Analysis

  • max time kernel
    144s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    04/11/2022, 03:42

General

  • Target

    7ffffc8824697aaefeb826f50ee9a2eef27c068abe0f9d74bd6fe4b667c55754.exe

  • Size

    623KB

  • MD5

    9e92fdcce30e558761fed5a53a237620

  • SHA1

    acf2ce619a19b6f0fab81b9a7def73d093e61a9b

  • SHA256

    7ffffc8824697aaefeb826f50ee9a2eef27c068abe0f9d74bd6fe4b667c55754

  • SHA512

    589bdddc993a77c667f28c087c5dd54e09c6af2e983c7151f8359cc40b1a614923834a7cfa9f708c351102f40f82806a4e4653467b820118ce43bee771a603c9

  • SSDEEP

    12288:moxd1p2q4yysfWS0WFhZ28l2muHCys/HGPgoc0RkurOelhbuyH:moL2Ay2WuFhtduiysf1oouqeeyH

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 8 IoCs
  • UAC bypass 3 TTPs 1 IoCs
  • Deletes itself 1 IoCs
  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • AutoIT Executable 2 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Disables Windows logging functionality 2 TTPs

    Changes registry settings to disable Windows Event logging.

  • Modifies Internet Explorer settings 1 TTPs 12 IoCs
  • Modifies Internet Explorer start page 1 TTPs 1 IoCs
  • Modifies data under HKEY_USERS 5 IoCs
  • Modifies registry class 41 IoCs
  • Runs .reg file with regedit 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7ffffc8824697aaefeb826f50ee9a2eef27c068abe0f9d74bd6fe4b667c55754.exe
    "C:\Users\Admin\AppData\Local\Temp\7ffffc8824697aaefeb826f50ee9a2eef27c068abe0f9d74bd6fe4b667c55754.exe"
    1⤵
    • Drops startup file
    • Modifies Internet Explorer settings
    • Modifies Internet Explorer start page
    • Suspicious use of WriteProcessMemory
    PID:1100
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c regedit /s "C:\Users\Admin\AppData\Local\Temp\7yh.reg"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1928
      • C:\Windows\regedit.exe
        regedit /s "C:\Users\Admin\AppData\Local\Temp\7yh.reg"
        3⤵
        • Modifies system executable filetype association
        • UAC bypass
        • Adds Run key to start application
        • Modifies Internet Explorer settings
        • Modifies data under HKEY_USERS
        • Modifies registry class
        • Runs .reg file with regedit
        PID:1820
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c devmgmt.msc
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1444
      • C:\Windows\system32\mmc.exe
        "C:\Windows\system32\mmc.exe" "C:\Windows\system32\devmgmt.msc"
        3⤵
        • Drops file in System32 directory
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:956
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c del /f /s /q %windir%\*.bak
      2⤵
        PID:1116
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c del /f /s /q %windir%\prefetch\*.*
        2⤵
          PID:376
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c rd /s /q %windir%\temp & md %windir%\temp
          2⤵
            PID:592
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c rem del /f /q %userprofile%\cookies\*.*
            2⤵
              PID:1784
            • C:\Windows\system32\cmd.exe
              C:\Windows\system32\cmd.exe /c del /f /s /q %userprofile%\Local Settings\Temporary Internet Files\*.*
              2⤵
                PID:1068
              • C:\Windows\system32\cmd.exe
                C:\Windows\system32\cmd.exe /c del /f /s /q %userprofile%\Local Settings\Temp\*.*
                2⤵
                  PID:2040
                • C:\Windows\system32\cmd.exe
                  C:\Windows\system32\cmd.exe /c del /f /s /q %userprofile%\recent\*.*
                  2⤵
                    PID:2028
                  • C:\Windows\system32\cmd.exe
                    C:\Windows\system32\cmd.exe /c ping 127.0.0.1 -n 3&del /q "C:\Users\Admin\AppData\Local\Temp\7ffffc8824697aaefeb826f50ee9a2eef27c068abe0f9d74bd6fe4b667c55754.exe"
                    2⤵
                    • Deletes itself
                    • Suspicious use of WriteProcessMemory
                    PID:568
                    • C:\Windows\system32\PING.EXE
                      ping 127.0.0.1 -n 3
                      3⤵
                      • Runs ping.exe
                      PID:692

                Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\Users\Admin\AppData\Local\Temp\7yh.reg

                  Filesize

                  22KB

                  MD5

                  522e1c86c0fb779ee19d03f6872a6843

                  SHA1

                  d8598bcf7d5829535ecab51f84b3c54238320375

                  SHA256

                  f040cca38d439f7d69ad7c6fe115571ecc43cd400a17e940150c6b1ff0d6a2ba

                  SHA512

                  799217f9357f74c050d1a921acd6fb72625a4cb6ec2191b540bbc3ff272981dae990c134ee3aa4dd4ea0d5857f60cd81fe8fe5ef4954f9c080891788590208e6

                • memory/956-78-0x000007FEFA600000-0x000007FEFA63A000-memory.dmp

                  Filesize

                  232KB

                • memory/956-88-0x000007FEFA600000-0x000007FEFA63A000-memory.dmp

                  Filesize

                  232KB

                • memory/1100-77-0x0000000140000000-0x00000001400E6000-memory.dmp

                  Filesize

                  920KB

                • memory/1100-54-0x000007FEFB591000-0x000007FEFB593000-memory.dmp

                  Filesize

                  8KB

                • memory/1100-86-0x0000000140000000-0x00000001400E6000-memory.dmp

                  Filesize

                  920KB