Overview

overview

10

Static

static

8df97f5914...51.exe

windows7_x64

10

8df97f5914...51.exe

windows10_x64

10

Resubmissions

11-02-2020 15:13

200211-dqsyhkd89j 10

11-02-2020 13:53

200211-rjepmqlfdj 10

Analysis

  • max time kernel
    99s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7v191014
  • submitted
    11-02-2020 13:53

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General

  • Target

    8df97f59144a4f3d55572156abd94b750a1a6ebbb5d1a08c001b5e1f4a1ce351.exe

  • Size

    1.7MB

  • MD5

    3f4181968baaf480a628d522c14cee75

  • SHA1

    0cfbe9d8a205fa528c00c96253ff309ab666ee90

  • SHA256

    8df97f59144a4f3d55572156abd94b750a1a6ebbb5d1a08c001b5e1f4a1ce351

  • SHA512

    319332107b9da31aaa752dc75d5291c80668c204be2b6f0a3d31d4a48428bdccd5dcc7787678eb003fbb3d61af5245ea0d8c87b343cbaf77877e5f0c49e69db4

Score
10/10
ouroborosxmrigevasionminerpersistenceransomware

Malware Config

Signatures

  • Ouroboros/Zeropadypt

    Ransomware family based on open-source CryptoWire.

    ransomwareouroboros
  • xmrig

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

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

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Drops startup file 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • 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
  • Enumerates physical storage devices 1 TTPs

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

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 9 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⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:1164
    • 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
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:832
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c net stop SQLWriter
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1632
        • C:\Windows\SysWOW64\net.exe
          net stop SQLWriter
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1412
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop SQLWriter
            5⤵
              PID:1444
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c net stop SQLBrowser
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1452
          • C:\Windows\SysWOW64\net.exe
            net stop SQLBrowser
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:1220
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop SQLBrowser
              5⤵
                PID:1420
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c net stop MSSQLSERVER
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:736
            • C:\Windows\SysWOW64\net.exe
              net stop MSSQLSERVER
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:1732
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 stop MSSQLSERVER
                5⤵
                  PID:1056
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c net stop MSSQL$CONTOSO1
              3⤵
              • Suspicious use of WriteProcessMemory
              PID:1084
              • C:\Windows\SysWOW64\net.exe
                net stop MSSQL$CONTOSO1
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:1108
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop MSSQL$CONTOSO1
                  5⤵
                    PID:1332
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /c net stop MSDTC
                3⤵
                • Suspicious use of WriteProcessMemory
                PID:1492
                • C:\Windows\SysWOW64\net.exe
                  net stop MSDTC
                  4⤵
                  • Suspicious use of WriteProcessMemory
                  PID:1880
                  • C:\Windows\SysWOW64\net1.exe
                    C:\Windows\system32\net1 stop MSDTC
                    5⤵
                      PID:1444
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /c bcdedit /set {default} bootstatuspolicy ignoreallfailures
                  3⤵
                    PID:1412
                  • C:\Windows\SysWOW64\cmd.exe
                    C:\Windows\system32\cmd.exe /c bcdedit /set {default} recoveryenabled no
                    3⤵
                      PID:1360
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c wbadmin delete catalog -quiet
                      3⤵
                        PID:316
                      • C:\Windows\SysWOW64\cmd.exe
                        C:\Windows\system32\cmd.exe /c net stop SQLSERVERAGENT
                        3⤵
                          PID:1056
                          • C:\Windows\SysWOW64\net.exe
                            net stop SQLSERVERAGENT
                            4⤵
                              PID:1820
                              • C:\Windows\SysWOW64\net1.exe
                                C:\Windows\system32\net1 stop SQLSERVERAGENT
                                5⤵
                                  PID:2036
                            • C:\Windows\SysWOW64\cmd.exe
                              C:\Windows\system32\cmd.exe /c net stop MSSQLSERVER
                              3⤵
                                PID:1332
                                • C:\Windows\SysWOW64\net.exe
                                  net stop MSSQLSERVER
                                  4⤵
                                    PID:1268
                                    • C:\Windows\SysWOW64\net1.exe
                                      C:\Windows\system32\net1 stop MSSQLSERVER
                                      5⤵
                                        PID:1484
                                  • C:\Windows\SysWOW64\cmd.exe
                                    C:\Windows\system32\cmd.exe /c net stop vds
                                    3⤵
                                      PID:1444
                                      • C:\Windows\SysWOW64\net.exe
                                        net stop vds
                                        4⤵
                                          PID:1492
                                          • C:\Windows\SysWOW64\net1.exe
                                            C:\Windows\system32\net1 stop vds
                                            5⤵
                                              PID:1632
                                        • C:\Windows\SysWOW64\cmd.exe
                                          C:\Windows\system32\cmd.exe /c netsh advfirewall set currentprofile state off
                                          3⤵
                                            PID:600
                                            • C:\Windows\SysWOW64\netsh.exe
                                              netsh advfirewall set currentprofile state off
                                              4⤵
                                                PID:1760
                                            • C:\Windows\SysWOW64\cmd.exe
                                              C:\Windows\system32\cmd.exe /c netsh firewall set opmode mode=disable
                                              3⤵
                                                PID:1268
                                                • C:\Windows\SysWOW64\netsh.exe
                                                  netsh firewall set opmode mode=disable
                                                  4⤵
                                                    PID:1888
                                              • C:\ProgramData\Synaptics\Synaptics.exe
                                                "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
                                                2⤵
                                                • Executes dropped EXE
                                                PID:732
                                            • C:\Program Files\Microsoft Office\Office14\EXCEL.EXE
                                              "C:\Program Files\Microsoft Office\Office14\EXCEL.EXE" /automation -Embedding
                                              1⤵
                                                PID:1516

                                              Network

                                              MITRE ATT&CK Enterprise v6

                                              Replay Monitor

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                                              Downloads

                                              • memory/832-5-0x0000000000E80000-0x0000000000E91000-memory.dmp

                                                Filesize

                                                68KB

                                                Download

                                              • memory/832-7-0x0000000000E80000-0x0000000000E91000-memory.dmp

                                                Filesize

                                                68KB

                                                Download

                                              • memory/832-6-0x0000000001290000-0x00000000012A1000-memory.dmp

                                                Filesize

                                                68KB

                                                Download