aa03676804196daf31dd04f6d.exe
    "C:\Users\Admin\AppData\Local\Temp\6bff62f418c98855248ac7e0c87bbd892a7ad17aa03676804196daf31dd04f6d.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1596
    • C:\Users\Admin\AppData\Roaming\server.exe
      "C:\Users\Admin\AppData\Roaming\server.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2660
      • C:\Windows\SYSTEM32\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        PID:4104

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\server.exe

    Filesize

    30KB

    MD5

    19de48e4e81f875006c35199f29f0f11

    SHA1

    9c49296219e43eb7ee1cbe278b3eb57939b15b59

    SHA256

    6bff62f418c98855248ac7e0c87bbd892a7ad17aa03676804196daf31dd04f6d

    SHA512

    57555951d496e1e8fbd9e6ae0f7b76630a2d61d665ce19da1a89c330d4cc3fea7bbd9f91f88e38eb93e62a6b11f221844873f6d0af751f940fff9aecad487a7b

  • memory/1596-0-0x00007FFD41BF3000-0x00007FFD41BF5000-memory.dmp

    Filesize

    8KB

  • memory/1596-1-0x0000000000B00000-0x0000000000B0E000-memory.dmp

    Filesize

    56KB

  • memory/1596-2-0x00000000012B0000-0x00000000012BE000-memory.dmp

    Filesize

    56KB

  • memory/1596-3-0x00000000012C0000-0x00000000012C8000-memory.dmp

    Filesize

    32KB

  • memory/1596-4-0x00000000012D0000-0x00000000012DC000-memory.dmp

    Filesize

    48KB

  • memory/1596-5-0x00007FFD41BF0000-0x00007FFD426B1000-memory.dmp

    Filesize

    10.8MB

  • memory/1596-19-0x00007FFD41BF0000-0x00007FFD426B1000-memory.dmp

    Filesize

    10.8MB

  • memory/2660-18-0x00007FFD41BF0000-0x00007FFD426B1000-memory.dmp

    Filesize

    10.8MB

  • memory/2660-20-0x00007FFD41BF0000-0x00007FFD426B1000-memory.dmp

    Filesize

    10.8MB

  • memory/2660-21-0x00007FFD41BF0000-0x00007FFD426B1000-memory.dmp

    Filesize

    10.8MB

  • memory/2660-22-0x00007FFD41BF0000-0x00007FFD426B1000-memory.dmp

    Filesize

    10.8MB