Analysis

  • max time kernel
    150s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/04/2024, 20:39

General

  • Target

    4389f797ce290f2b270cdb341e519ceab66f40475178cd667663d82d4af3adbf.exe

  • Size

    425KB

  • MD5

    a64155197e86d698360b4d89aeb9b862

  • SHA1

    445055a3e79c38765833045dceaae7b9a760028d

  • SHA256

    4389f797ce290f2b270cdb341e519ceab66f40475178cd667663d82d4af3adbf

  • SHA512

    f8baf13f0d3615896d970b4fe8baa0d8aff4d0975963d8937d2ffd96e66e5a26391f4b6b21bec4cff4f2db9602ae465f635694ef80a47485817ea6f5852a4f81

  • SSDEEP

    12288:WquErHF6xC9D6DmR1J98w4oknqO/CyQftQYqYbLmKT:brl6kD68JmlokQfttqY2KT

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) 16 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • UPX packed file 16 IoCs

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

  • AutoIT Executable 15 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\4389f797ce290f2b270cdb341e519ceab66f40475178cd667663d82d4af3adbf.exe
    "C:\Users\Admin\AppData\Local\Temp\4389f797ce290f2b270cdb341e519ceab66f40475178cd667663d82d4af3adbf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4532
    • 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:2052
      • 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:4272
  • 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 --field-trial-handle=4148,i,10311142765129381054,10604297278945507215,262144 --variations-seed-version --mojo-platform-channel-handle=3924 /prefetch:8
    1⤵
      PID:4056

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/2052-16-0x00000000739F0000-0x0000000073FA1000-memory.dmp

            Filesize

            5.7MB

          • memory/2052-18-0x0000000003000000-0x0000000003010000-memory.dmp

            Filesize

            64KB

          • memory/2052-4-0x0000000000400000-0x000000000040C000-memory.dmp

            Filesize

            48KB

          • memory/2052-9-0x00000000739F0000-0x0000000073FA1000-memory.dmp

            Filesize

            5.7MB

          • memory/2052-10-0x00000000739F0000-0x0000000073FA1000-memory.dmp

            Filesize

            5.7MB

          • memory/2052-11-0x0000000003000000-0x0000000003010000-memory.dmp

            Filesize

            64KB

          • memory/2052-17-0x00000000739F0000-0x0000000073FA1000-memory.dmp

            Filesize

            5.7MB

          • memory/4532-12-0x00000000001A0000-0x000000000029F000-memory.dmp

            Filesize

            1020KB

          • memory/4532-22-0x00000000001A0000-0x000000000029F000-memory.dmp

            Filesize

            1020KB

          • memory/4532-15-0x0000000004170000-0x0000000004171000-memory.dmp

            Filesize

            4KB

          • memory/4532-13-0x00000000001A0000-0x000000000029F000-memory.dmp

            Filesize

            1020KB

          • memory/4532-0-0x00000000001A0000-0x000000000029F000-memory.dmp

            Filesize

            1020KB

          • memory/4532-3-0x0000000004170000-0x0000000004171000-memory.dmp

            Filesize

            4KB

          • memory/4532-19-0x00000000001A0000-0x000000000029F000-memory.dmp

            Filesize

            1020KB

          • memory/4532-20-0x00000000001A0000-0x000000000029F000-memory.dmp

            Filesize

            1020KB

          • memory/4532-21-0x00000000001A0000-0x000000000029F000-memory.dmp

            Filesize

            1020KB

          • memory/4532-14-0x00000000001A0000-0x000000000029F000-memory.dmp

            Filesize

            1020KB

          • memory/4532-23-0x00000000001A0000-0x000000000029F000-memory.dmp

            Filesize

            1020KB

          • memory/4532-24-0x00000000001A0000-0x000000000029F000-memory.dmp

            Filesize

            1020KB

          • memory/4532-25-0x00000000001A0000-0x000000000029F000-memory.dmp

            Filesize

            1020KB

          • memory/4532-26-0x00000000001A0000-0x000000000029F000-memory.dmp

            Filesize

            1020KB

          • memory/4532-27-0x00000000001A0000-0x000000000029F000-memory.dmp

            Filesize

            1020KB

          • memory/4532-28-0x00000000001A0000-0x000000000029F000-memory.dmp

            Filesize

            1020KB

          • memory/4532-29-0x00000000001A0000-0x000000000029F000-memory.dmp

            Filesize

            1020KB

          • memory/4532-30-0x00000000001A0000-0x000000000029F000-memory.dmp

            Filesize

            1020KB