Analysis

  • max time kernel
    1804s
  • max time network
    1794s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    20-11-2020 14:34

General

  • Target

    2c01b007729230c415420ad641ad92eb.exe

Malware Config

Signatures

  • NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

  • Executes dropped EXE ⋅ 2 IoCs
  • Adds Run key to start application ⋅ 2 TTPs 4 IoCs
  • Suspicious use of SetThreadContext ⋅ 2 IoCs
  • Enumerates physical storage devices ⋅ 1 TTPs

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

  • Program crash ⋅ 1 IoCs
  • Suspicious behavior: EnumeratesProcesses ⋅ 64 IoCs
  • Suspicious use of WriteProcessMemory ⋅ 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2c01b007729230c415420ad641ad92eb.exe
    "C:\Users\Admin\AppData\Local\Temp\2c01b007729230c415420ad641ad92eb.exe"
    Suspicious use of WriteProcessMemory
    PID:640
    • C:\Users\Admin\AppData\Roaming\wou\odm.exe
      "C:\Users\Admin\AppData\Roaming\wou\odm.exe" kja-pex
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:3652
      • C:\Users\Admin\AppData\Roaming\wou\odm.exe
        C:\Users\Admin\AppData\Roaming\wou\odm.exe C:\Users\Admin\AppData\Roaming\wou\CMWLB
        Executes dropped EXE
        Adds Run key to start application
        Suspicious use of SetThreadContext
        Suspicious use of WriteProcessMemory
        PID:728
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
          "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"
          PID:3876
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 3876 -s 88
            Program crash
            PID:4076
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
          C:\Users\Admin\AppData\Roaming\wou\CMWLB
          Adds Run key to start application
          Suspicious behavior: EnumeratesProcesses
          PID:3968

Network

MITRE ATT&CK Matrix

Collection

    Command and Control

      Credential Access

        Defense Evasion

        Execution

          Exfiltration

            Impact

              Initial Access

                Lateral Movement

                  Privilege Escalation

                    Replay Monitor

                    00:00 00:00

                    Downloads

                    • C:\Users\Admin\AppData\Roaming\wou\CMWLB
                    • C:\Users\Admin\AppData\Roaming\wou\kja-pex
                    • C:\Users\Admin\AppData\Roaming\wou\odm.exe
                    • C:\Users\Admin\AppData\Roaming\wou\odm.exe
                    • C:\Users\Admin\AppData\Roaming\wou\odm.exe
                    • C:\Users\Admin\AppData\Roaming\wou\rid.ico
                    • C:\Users\Admin\AppData\Roaming\wou\spd
                    • memory/728-11-0x00000000745E0000-0x0000000074673000-memory.dmp
                    • memory/728-9-0x0000000000000000-mapping.dmp
                    • memory/3652-2-0x0000000000000000-mapping.dmp
                    • memory/3652-5-0x00000000745E0000-0x0000000074673000-memory.dmp
                    • memory/3876-14-0x000000000047EAEE-mapping.dmp
                    • memory/3968-16-0x0000000000830000-0x00000000008FC000-memory.dmp
                    • memory/3968-17-0x00000000008464E1-mapping.dmp
                    • memory/3968-18-0x0000000000830000-0x00000000008FC000-memory.dmp
                    • memory/4076-15-0x00000000041D0000-0x00000000041D1000-memory.dmp