Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-05-2024 15:52

General

  • Target

    virussign.com_84875b4283fa59685172a0ea7f7e7ac0.exe

  • Size

    884KB

  • MD5

    84875b4283fa59685172a0ea7f7e7ac0

  • SHA1

    1bf08442e7e3284e529d4f30bd8b5559d054e4d7

  • SHA256

    b51028907f6b360042638f29505aa13b31e491b95ed02372f6a737a9efdc8e15

  • SHA512

    343301e074406841a6082754dc20b13f94059b89bf4a2099ac281787116ff3bbebc58f0d67c84788e19e28f662dd63ebdf70bca8d9164b9e2e450567c5877bcc

  • SSDEEP

    24576:8u6J33O0c+JY5UZ+XC0kGsoTacbl6u2idWYd:mu0c++OCvkGsEacJ67bYd

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

14 mai generateur xbox

C2

89.94.35.57:1604

Mutex

ef05e501c2e286164abf5fcaa961559f

Attributes
  • reg_key

    ef05e501c2e286164abf5fcaa961559f

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\virussign.com_84875b4283fa59685172a0ea7f7e7ac0.exe
    "C:\Users\Admin\AppData\Local\Temp\virussign.com_84875b4283fa59685172a0ea7f7e7ac0.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4684
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4192
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe" "RegAsm.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:3020

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4192-3-0x00000000001C0000-0x00000000001CC000-memory.dmp

    Filesize

    48KB

  • memory/4192-9-0x0000000073EE2000-0x0000000073EE3000-memory.dmp

    Filesize

    4KB

  • memory/4192-10-0x0000000073EE0000-0x0000000074491000-memory.dmp

    Filesize

    5.7MB

  • memory/4192-11-0x0000000073EE0000-0x0000000074491000-memory.dmp

    Filesize

    5.7MB

  • memory/4192-13-0x0000000073EE2000-0x0000000073EE3000-memory.dmp

    Filesize

    4KB

  • memory/4192-14-0x0000000073EE0000-0x0000000074491000-memory.dmp

    Filesize

    5.7MB

  • memory/4684-0-0x0000000000430000-0x0000000000513000-memory.dmp

    Filesize

    908KB

  • memory/4684-8-0x0000000001D60000-0x0000000001D61000-memory.dmp

    Filesize

    4KB

  • memory/4684-12-0x0000000001D60000-0x0000000001D61000-memory.dmp

    Filesize

    4KB