Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/07/2023, 00:14

General

  • Target

    0x000900000001414e-64.exe

  • Size

    37KB

  • MD5

    ab01301daa4c65810ffd2eb23b51c74c

  • SHA1

    556963ab12f90cdc52f7654e00ef2b331ac418c6

  • SHA256

    59b3dc90ef07497ef1107f75e40c3961c19f0326e2283f8caa7059fcef5b1a8c

  • SHA512

    fb22b7c830090be9a0150d789ca988e8beab0aac544cf57ce59e7d4ef66a9e548baa37df57ac529dc10c25ac308ac55fbe06abd43978668296d78df0f962ae1b

  • SSDEEP

    384:PrvsiDXT95hL5YyUvlPPnOU4CUBJJrAF+rMRTyN/0L+EcoinblneHQM3epzXzNrj:Tbv5zUvlPzVU7JrM+rMRa8NuNbt

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

lox

C2

structure-tour.at.ply.gg:27475

Mutex

90e01f40b77fe25a11d52d46dae82c17

Attributes
  • reg_key

    90e01f40b77fe25a11d52d46dae82c17

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops autorun.inf file 1 TTPs 5 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0x000900000001414e-64.exe
    "C:\Users\Admin\AppData\Local\Temp\0x000900000001414e-64.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:1228
    • C:\Windows\svh0stt.exe
      "C:\Windows\svh0stt.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops autorun.inf file
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4824
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Windows\svh0stt.exe" "svh0stt.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:1212

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Windows\svh0stt.exe

          Filesize

          37KB

          MD5

          ab01301daa4c65810ffd2eb23b51c74c

          SHA1

          556963ab12f90cdc52f7654e00ef2b331ac418c6

          SHA256

          59b3dc90ef07497ef1107f75e40c3961c19f0326e2283f8caa7059fcef5b1a8c

          SHA512

          fb22b7c830090be9a0150d789ca988e8beab0aac544cf57ce59e7d4ef66a9e548baa37df57ac529dc10c25ac308ac55fbe06abd43978668296d78df0f962ae1b

        • C:\Windows\svh0stt.exe

          Filesize

          37KB

          MD5

          ab01301daa4c65810ffd2eb23b51c74c

          SHA1

          556963ab12f90cdc52f7654e00ef2b331ac418c6

          SHA256

          59b3dc90ef07497ef1107f75e40c3961c19f0326e2283f8caa7059fcef5b1a8c

          SHA512

          fb22b7c830090be9a0150d789ca988e8beab0aac544cf57ce59e7d4ef66a9e548baa37df57ac529dc10c25ac308ac55fbe06abd43978668296d78df0f962ae1b

        • C:\Windows\svh0stt.exe

          Filesize

          37KB

          MD5

          ab01301daa4c65810ffd2eb23b51c74c

          SHA1

          556963ab12f90cdc52f7654e00ef2b331ac418c6

          SHA256

          59b3dc90ef07497ef1107f75e40c3961c19f0326e2283f8caa7059fcef5b1a8c

          SHA512

          fb22b7c830090be9a0150d789ca988e8beab0aac544cf57ce59e7d4ef66a9e548baa37df57ac529dc10c25ac308ac55fbe06abd43978668296d78df0f962ae1b

        • memory/1228-133-0x0000000001210000-0x0000000001220000-memory.dmp

          Filesize

          64KB

        • memory/4824-143-0x0000000000AE0000-0x0000000000AF0000-memory.dmp

          Filesize

          64KB

        • memory/4824-153-0x0000000000AE0000-0x0000000000AF0000-memory.dmp

          Filesize

          64KB