Analysis

  • max time kernel
    119s
  • max time network
    116s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-09-2024 07:15

General

  • Target

    ad21777c9591c33b563a53115f9db9461899805dfe9c73a690463074fa9f12cfN.exe

  • Size

    128KB

  • MD5

    13c2a0a9fbc1649da8c50ce26b292440

  • SHA1

    958b633948884bebdaaec097495954ea181b5702

  • SHA256

    ad21777c9591c33b563a53115f9db9461899805dfe9c73a690463074fa9f12cf

  • SHA512

    efa1527c3c14934124299cea35f6b7822c2cf4ec04d8872b275f4e68370618c6323095df58a403cbd4d61866f8f8c7997da13ef42ab40f7e1caf8b63c5254648

  • SSDEEP

    3072:H42ScHsJXC/Uij87CW70PX9akYAMTxLkwJgt1aedys9jjYLde:Y2SdcJDak9YxLVgueXx

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

VIP@DUMP

C2

volkatv500.sytes.net:999

Mutex

e0bb29bc288c4cac846ed6aff410e0c6

Attributes
  • reg_key

    e0bb29bc288c4cac846ed6aff410e0c6

  • splitter

    |'|'|

Signatures

  • 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.

  • Drops startup file 2 IoCs
  • 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\ad21777c9591c33b563a53115f9db9461899805dfe9c73a690463074fa9f12cfN.exe
    "C:\Users\Admin\AppData\Local\Temp\ad21777c9591c33b563a53115f9db9461899805dfe9c73a690463074fa9f12cfN.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3828
    • C:\Users\Admin\AppData\Roaming\winhelp.bat
      "C:\Users\Admin\AppData\Roaming\winhelp.bat"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3952
      • C:\Windows\SYSTEM32\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\winhelp.bat" "winhelp.bat" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        PID:2820

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\winhelp.bat

    Filesize

    128KB

    MD5

    13c2a0a9fbc1649da8c50ce26b292440

    SHA1

    958b633948884bebdaaec097495954ea181b5702

    SHA256

    ad21777c9591c33b563a53115f9db9461899805dfe9c73a690463074fa9f12cf

    SHA512

    efa1527c3c14934124299cea35f6b7822c2cf4ec04d8872b275f4e68370618c6323095df58a403cbd4d61866f8f8c7997da13ef42ab40f7e1caf8b63c5254648

  • memory/3828-6-0x000000001C820000-0x000000001C8C6000-memory.dmp

    Filesize

    664KB

  • memory/3828-2-0x000000001C2A0000-0x000000001C76E000-memory.dmp

    Filesize

    4.8MB

  • memory/3828-3-0x000000001BCC0000-0x000000001BD5C000-memory.dmp

    Filesize

    624KB

  • memory/3828-4-0x00007FFAD5950000-0x00007FFAD62F1000-memory.dmp

    Filesize

    9.6MB

  • memory/3828-5-0x00000000014A0000-0x00000000014AC000-memory.dmp

    Filesize

    48KB

  • memory/3828-0-0x00007FFAD5C05000-0x00007FFAD5C06000-memory.dmp

    Filesize

    4KB

  • memory/3828-1-0x00007FFAD5950000-0x00007FFAD62F1000-memory.dmp

    Filesize

    9.6MB

  • memory/3828-13-0x00007FFAD5950000-0x00007FFAD62F1000-memory.dmp

    Filesize

    9.6MB

  • memory/3952-14-0x00007FFAD5950000-0x00007FFAD62F1000-memory.dmp

    Filesize

    9.6MB

  • memory/3952-15-0x00007FFAD5950000-0x00007FFAD62F1000-memory.dmp

    Filesize

    9.6MB

  • memory/3952-16-0x00007FFAD5950000-0x00007FFAD62F1000-memory.dmp

    Filesize

    9.6MB

  • memory/3952-18-0x0000000000AA0000-0x0000000000AA8000-memory.dmp

    Filesize

    32KB

  • memory/3952-19-0x00007FFAD5950000-0x00007FFAD62F1000-memory.dmp

    Filesize

    9.6MB