Analysis

  • max time kernel
    151s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    14/10/2022, 14:47

General

  • Target
    Process Lasso 11.1.1.26 #soft8 病毒 0 (111.10.14)/App/ProcessLasso/pl.cmd
  • Size 77B
  • Sample221014-r5vm5sdfe7
  • SHA256 9af8add66b2bb4a0252b65e0f13238055b601d689e8d29455d5b2c87f901fd7b
  • MD5 SHA1 SHA512
Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 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 6 IoCs

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

  • Suspicious behavior: CmdExeWriteProcessMemorySpam 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 24 IoCs
  • Suspicious use of FindShellTrayWindow 55 IoCs
  • Suspicious use of SendNotifyMessage 55 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c "C:\Users\Admin\AppData\Local\Temp\Process Lasso 11.1.1.26 #soft8 病毒 0 (111.10.14)\App\ProcessLasso\pl.cmd"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1808
    • C:\Users\Admin\AppData\Local\Temp\Process Lasso 11.1.1.26 #soft8 病毒 0 (111.10.14)\App\ProcessLasso\InstallHelper.exe
      InstallHelper.exe /terminate
      2⤵
      • Checks processor information in registry
      • Suspicious behavior: CmdExeWriteProcessMemorySpam
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:900
      • C:\Users\Admin\AppData\Local\Temp\Process Lasso 11.1.1.26 #soft8 病毒 0 (111.10.14)\App\ProcessLasso\bitsumms.exe
        "C:\Users\Admin\AppData\Local\Temp\Process Lasso 11.1.1.26 #soft8 病毒 0 (111.10.14)\App\ProcessLasso\bitsumms.exe" /name:ProcessGovernor /stop
        3⤵
          PID:2024
      • C:\Users\Admin\AppData\Local\Temp\Process Lasso 11.1.1.26 #soft8 病毒 0 (111.10.14)\App\ProcessLasso\ProcessLassoLauncher.exe
        ProcessLassoLauncher.exe /showwindow
        2⤵
        • Loads dropped DLL
        • Suspicious behavior: CmdExeWriteProcessMemorySpam
        • Suspicious use of WriteProcessMemory
        PID:1300
        • C:\Users\Admin\AppData\Local\Temp\Process Lasso 11.1.1.26 #soft8 病毒 0 (111.10.14)\App\ProcessLasso\ProcessLasso.exe
          "C:\Users\Admin\AppData\Local\Temp\Process Lasso 11.1.1.26 #soft8 病毒 0 (111.10.14)\App\ProcessLasso\ProcessLasso.exe" "ProcessLassoLauncher.exe" "/showwindow"
          3⤵
          • Executes dropped EXE
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          • Suspicious use of WriteProcessMemory
          PID:1020
          • C:\Users\Admin\AppData\Local\Temp\Process Lasso 11.1.1.26 #soft8 病毒 0 (111.10.14)\App\ProcessLasso\processgovernor.exe
            "C:\Users\Admin\AppData\Local\Temp\Process Lasso 11.1.1.26 #soft8 病毒 0 (111.10.14)\App\ProcessLasso\processgovernor.exe"
            4⤵
            • Checks processor information in registry
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1396

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          prolasso.ini

          • Path C:\Users\Admin\AppData\Local\ProcessLasso\config\prolasso.ini
          • Size 7KB
          • SHA256 cc92b1ffc62962e1e8267a47df08f5817df148be90a20e984e87ccabf67b2ca9
          • MD5 SHA1 SHA512 SSDEEP

          processlasso.log

          • Path C:\Users\Admin\AppData\Local\ProcessLasso\logs\processlasso.log
          • Size 1KB
          • SHA256 48149f08f099196024737c21f879554205868e362f9ff5e0479e354c6122bfa1
          • MD5 SHA1 SHA512

          ProcessLasso.exe

          • Path C:\Users\Admin\AppData\Local\Temp\Process Lasso 11.1.1.26 #soft8 病毒 0 (111.10.14)\App\ProcessLasso\ProcessLasso.exe
          • Size 1.5MB
          • SHA256 b10f6f81b153bce13fe126e23989aec9b632d8b44699b29797230b00b22c2bf6
          • MD5 SHA1 SHA512 SSDEEP

          ProcessLasso.exe

          • Path \Users\Admin\AppData\Local\Temp\Process Lasso 11.1.1.26 #soft8 病毒 0 (111.10.14)\App\ProcessLasso\ProcessLasso.exe
          • Size 1.5MB
          • SHA256 b10f6f81b153bce13fe126e23989aec9b632d8b44699b29797230b00b22c2bf6
          • MD5 SHA1 SHA512 SSDEEP

          ProcessLasso.exe

          • Path \Users\Admin\AppData\Local\Temp\Process Lasso 11.1.1.26 #soft8 病毒 0 (111.10.14)\App\ProcessLasso\ProcessLasso.exe
          • Size 1.5MB
          • SHA256 b10f6f81b153bce13fe126e23989aec9b632d8b44699b29797230b00b22c2bf6
          • MD5 SHA1 SHA512 SSDEEP

          ProcessLasso.exe

          • Path \Users\Admin\AppData\Local\Temp\Process Lasso 11.1.1.26 #soft8 病毒 0 (111.10.14)\App\ProcessLasso\ProcessLasso.exe
          • Size 1.5MB
          • SHA256 b10f6f81b153bce13fe126e23989aec9b632d8b44699b29797230b00b22c2bf6
          • MD5 SHA1 SHA512 SSDEEP

          ProcessLasso.exe

          • Path \Users\Admin\AppData\Local\Temp\Process Lasso 11.1.1.26 #soft8 病毒 0 (111.10.14)\App\ProcessLasso\ProcessLasso.exe
          • Size 1.5MB
          • SHA256 b10f6f81b153bce13fe126e23989aec9b632d8b44699b29797230b00b22c2bf6
          • MD5 SHA1 SHA512 SSDEEP

          memory/900-55-0x0000000075AC1000-0x0000000075AC3000-memory.dmp