Analysis

  • max time kernel
    97s
  • max time network
    102s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    15/11/2022, 18:09

General

  • Target
    SecuriteInfo.com.Variant.Barys.51933.17281.33.exe
  • Size 791KB
  • Sample221115-wrfdhsfb59
  • SHA256 1cc44e0f214cbf72c836dcbd1b1e67ad574bba62873f974432ee076072bf42cc
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • netwire

C2
  • 79.134.225.121:2210

Attributes
  • activex_autorun

    false

  • copy_executable

    false

  • delete_original

    false

  • host_id

    HostId-%Rand%

  • install_path

    %AppData%\Install\Host.exe

  • lock_executable

    false

  • offline_keylogger

    false

  • password

    Elibee88

  • registry_autorun

    false

  • use_mutex

    false

Signatures

  • NetWire RAT payload 11 IoCs
  • Netwire

    Netwire is a RAT with main functionalities focused password stealing and keylogging, but also includes remote control capabilities as well.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 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.

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 34 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 46 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Barys.51933.17281.33.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Barys.51933.17281.33.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1048
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\URdnAiSIrsI.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1688
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\URdnAiSIrsI" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBC5E.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:884
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Barys.51933.17281.33.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Barys.51933.17281.33.exe"
      2⤵
        PID:816
      • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Barys.51933.17281.33.exe
        "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Barys.51933.17281.33.exe"
        2⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1732
        • C:\Users\Admin\AppData\Roaming\Install\Host.exe
          "C:\Users\Admin\AppData\Roaming\Install\Host.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1904
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\URdnAiSIrsI.exe"
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1508
          • C:\Windows\SysWOW64\schtasks.exe
            "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\URdnAiSIrsI" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7A01.tmp"
            4⤵
            • Creates scheduled task(s)
            PID:2016
          • C:\Users\Admin\AppData\Roaming\Install\Host.exe
            "C:\Users\Admin\AppData\Roaming\Install\Host.exe"
            4⤵
            • Executes dropped EXE
            PID:1936
    • C:\Windows\system32\wbem\WmiApSrv.exe
      C:\Windows\system32\wbem\WmiApSrv.exe
      1⤵
        PID:1580

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            tmp7A01.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\tmp7A01.tmp
            • Size 1KB
            • SHA256 64ed4e987cc293ec1c4f9035687bb7d0a57c082fa6426e901e48aaa111d355c0
            • MD5 SHA1 SHA512

            tmpBC5E.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\tmpBC5E.tmp
            • Size 1KB
            • SHA256 64ed4e987cc293ec1c4f9035687bb7d0a57c082fa6426e901e48aaa111d355c0
            • MD5 SHA1 SHA512

            Host.exe

            • Path C:\Users\Admin\AppData\Roaming\Install\Host.exe
            • Size 791KB
            • SHA256 1cc44e0f214cbf72c836dcbd1b1e67ad574bba62873f974432ee076072bf42cc
            • MD5 SHA1 SHA512 SSDEEP

            Host.exe

            • Path C:\Users\Admin\AppData\Roaming\Install\Host.exe
            • Size 791KB
            • SHA256 1cc44e0f214cbf72c836dcbd1b1e67ad574bba62873f974432ee076072bf42cc
            • MD5 SHA1 SHA512 SSDEEP

            Host.exe

            • Path C:\Users\Admin\AppData\Roaming\Install\Host.exe
            • Size 791KB
            • SHA256 1cc44e0f214cbf72c836dcbd1b1e67ad574bba62873f974432ee076072bf42cc
            • MD5 SHA1 SHA512 SSDEEP

            d93f411851d7c929.customDestinations-ms

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
            • Size 7KB
            • SHA256 bb0cc4b396183f7057ae63ff5a5968a7ba79ce44fdbb10bb3791c2b745235003
            • MD5 SHA1 SHA512 SSDEEP

            Host.exe

            • Path \Users\Admin\AppData\Roaming\Install\Host.exe
            • Size 791KB
            • SHA256 1cc44e0f214cbf72c836dcbd1b1e67ad574bba62873f974432ee076072bf42cc
            • MD5 SHA1 SHA512 SSDEEP

            Host.exe

            • Path \Users\Admin\AppData\Roaming\Install\Host.exe
            • Size 791KB
            • SHA256 1cc44e0f214cbf72c836dcbd1b1e67ad574bba62873f974432ee076072bf42cc
            • MD5 SHA1 SHA512 SSDEEP

            memory/1048-57-0x0000000000380000-0x000000000038C000-memory.dmp

            memory/1048-65-0x0000000001090000-0x00000000010DA000-memory.dmp

            memory/1048-54-0x00000000012B0000-0x000000000137C000-memory.dmp

            memory/1048-58-0x0000000007E60000-0x0000000007EE4000-memory.dmp

            memory/1048-56-0x00000000003C0000-0x00000000003D8000-memory.dmp

            memory/1048-55-0x00000000759F1000-0x00000000759F3000-memory.dmp

            memory/1508-93-0x000000006ED80000-0x000000006F32B000-memory.dmp

            memory/1688-64-0x000000006ED90000-0x000000006F33B000-memory.dmp

            memory/1688-61-0x000000006ED90000-0x000000006F33B000-memory.dmp

            memory/1732-76-0x0000000000400000-0x000000000044F000-memory.dmp

            memory/1732-71-0x0000000000400000-0x000000000044F000-memory.dmp

            memory/1732-80-0x0000000000400000-0x000000000044F000-memory.dmp

            memory/1732-66-0x0000000000400000-0x000000000044F000-memory.dmp

            memory/1732-86-0x0000000000400000-0x000000000044F000-memory.dmp

            memory/1732-74-0x0000000000400000-0x000000000044F000-memory.dmp

            memory/1732-67-0x0000000000400000-0x000000000044F000-memory.dmp

            memory/1732-73-0x0000000000400000-0x000000000044F000-memory.dmp

            memory/1732-81-0x0000000000400000-0x000000000044F000-memory.dmp

            memory/1732-69-0x0000000000400000-0x000000000044F000-memory.dmp

            memory/1904-88-0x0000000000F10000-0x0000000000FDC000-memory.dmp

            memory/1936-111-0x0000000000400000-0x000000000044F000-memory.dmp

            memory/1936-112-0x0000000000400000-0x000000000044F000-memory.dmp