Analysis

  • max time kernel
    153s
  • max time network
    111s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    03/10/2022, 12:54

General

  • Target

    226a5f5a855b7212c6a0c3724cf6e2a809bbf875048b77695f49771d54db42e0.exe

  • Size

    328KB

  • MD5

    43ca9513dcd1ac5ed7956af299de64a0

  • SHA1

    af57c6b3280ccabc7ac1c330a42c2fb357f27283

  • SHA256

    226a5f5a855b7212c6a0c3724cf6e2a809bbf875048b77695f49771d54db42e0

  • SHA512

    c72b08e13a81f39494a044e8b5b1c022ea62eb87ecccb0358fd2152104ba27cb8956d0f99b04dbe27ca970753837f47937232a5da09d3069d7f5b51c646f4541

  • SSDEEP

    6144:gYZTNk3D6LyUXwLLk+cR3qh0GQ43VJRD0ew+/UO85DajV3fH:gSNC80I+cR3R03VseuO8523f

Score
10/10

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 3 IoCs
  • Enumerates connected drives 3 TTPs 22 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 5 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 5 IoCs
  • Modifies Internet Explorer start page 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 22 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\lsass.exe
    C:\Windows\system32\lsass.exe
    1⤵
      PID:476
    • C:\Windows\system32\services.exe
      C:\Windows\system32\services.exe
      1⤵
        PID:460
        • C:\Windows\system32\sppsvc.exe
          C:\Windows\system32\sppsvc.exe
          2⤵
            PID:772
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
            2⤵
              PID:1700
            • C:\Windows\system32\taskhost.exe
              "taskhost.exe"
              2⤵
                PID:1128
              • C:\Windows\system32\svchost.exe
                C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
                2⤵
                  PID:1040
                • C:\Windows\System32\spoolsv.exe
                  C:\Windows\System32\spoolsv.exe
                  2⤵
                    PID:1012
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k NetworkService
                    2⤵
                      PID:1020
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k netsvcs
                      2⤵
                        PID:860
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k LocalService
                        2⤵
                          PID:836
                        • C:\Windows\System32\svchost.exe
                          C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
                          2⤵
                            PID:792
                          • C:\Windows\System32\svchost.exe
                            C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
                            2⤵
                              PID:740
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k RPCSS
                              2⤵
                                PID:652
                              • C:\Windows\system32\svchost.exe
                                C:\Windows\system32\svchost.exe -k DcomLaunch
                                2⤵
                                  PID:576
                              • \\?\C:\Windows\system32\wbem\WMIADAP.EXE
                                wmiadap.exe /F /T /R
                                1⤵
                                  PID:1832
                                • C:\Users\Admin\AppData\Local\Temp\226a5f5a855b7212c6a0c3724cf6e2a809bbf875048b77695f49771d54db42e0.exe
                                  "C:\Users\Admin\AppData\Local\Temp\226a5f5a855b7212c6a0c3724cf6e2a809bbf875048b77695f49771d54db42e0.exe"
                                  1⤵
                                  • Adds Run key to start application
                                  • Enumerates connected drives
                                  • Drops file in System32 directory
                                  • Suspicious use of AdjustPrivilegeToken
                                  • Suspicious use of WriteProcessMemory
                                  PID:1652
                                  • C:\Users\Admin\AppData\Local\Temp\226a5f5a855b7212c6a0c3724cf6e2a809bbf875048b77695f49771d54db42e0.exe
                                    "C:\Users\Admin\AppData\Local\Temp\226a5f5a855b7212c6a0c3724cf6e2a809bbf875048b77695f49771d54db42e0.exe"
                                    2⤵
                                    • Modifies WinLogon for persistence
                                    • Disables RegEdit via registry modification
                                    • Adds Run key to start application
                                    • Drops file in System32 directory
                                    • Drops file in Windows directory
                                    • Modifies Internet Explorer settings
                                    • Modifies Internet Explorer start page
                                    • Suspicious behavior: EnumeratesProcesses
                                    • Suspicious behavior: MapViewOfSection
                                    • Suspicious use of AdjustPrivilegeToken
                                    • Suspicious use of WriteProcessMemory
                                    PID:976
                                • C:\Windows\Explorer.EXE
                                  C:\Windows\Explorer.EXE
                                  1⤵
                                    PID:1276
                                  • C:\Windows\system32\Dwm.exe
                                    "C:\Windows\system32\Dwm.exe"
                                    1⤵
                                      PID:1244
                                    • C:\Windows\system32\lsm.exe
                                      C:\Windows\system32\lsm.exe
                                      1⤵
                                        PID:484
                                      • C:\Windows\system32\winlogon.exe
                                        winlogon.exe
                                        1⤵
                                          PID:416
                                        • C:\Windows\system32\csrss.exe
                                          %SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
                                          1⤵
                                            PID:380
                                          • C:\Windows\system32\wininit.exe
                                            wininit.exe
                                            1⤵
                                              PID:368

                                            Network

                                            MITRE ATT&CK Enterprise v6

                                            Replay Monitor

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                                            Downloads

                                            • memory/976-57-0x0000000000400000-0x00000000004B2000-memory.dmp

                                              Filesize

                                              712KB

                                            • memory/1276-58-0x00000000029F0000-0x00000000029F1000-memory.dmp

                                              Filesize

                                              4KB

                                            • memory/1652-54-0x0000000074C91000-0x0000000074C93000-memory.dmp

                                              Filesize

                                              8KB

                                            • memory/1652-60-0x0000000000400000-0x00000000004B2000-memory.dmp

                                              Filesize

                                              712KB

                                            • memory/1652-62-0x00000000FFFA0000-0x00000000FFFA9000-memory.dmp

                                              Filesize

                                              36KB

                                            • memory/1652-61-0x0000000000150000-0x0000000000202000-memory.dmp

                                              Filesize

                                              712KB

                                            • memory/1652-63-0x00000000FFFA0000-0x00000000FFFA9000-memory.dmp

                                              Filesize

                                              36KB