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
    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
  • 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 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ad21777c9591c33b563a53115f9db9461899805dfe9c73a690463074fa9f12cfN.exe
    "C:\Users\Admin\AppData\Local\Temp\ad21777c9591c33b563a53115f9db9461899805dfe9c73a690463074fa9f12cfN.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2532
    • 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:2584
      • 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:2772

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    128KB

    MD5

    13c2a0a9fbc1649da8c50ce26b292440

    SHA1

    958b633948884bebdaaec097495954ea181b5702

    SHA256

    ad21777c9591c33b563a53115f9db9461899805dfe9c73a690463074fa9f12cf

    SHA512

    efa1527c3c14934124299cea35f6b7822c2cf4ec04d8872b275f4e68370618c6323095df58a403cbd4d61866f8f8c7997da13ef42ab40f7e1caf8b63c5254648

  • memory/2532-0-0x000007FEF5CAE000-0x000007FEF5CAF000-memory.dmp

    Filesize

    4KB

  • memory/2532-1-0x000007FEF59F0000-0x000007FEF638D000-memory.dmp

    Filesize

    9.6MB

  • memory/2532-2-0x00000000002B0000-0x00000000002BC000-memory.dmp

    Filesize

    48KB

  • memory/2532-3-0x000007FEF59F0000-0x000007FEF638D000-memory.dmp

    Filesize

    9.6MB

  • memory/2532-9-0x000007FEF59F0000-0x000007FEF638D000-memory.dmp

    Filesize

    9.6MB

  • memory/2584-11-0x000007FEF59F0000-0x000007FEF638D000-memory.dmp

    Filesize

    9.6MB

  • memory/2584-10-0x000007FEF59F0000-0x000007FEF638D000-memory.dmp

    Filesize

    9.6MB

  • memory/2584-13-0x000007FEF59F0000-0x000007FEF638D000-memory.dmp

    Filesize

    9.6MB