Analysis

  • max time kernel
    47s
  • max time network
    14s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    24/06/2021, 01:17

General

  • Target
    b9d0d135d4feddc5dbda11c5aa4cc586.exe
  • Size 1.6MB
  • Sample210624-e6t6fl1dnx
  • SHA256 06cf7c7c1a2d8f8647c977803466fd5b3a39dded0312fb23575eeacfaeaf07d6
  • MD5 SHA1 SHA512
Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b9d0d135d4feddc5dbda11c5aa4cc586.exe
    "C:\Users\Admin\AppData\Local\Temp\b9d0d135d4feddc5dbda11c5aa4cc586.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1836
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c cmd < Mostra.jar
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:828
      • C:\Windows\SysWOW64\cmd.exe
        cmd
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:2028
        • C:\Windows\SysWOW64\findstr.exe
          findstr /V /R "^MvfbkfITdzmqvzpcDFGyNcZWzrEfTQhrBeBvmkWJSEqlaWEzJGeiLmJdvatoLzZAucnxSMVaJXjocOEvmlFjOyaealZiuNYmEAtXnpBWLKnOjBV$" Hai.jar
          4⤵
            PID:1944
          • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Dir.exe.com
            Dir.exe.com v
            4⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:472
            • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Dir.exe.com
              C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Dir.exe.com v
              5⤵
              • Executes dropped EXE
              • Checks processor information in registry
              PID:1628
          • C:\Windows\SysWOW64\PING.EXE
            ping 127.0.0.1 -n 30
            4⤵
            • Runs ping.exe
            PID:1152

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/1628-78-0x00000000001D0000-0x00000000001D1000-memory.dmp

          memory/1836-59-0x0000000074D91000-0x0000000074D93000-memory.dmp