Analysis

  • max time kernel
    152s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    06-03-2022 04:39

General

  • Target

    5a8d70b92e868f4f0ffb76f242dbf83a8816f704f523202a924a913f10a247fd.exe

  • Size

    1.3MB

  • MD5

    516b7b7da67d36d1311350f751801e0b

  • SHA1

    40964f706ff4ac8a8556ba8fde00c13684347057

  • SHA256

    5a8d70b92e868f4f0ffb76f242dbf83a8816f704f523202a924a913f10a247fd

  • SHA512

    cc61eb27f69cfd97cf23d87ad46df8c0042caceca2c14010c2d6e84ba9560a9b83a07c28bb404f8c32eae9b1092012412f9a7377620854ee35e1276fa2a1460a

Malware Config

Signatures

  • Ouroboros/Zeropadypt

    Ransomware family based on open-source CryptoWire.

  • Modifies Windows Firewall 1 TTPs
  • Drops desktop.ini file(s) 6 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • 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 Program Files directory 64 IoCs
  • Program crash 4 IoCs
  • NTFS ADS 4 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5a8d70b92e868f4f0ffb76f242dbf83a8816f704f523202a924a913f10a247fd.exe
    "C:\Users\Admin\AppData\Local\Temp\5a8d70b92e868f4f0ffb76f242dbf83a8816f704f523202a924a913f10a247fd.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • NTFS ADS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2144
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c net stop MSDTC
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:388
      • C:\Windows\SysWOW64\net.exe
        net stop MSDTC
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3380
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop MSDTC
          4⤵
            PID:3584
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c bcdedit /set {default} bootstatuspolicy ignoreallfailures
        2⤵
          PID:116
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c bcdedit /set {default} recoveryenabled no
          2⤵
            PID:3432
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c wbadmin delete catalog -quiet
            2⤵
              PID:2840
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c net stop SQLSERVERAGENT
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:648
              • C:\Windows\SysWOW64\net.exe
                net stop SQLSERVERAGENT
                3⤵
                • Suspicious use of WriteProcessMemory
                PID:1876
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop SQLSERVERAGENT
                  4⤵
                    PID:3276
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /c net stop MSSQLSERVER
                2⤵
                • Suspicious use of WriteProcessMemory
                PID:2708
                • C:\Windows\SysWOW64\net.exe
                  net stop MSSQLSERVER
                  3⤵
                  • Suspicious use of WriteProcessMemory
                  PID:2992
                  • C:\Windows\SysWOW64\net1.exe
                    C:\Windows\system32\net1 stop MSSQLSERVER
                    4⤵
                      PID:3456
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /c net stop vds
                  2⤵
                  • Suspicious use of WriteProcessMemory
                  PID:220
                  • C:\Windows\SysWOW64\net.exe
                    net stop vds
                    3⤵
                    • Suspicious use of WriteProcessMemory
                    PID:2756
                    • C:\Windows\SysWOW64\net1.exe
                      C:\Windows\system32\net1 stop vds
                      4⤵
                        PID:1428
                  • C:\Windows\SysWOW64\cmd.exe
                    C:\Windows\system32\cmd.exe /c netsh advfirewall set currentprofile state off
                    2⤵
                    • Suspicious use of WriteProcessMemory
                    PID:1888
                    • C:\Windows\SysWOW64\netsh.exe
                      netsh advfirewall set currentprofile state off
                      3⤵
                        PID:3488
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c netsh firewall set opmode mode=disable
                      2⤵
                      • Suspicious use of WriteProcessMemory
                      PID:2468
                      • C:\Windows\SysWOW64\netsh.exe
                        netsh firewall set opmode mode=disable
                        3⤵
                          PID:2652
                      • C:\Windows\SysWOW64\cmd.exe
                        C:\Windows\system32\cmd.exe /c net stop SQLWriter
                        2⤵
                        • Suspicious use of WriteProcessMemory
                        PID:3540
                        • C:\Windows\SysWOW64\net.exe
                          net stop SQLWriter
                          3⤵
                          • Suspicious use of WriteProcessMemory
                          PID:540
                          • C:\Windows\SysWOW64\net1.exe
                            C:\Windows\system32\net1 stop SQLWriter
                            4⤵
                              PID:2696
                        • C:\Windows\SysWOW64\cmd.exe
                          C:\Windows\system32\cmd.exe /c net stop SQLBrowser
                          2⤵
                            PID:3568
                            • C:\Windows\SysWOW64\net.exe
                              net stop SQLBrowser
                              3⤵
                                PID:3884
                                • C:\Windows\SysWOW64\net1.exe
                                  C:\Windows\system32\net1 stop SQLBrowser
                                  4⤵
                                    PID:3432
                              • C:\Windows\SysWOW64\cmd.exe
                                C:\Windows\system32\cmd.exe /c net stop MSSQLSERVER
                                2⤵
                                  PID:1328
                                  • C:\Windows\SysWOW64\net.exe
                                    net stop MSSQLSERVER
                                    3⤵
                                      PID:3176
                                      • C:\Windows\SysWOW64\net1.exe
