Analysis

  • max time kernel
    151s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/04/2024, 22:27

General

  • Target
    664c0effa7bb5dc6c5c20c90b9b9ab1553bd57d7f2a4b6dce2fed74728312305.exe
  • Size 425KB
  • Sample240429-2dkc7sdc5s
  • SHA256 664c0effa7bb5dc6c5c20c90b9b9ab1553bd57d7f2a4b6dce2fed74728312305
  • MD5 SHA1 SHA512 SSDEEP

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.

  • UPX dump on OEP (original entry point) 17 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • UPX packed file 17 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • AutoIT Executable 16 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 33 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\664c0effa7bb5dc6c5c20c90b9b9ab1553bd57d7f2a4b6dce2fed74728312305.exe
    "C:\Users\Admin\AppData\Local\Temp\664c0effa7bb5dc6c5c20c90b9b9ab1553bd57d7f2a4b6dce2fed74728312305.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:3588
    • 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:4648
      • 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:3960
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1344 --field-trial-handle=2276,i,11674642242468042059,14711253743544118298,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:1100

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/3588-14-0x0000000000370000-0x000000000046F000-memory.dmp

          memory/3588-27-0x0000000000370000-0x000000000046F000-memory.dmp

          memory/3588-30-0x0000000000370000-0x000000000046F000-memory.dmp

          memory/3588-9-0x0000000000370000-0x000000000046F000-memory.dmp

          memory/3588-29-0x0000000000370000-0x000000000046F000-memory.dmp

          memory/3588-28-0x0000000000370000-0x000000000046F000-memory.dmp

          memory/3588-0-0x0000000000370000-0x000000000046F000-memory.dmp

          memory/3588-13-0x0000000000370000-0x000000000046F000-memory.dmp

          memory/3588-3-0x0000000003CE0000-0x0000000003CE1000-memory.dmp

          memory/3588-24-0x0000000000370000-0x000000000046F000-memory.dmp

          memory/3588-15-0x0000000000370000-0x000000000046F000-memory.dmp

          memory/3588-26-0x0000000000370000-0x000000000046F000-memory.dmp

          memory/3588-25-0x0000000000370000-0x000000000046F000-memory.dmp

          memory/3588-19-0x0000000000370000-0x000000000046F000-memory.dmp

          memory/3588-20-0x0000000000370000-0x000000000046F000-memory.dmp

          memory/3588-21-0x0000000000370000-0x000000000046F000-memory.dmp

          memory/3588-22-0x0000000000370000-0x000000000046F000-memory.dmp

          memory/3588-23-0x0000000000370000-0x000000000046F000-memory.dmp

          memory/4648-11-0x0000000073F80000-0x0000000074531000-memory.dmp

          memory/4648-18-0x00000000026A0000-0x00000000026B0000-memory.dmp

          memory/4648-17-0x0000000073F80000-0x0000000074531000-memory.dmp

          memory/4648-16-0x0000000073F80000-0x0000000074531000-memory.dmp

          memory/4648-12-0x00000000026A0000-0x00000000026B0000-memory.dmp

          memory/4648-10-0x0000000073F80000-0x0000000074531000-memory.dmp

          memory/4648-4-0x0000000000400000-0x000000000040C000-memory.dmp