Analysis

  • max time kernel
    57s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    17-09-2020 15:28

General

  • Target

    8df97f59144a4f3d55572156abd94b750a1a6ebbb5d1a08c001b5e1f4a1ce351.exe

  • Size

    1.7MB

  • MD5

    3f4181968baaf480a628d522c14cee75

  • SHA1

    0cfbe9d8a205fa528c00c96253ff309ab666ee90

  • SHA256

    8df97f59144a4f3d55572156abd94b750a1a6ebbb5d1a08c001b5e1f4a1ce351

  • SHA512

    319332107b9da31aaa752dc75d5291c80668c204be2b6f0a3d31d4a48428bdccd5dcc7787678eb003fbb3d61af5245ea0d8c87b343cbaf77877e5f0c49e69db4

Malware Config

Signatures

  • Ouroboros/Zeropadypt

    Ransomware family based on open-source CryptoWire.

  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • Executes dropped EXE 2 IoCs
  • Modifies Windows Firewall 1 TTPs
  • Modifies extensions of user files 3 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Suspicious Office macro 2 IoCs

    Office document equipped with macros.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 autorun.inf file 1 TTPs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 1 IoCs
  • NTFS ADS 3 IoCs
  • Runs net.exe
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8df97f59144a4f3d55572156abd94b750a1a6ebbb5d1a08c001b5e1f4a1ce351.exe
    "C:\Users\Admin\AppData\Local\Temp\8df97f59144a4f3d55572156abd94b750a1a6ebbb5d1a08c001b5e1f4a1ce351.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3920
    • C:\Users\Admin\AppData\Local\Temp\._cache_8df97f59144a4f3d55572156abd94b750a1a6ebbb5d1a08c001b5e1f4a1ce351.exe
      "C:\Users\Admin\AppData\Local\Temp\._cache_8df97f59144a4f3d55572156abd94b750a1a6ebbb5d1a08c001b5e1f4a1ce351.exe"
      2⤵
      • Executes dropped EXE
      • 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:1032
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c net stop SQLWriter
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1460
        • C:\Windows\SysWOW64\net.exe
          net stop SQLWriter
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2160
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop SQLWriter
            5⤵
              PID:2356
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c net stop SQLBrowser
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4076
          • C:\Windows\SysWOW64\net.exe
            net stop SQLBrowser
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:4016
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop SQLBrowser
              5⤵
                PID:3244
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c net stop MSSQLSERVER
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:3952
            • C:\Windows\SysWOW64\net.exe
              net stop MSSQLSERVER
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:3112
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 stop MSSQLSERVER
                5⤵
                  PID:3736
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c net stop MSSQL$CONTOSO1
              3⤵
              • Suspicious use of WriteProcessMemory
              PID:2564
              • C:\Windows\SysWOW64\net.exe
                net stop MSSQL$CONTOSO1
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:3008
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop MSSQL$CONTOSO1
                  5⤵
                    PID:1120
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /c net stop MSDTC
                3⤵
                • Suspicious use of WriteProcessMemory
                PID:1184
                • C:\Windows\SysWOW64\net.exe
                  net stop MSDTC
                  4⤵
                  • Suspicious use of WriteProcessMemory
                  PID:636
                  • C:\Windows\SysWOW64\net1.exe
                    C:\Windows\system32\net1 stop MSDTC
                    5⤵
                      PID:2164
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /c bcdedit /set {default} bootstatuspolicy ignoreallfailures
                  3⤵
                    PID:2672
                  • C:\Windows\SysWOW64\cmd.exe
                    C:\Windows\system32\cmd.exe /c bcdedit /set {default} recoveryenabled no
                    3⤵
                      PID:3804
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c wbadmin delete catalog -quiet
                      3⤵
                        PID:1232
                      • C:\Windows\SysWOW64\cmd.exe
                        C:\Windows\system32\cmd.exe /c net stop SQLSERVERAGENT
                        3⤵
                        • Suspicious use of WriteProcessMemory
                        PID:1092
                        • C:\Windows\SysWOW64\net.exe
                          net stop SQLSERVERAGENT
                          4⤵
                            PID:1236
                            • C:\Windows\SysWOW64\net1.exe
                              C:\Windows\system32\net1 stop SQLSERVERAGENT
                              5⤵
                                PID:2516
                          • C:\Windows\SysWOW64\cmd.exe
                            C:\Windows\system32\cmd.exe /c net stop MSSQLSERVER
                            3⤵
                              PID:2100
                              • C:\Windows\SysWOW64\net.exe
                                net stop MSSQLSERVER
                                4⤵
                                  PID:648
                                  • C:\Windows\SysWOW64\net1.exe
                                    C:\Windows\system32\net1 stop MSSQLSERVER
                                    5⤵
                                      PID:1668
                                • C:\Windows\SysWOW64\cmd.exe
                                  C:\Windows\system32\cmd.exe /c net stop vds
                                  3⤵
                                    PID:3996
                                    • C:\Windows\SysWOW64\net.exe
                                      net stop vds
                                      4⤵
                                        PID:2208
                                        • C:\Windows\SysWOW64\net1.exe
                                          C:\Windows\system32\net1 stop vds
                                          5⤵
                                            PID:3856
                                      • C:\Windows\SysWOW64\cmd.exe
                                        C:\Windows\system32\cmd.exe /c netsh advfirewall set currentprofile state off
                                        3⤵
                                          PID:2976
                                          • C:\Windows\SysWOW64\netsh.exe
                                            netsh advfirewall set currentprofile state off
                                            4⤵
                                              PID:2184
                                          • C:\Windows\SysWOW64\cmd.exe
                                            C:\Windows\system32\cmd.exe /c netsh firewall set opmode mode=disable
                                            3⤵
                                              PID:3800
                                              • C:\Windows\SysWOW64\netsh.exe
                                                netsh firewall set opmode mode=disable
                                                4⤵
                                                  PID:3524
                                            • C:\ProgramData\Synaptics\Synaptics.exe
                                              "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
                                              2⤵
                                              • Executes dropped EXE
                                              PID:948
                                          • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
                                            "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" /automation -Embedding
                                            1⤵
                                            • Checks processor information in registry
                                            • Enumerates system info in registry
                                            • Suspicious behavior: AddClipboardFormatListener
                                            • Suspicious use of SetWindowsHookEx
                                            PID:2644

                                          Network

                                          MITRE ATT&CK Enterprise v6

                                          Replay Monitor

                                          Loading Replay Monitor...

                                          Downloads

                                          • memory/1032-53-0x00000000014D0000-0x00000000014D1000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/1032-51-0x00000000014D0000-0x00000000014D1000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/1032-43-0x00000000014D0000-0x00000000014D1000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/1032-44-0x0000000001CD0000-0x0000000001CD1000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/1032-49-0x00000000014D0000-0x00000000014D1000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/1032-50-0x0000000001CD0000-0x0000000001CD1000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/1032-45-0x00000000014D0000-0x00000000014D1000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/1032-47-0x00000000014D0000-0x00000000014D1000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/1032-54-0x0000000001CD0000-0x0000000001CD1000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/1032-46-0x0000000001CD0000-0x0000000001CD1000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/2644-40-0x0000019ECDAA0000-0x0000019ECDAA4000-memory.dmp

                                            Filesize

                                            16KB

                                          • memory/2644-37-0x0000019ECDAA0000-0x0000019ECDAA4000-memory.dmp

                                            Filesize

                                            16KB

                                          • memory/2644-21-0x00007FFD040F0000-0x00007FFD047B6000-memory.dmp

                                            Filesize

                                            6.8MB