                                        C:\Windows\system32\net1 stop MSSQLSERVER
                                        4⤵
                                          PID:2184
                                    • C:\Windows\SysWOW64\cmd.exe
                                      C:\Windows\system32\cmd.exe /c net stop MSSQL$CONTOSO1
                                      2⤵
                                        PID:1528
                                        • C:\Windows\SysWOW64\net.exe
                                          net stop MSSQL$CONTOSO1
                                          3⤵
                                            PID:3012
                                            • C:\Windows\SysWOW64\net1.exe
                                              C:\Windows\system32\net1 stop MSSQL$CONTOSO1
                                              4⤵
                                                PID:3916
                                        • C:\Windows\system32\WerFault.exe
                                          C:\Windows\system32\WerFault.exe -pss -s 404 -p 2444 -ip 2444
                                          1⤵
                                            PID:1404
                                          • C:\Windows\system32\WerFault.exe
                                            C:\Windows\system32\WerFault.exe -u -p 2444 -s 2936
                                            1⤵
                                            • Program crash
                                            PID:388
                                          • C:\Windows\explorer.exe
                                            explorer.exe
                                            1⤵
                                              PID:684
                                            • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                                              "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                                              1⤵
                                                PID:688
                                              • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                                                "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                                                1⤵
                                                  PID:3632
                                                  • C:\Windows\system32\WerFault.exe
                                                    C:\Windows\system32\WerFault.exe -u -p 3632 -s 4052
                                                    2⤵
                                                    • Program crash
                                                    PID:3900
                                                • C:\Windows\system32\WerFault.exe
                                                  C:\Windows\system32\WerFault.exe -pss -s 492 -p 3632 -ip 3632
                                                  1⤵
                                                    PID:3372
                                                  • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                                                    "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                                                    1⤵
                                                      PID:3824
                                                      • C:\Windows\system32\WerFault.exe
                                                        C:\Windows\system32\WerFault.exe -u -p 3824 -s 4320
                                                        2⤵
                                                        • Program crash
                                                        PID:2844
                                                    • C:\Windows\system32\WerFault.exe
                                                      C:\Windows\system32\WerFault.exe -pss -s 404 -p 3824 -ip 3824
                                                      1⤵
                                                        PID:3200
                                                      • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                                                        "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                                                        1⤵
                                                          PID:2808
                                                          • C:\Windows\system32\WerFault.exe
                                                            C:\Windows\system32\WerFault.exe -u -p 2808 -s 3868
                                                            2⤵
                                                            • Program crash
                                                            PID:1248
                                                        • C:\Windows\system32\WerFault.exe
                                                          C:\Windows\system32\WerFault.exe -pss -s 456 -p 2808 -ip 2808
                                                          1⤵
                                                            PID:1396

                                                          Network

                                                          MITRE ATT&CK Enterprise v6

                                                          Replay Monitor

                                                          Loading Replay Monitor...

                                                          Downloads

                                                          • memory/684-139-0x0000000004DA0000-0x0000000004DA1000-memory.dmp

                                                            Filesize

                                                            4KB

                                                          • memory/2808-200-0x0000025F4F050000-0x0000025F4F150000-memory.dmp

                                                            Filesize

                                                            1024KB