Analysis

  • max time kernel
    150s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    26/01/2024, 23:24

General

  • Target

    78a9c32a4f8e84a1fac417b3621be3b4.exe

  • Size

    402KB

  • MD5

    78a9c32a4f8e84a1fac417b3621be3b4

  • SHA1

    8503b246c13b9367fe086df8b3a902d03f131057

  • SHA256

    c48f8cf91800215da1f4f9f6bea83f59ad2ba28c66b8bee2d69c80bdbd4d9f11

  • SHA512

    121f9f0a1b36d25a07b86c7a573ebac088826514468959bab878a1ed02a865c24a7a051a840a2a2c096d67ff79ddc1681a07f08a2d0407bb09809e9e50818f9d

  • SSDEEP

    6144:MmaKVBGmE84IMNv55giU0pKiFYHxfx15RvOagakZBxkTN2gmeGcFnVQb/DAYbDgE:lSmLAuEY71fviagATFmebVQDcYcY

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

pdf

C2

hhhmach.ddns.net:1177

Mutex

5cd8f17f4086744065eb0992a09e05a2

Attributes
  • reg_key

    5cd8f17f4086744065eb0992a09e05a2

  • 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 2 IoCs
  • Loads dropped DLL 2 IoCs
  • UPX packed file 2 IoCs

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

  • 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).

  • Suspicious behavior: EnumeratesProcesses 31 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\78a9c32a4f8e84a1fac417b3621be3b4.exe
    "C:\Users\Admin\AppData\Local\Temp\78a9c32a4f8e84a1fac417b3621be3b4.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1032
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c test.exe
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2824
      • C:\Users\Admin\AppData\Local\Temp\test.exe
        test.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1052
        • C:\Users\Admin\AppData\Local\Temp\Trojan.exe
          "C:\Users\Admin\AppData\Local\Temp\Trojan.exe"
          4⤵
          • Drops startup file
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2788
          • C:\Windows\SysWOW64\netsh.exe
            netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Trojan.exe" "Trojan.exe" ENABLE
            5⤵
            • Modifies Windows Firewall
            PID:2536

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\test.exe

          Filesize

          78KB

          MD5

          42c5854aa0709d8bf6c28ea82c67b9a5

          SHA1

          124ea473f0572009de85a4a46f361109f4fae7d6

          SHA256

          71e1add662041fee9ff0ddf0139154cf006538559af45f34047aac91efb1b8eb

          SHA512

          c0f4412f2237138b5b66ecc285d7f44bacd67ae23feb0a55561cd4f7850ee6b0fd1b1dac3d2725ed4932aaf155b0fbda284a69b07594789bdb4cbcf0f499d95a

        • memory/1032-0-0x0000000000400000-0x00000000004FB000-memory.dmp

          Filesize

          1004KB

        • memory/1032-18-0x0000000000400000-0x00000000004FB000-memory.dmp

          Filesize

          1004KB

        • memory/1052-6-0x0000000074B50000-0x00000000750FB000-memory.dmp

          Filesize

          5.7MB

        • memory/1052-7-0x00000000003F0000-0x0000000000430000-memory.dmp

          Filesize

          256KB

        • memory/1052-16-0x0000000074B50000-0x00000000750FB000-memory.dmp

          Filesize

          5.7MB

        • memory/1052-5-0x0000000074B50000-0x00000000750FB000-memory.dmp

          Filesize

          5.7MB

        • memory/2788-17-0x0000000000380000-0x00000000003C0000-memory.dmp

          Filesize

          256KB

        • memory/2788-15-0x0000000074B50000-0x00000000750FB000-memory.dmp

          Filesize

          5.7MB

        • memory/2788-19-0x0000000074B50000-0x00000000750FB000-memory.dmp

          Filesize

          5.7MB

        • memory/2788-21-0x0000000074B50000-0x00000000750FB000-memory.dmp

          Filesize

          5.7MB

        • memory/2788-22-0x0000000000380000-0x00000000003C0000-memory.dmp

          Filesize

          256KB

        • memory/2788-23-0x0000000000380000-0x00000000003C0000-memory.dmp

          Filesize

          256KB