Analysis

  • max time kernel
    122s
  • max time network
    143s
  • platform
    windows10_x64
  • resource
    win10-en
  • submitted
    09-09-2021 11:58

General

  • Target

    33894a6f9df34bfdd9408bf6771ddc3ce32a315287b228a3bef4753e699fd1d3.exe

  • Size

    994KB

  • MD5

    bfed6debcd8c3dbf8ea21655247ed3f0

  • SHA1

    2b05bc9c9a14e3f9db8e758b2f5fa060857499bf

  • SHA256

    33894a6f9df34bfdd9408bf6771ddc3ce32a315287b228a3bef4753e699fd1d3

  • SHA512

    73a033937bc55f24a9089e493b3c8c3c6c058a77905ca1c09b73288ac5932328668d588add546a51779e36da6408c1aeab52af290a6bfae15391ac2d8faf9a28

Malware Config

Signatures

  • Ouroboros/Zeropadypt

    Ransomware family based on open-source CryptoWire.

  • Modifies Windows Firewall 1 TTPs
  • Modifies extensions of user files 2 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Drops startup file 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops desktop.ini file(s) 64 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • NTFS ADS 31 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\33894a6f9df34bfdd9408bf6771ddc3ce32a315287b228a3bef4753e699fd1d3.exe
    "C:\Users\Admin\AppData\Local\Temp\33894a6f9df34bfdd9408bf6771ddc3ce32a315287b228a3bef4753e699fd1d3.exe"
    1⤵
    • Modifies extensions of user files
    • Drops startup file
    • Drops desktop.ini file(s)
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • NTFS ADS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4564
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c net stop SQLWriter
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4980
      • C:\Windows\SysWOW64\net.exe
        net stop SQLWriter
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3200
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop SQLWriter
          4⤵
            PID:3724
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c net stop SQLBrowser
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4016
        • C:\Windows\SysWOW64\net.exe
          net stop SQLBrowser
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3144
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop SQLBrowser
            4⤵
              PID:984
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c net stop MSSQLSERVER
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4172
          • C:\Windows\SysWOW64\net.exe
            net stop MSSQLSERVER
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:4316
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop MSSQLSERVER
              4⤵
                PID:4308
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c net stop MSSQL$CONTOSO1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4332
            • C:\Windows\SysWOW64\net.exe
              net stop MSSQL$CONTOSO1
              3⤵
              • Suspicious use of WriteProcessMemory
              PID:4248
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 stop MSSQL$CONTOSO1
                4⤵
                  PID:2448
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c net stop MSDTC
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:508
              • C:\Windows\SysWOW64\net.exe
                net stop MSDTC
                3⤵
                • Suspicious use of WriteProcessMemory
                PID:4224
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop MSDTC
                  4⤵
                    PID:2880
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /c bcdedit /set {default} bootstatuspolicy ignoreallfailures
                2⤵
                  PID:2884
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /c bcdedit /set {default} recoveryenabled no
                  2⤵
                    PID:2764
                  • C:\Windows\SysWOW64\cmd.exe
                    C:\Windows\system32\cmd.exe /c wbadmin delete catalog -quiet
                    2⤵
                      PID:1072
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c net stop SQLSERVERAGENT
                      2⤵
                      • Suspicious use of WriteProcessMemory
                      PID:1300
                      • C:\Windows\SysWOW64\net.exe
                        net stop SQLSERVERAGENT
                        3⤵
                        • Suspicious use of WriteProcessMemory
                        PID:1456
                        • C:\Windows\SysWOW64\net1.exe
                          C:\Windows\system32\net1 stop SQLSERVERAGENT
                          4⤵
                            PID:1624
                      • C:\Windows\SysWOW64\cmd.exe
                        C:\Windows\system32\cmd.exe /c net stop MSSQLSERVER
                        2⤵
                          PID:1648
                          • C:\Windows\SysWOW64\net.exe
                            net stop MSSQLSERVER
                            3⤵
                              PID:1376
                              • C:\Windows\SysWOW64\net1.exe
                                C:\Windows\system32\net1 stop MSSQLSERVER
                                4⤵
                                  PID:2056
                            • C:\Windows\SysWOW64\cmd.exe
                              C:\Windows\system32\cmd.exe /c net stop vds
                              2⤵
                                PID:2344
                                • C:\Windows\SysWOW64\net.exe
                                  net stop vds
                                  3⤵
                                    PID:2552
                                    • C:\Windows\SysWOW64\net1.exe
                                      C:\Windows\system32\net1 stop vds
                                      4⤵
                                        PID:2148
                                  • C:\Windows\SysWOW64\cmd.exe
                                    C:\Windows\system32\cmd.exe /c netsh advfirewall set currentprofile state off
                                    2⤵
                                      PID:2816
                                      • C:\Windows\SysWOW64\netsh.exe
                                        netsh advfirewall set currentprofile state off
                                        3⤵
                                          PID:3816
                                      • C:\Windows\SysWOW64\cmd.exe
                                        C:\Windows\system32\cmd.exe /c netsh firewall set opmode mode=disable
                                        2⤵
                                          PID:204
                                          • C:\Windows\SysWOW64\netsh.exe
                                            netsh firewall set opmode mode=disable
                                            3⤵
                                              PID:1972

                                        Network

                                        MITRE ATT&CK Enterprise v6

                                        Replay Monitor

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                                        Downloads

                                        • memory/204-144-0x0000000000000000-mapping.dmp

                                        • memory/508-127-0x0000000000000000-mapping.dmp

                                        • memory/984-120-0x0000000000000000-mapping.dmp

                                        • memory/1072-132-0x0000000000000000-mapping.dmp

                                        • memory/1300-133-0x0000000000000000-mapping.dmp

                                        • memory/1376-137-0x0000000000000000-mapping.dmp

                                        • memory/1456-134-0x0000000000000000-mapping.dmp

                                        • memory/1624-135-0x0000000000000000-mapping.dmp

                                        • memory/1648-136-0x0000000000000000-mapping.dmp

                                        • memory/1972-145-0x0000000000000000-mapping.dmp

                                        • memory/2056-138-0x0000000000000000-mapping.dmp

                                        • memory/2148-141-0x0000000000000000-mapping.dmp

                                        • memory/2344-139-0x0000000000000000-mapping.dmp

                                        • memory/2448-126-0x0000000000000000-mapping.dmp

                                        • memory/2552-140-0x0000000000000000-mapping.dmp

                                        • memory/2764-131-0x0000000000000000-mapping.dmp

                                        • memory/2816-142-0x0000000000000000-mapping.dmp

                                        • memory/2880-129-0x0000000000000000-mapping.dmp

                                        • memory/2884-130-0x0000000000000000-mapping.dmp

                                        • memory/3144-119-0x0000000000000000-mapping.dmp

                                        • memory/3200-116-0x0000000000000000-mapping.dmp

                                        • memory/3724-117-0x0000000000000000-mapping.dmp

                                        • memory/3816-143-0x0000000000000000-mapping.dmp

                                        • memory/4016-118-0x0000000000000000-mapping.dmp

                                        • memory/4172-121-0x0000000000000000-mapping.dmp

                                        • memory/4224-128-0x0000000000000000-mapping.dmp

                                        • memory/4248-125-0x0000000000000000-mapping.dmp

                                        • memory/4308-123-0x0000000000000000-mapping.dmp

                                        • memory/4316-122-0x0000000000000000-mapping.dmp

                                        • memory/4332-124-0x0000000000000000-mapping.dmp

                                        • memory/4980-115-0x0000000000000000-mapping.dmp