Analysis

  • max time kernel
    71s
  • max time network
    135s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    12-06-2022 07:03

General

  • Target

    21e82b438e9372b136719ebb26d2c8024e2e80d866b144ed0d509a7c9db67a64.exe

  • Size

    218KB

  • MD5

    4ced579c892ddde3858eaaca641759bb

  • SHA1

    655346c704eb41422328998fab56691f352dec4d

  • SHA256

    21e82b438e9372b136719ebb26d2c8024e2e80d866b144ed0d509a7c9db67a64

  • SHA512

    611ef0f7ba245d9338ffa1e2ed2e5ac09b610ee0c8d4dea31b64281dc144a67240635e9cdeb493332f9468715f49a4e10e362fabf5a80cb6c65bd16078b4e7da

Score
10/10

Malware Config

Signatures

  • suricata: ET MALWARE Possible Malicious Macro DL EXE Feb 2016

    suricata: ET MALWARE Possible Malicious Macro DL EXE Feb 2016

  • Blocklisted process makes network request 8 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Launches sc.exe 2 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry key 1 TTPs 4 IoCs
  • Modifies system certificate store 2 TTPs 9 IoCs
  • Runs net.exe
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\21e82b438e9372b136719ebb26d2c8024e2e80d866b144ed0d509a7c9db67a64.exe
    "C:\Users\Admin\AppData\Local\Temp\21e82b438e9372b136719ebb26d2c8024e2e80d866b144ed0d509a7c9db67a64.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1464
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\RarSFX0\svscrypte.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1540
      • C:\Windows\SysWOW64\reg.exe
        REG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v Intel(R) /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\svscrypte.vbs" /f
        3⤵
        • Adds Run key to start application
        • Modifies registry key
        PID:1000
      • C:\Windows\SysWOW64\reg.exe
        REG ADD HKLM\Software\Microsoft\Windows\CurrentVersion\Run /v Intel(R) /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\svscrypte.vbs" /f
        3⤵
        • Adds Run key to start application
        • Modifies registry key
        PID:1784
      • C:\Windows\SysWOW64\reg.exe
        REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Policiees\Explorer\Run /v Intel(R) /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\svscrypte.vbs" /f
        3⤵
        • Modifies registry key
        PID:556
      • C:\Windows\SysWOW64\reg.exe
        REG ADD HKLM\Software\Microsoft\Windows\CurrentVersion\Policiees\Explorer\Run /v Intel(R) /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\svscrypte.vbs" /f
        3⤵
        • Modifies registry key
        PID:1756
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SystemRestore" /v DisableSR /t REG_DWORD /d 1 /f
        3⤵
          PID:300
        • C:\Windows\SysWOW64\sc.exe
          sc config srservice start= disabled
          3⤵
          • Launches sc.exe
          PID:760
        • C:\Windows\SysWOW64\sc.exe
          sc config srservice start= Auto
          3⤵
          • Launches sc.exe
          PID:1064
        • C:\Windows\SysWOW64\net.exe
          net stop srservice
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1744
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop srservice
            4⤵
              PID:1632
        • C:\Windows\SysWOW64\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\RarSFX0\svscrypte.vbs"
          2⤵
          • Blocklisted process makes network request
          • Modifies system certificate store
          PID:960

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\svscrypte.bat

        Filesize

        1KB

        MD5

        25b68c107acc1a507d81e0ffc53a60c5

        SHA1

        79cf6f1a2e0175dc2a84f55c02b03958dd2ba074

        SHA256

        51cde711442e057adf08e60554e4e1db99dae431216f772e61a3fc544d9ed2fd

        SHA512

        d312295b41cc0fb53f9281c8afea49fa9eb9e2c7bc1075a679626cf6e343b6d306523a2a1d8473b7e89601aea1faf5ba5ca035cacd4ae7310044c4fa916610ed

      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\svscrypte.vbs

        Filesize

        31KB

        MD5

        56f6087b9e1f7b00737d9a2ce88f2a30

        SHA1

        1c5d05fa5e63abfa54161909eff2b44d6ba0f87b

        SHA256

        dafa1695d053b53f4a74b34fde6441094c8775d61d67a2b72eb7267685846343

        SHA512

        90af78fbe2822cc17077d4fd9c8a6be509db33801a613dd0b56a07b182073e7edf28c692a86258bf59dd1d979e6d930c68784bd47e47068c95ac1978029e1730

      • memory/1464-54-0x0000000075EF1000-0x0000000075EF3000-memory.dmp

        Filesize

        8KB