Analysis

  • max time kernel
    40s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    20/10/2022, 02:29

General

  • Target

    de2fc3969ad536e51215ad695158238f5d3545036db91acdc05125142271f342.exe

  • Size

    408KB

  • MD5

    804f7e1c7072cd940b6ac38d1a791e90

  • SHA1

    4a8462e2902e553a42092dc4edff02c65a04324e

  • SHA256

    de2fc3969ad536e51215ad695158238f5d3545036db91acdc05125142271f342

  • SHA512

    31cf51cdd08f602a7fad1c6715b6f17aa9a3fa2292d14fbd5e21504a9806e9d19eed0578267359b69cba6044d4a87b00a4071c56766eca311eb69a3769877100

  • SSDEEP

    6144:p7ouwAH+MCsrXzhFQqgpfevouIJpIMJN/9:pzwAdCsXhFi/HVR

Score
10/10

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in System32 directory 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: MapViewOfSection 21 IoCs
  • Suspicious use of AdjustPrivilegeToken 21 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\lsass.exe
    C:\Windows\system32\lsass.exe
    1⤵
      PID:480
    • C:\Windows\system32\services.exe
      C:\Windows\system32\services.exe
      1⤵
        PID:464
        • C:\Windows\System32\spoolsv.exe
          C:\Windows\System32\spoolsv.exe
          2⤵
            PID:304
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
            2⤵
              PID:1560
            • C:\Windows\system32\sppsvc.exe
              C:\Windows\system32\sppsvc.exe
              2⤵
                PID:896
              • C:\Windows\system32\taskhost.exe
                "taskhost.exe"
                2⤵
                  PID:1224
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
                  2⤵
                    PID:1048
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k NetworkService
                    2⤵
                      PID:324
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k netsvcs
                      2⤵
                        PID:872
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k LocalService
                        2⤵
                          PID:848
                        • C:\Windows\System32\svchost.exe
                          C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
                          2⤵
                            PID:808
                          • C:\Windows\System32\svchost.exe
                            C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
                            2⤵
                              PID:744
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k RPCSS
                              2⤵
                                PID:672
                              • C:\Windows\system32\svchost.exe
                                C:\Windows\system32\svchost.exe -k DcomLaunch
                                2⤵
                                  PID:596
                              • C:\Windows\system32\winlogon.exe
                                winlogon.exe
                                1⤵
                                  PID:420
                                • 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:384
                                  • C:\Windows\system32\wininit.exe
                                    wininit.exe
                                    1⤵
                                      PID:372
                                      • C:\Windows\system32\lsm.exe
                                        C:\Windows\system32\lsm.exe
                                        2⤵
                                          PID:488
                                      • \\?\C:\Windows\system32\wbem\WMIADAP.EXE
                                        wmiadap.exe /F /T /R
                                        1⤵
                                          PID:1644
                                        • C:\Windows\Explorer.EXE
                                          C:\Windows\Explorer.EXE
                                          1⤵
                                            PID:1380
                                            • C:\Users\Admin\AppData\Local\Temp\de2fc3969ad536e51215ad695158238f5d3545036db91acdc05125142271f342.exe
                                              "C:\Users\Admin\AppData\Local\Temp\de2fc3969ad536e51215ad695158238f5d3545036db91acdc05125142271f342.exe"
                                              2⤵
                                              • Modifies visibility of file extensions in Explorer
                                              • Adds Run key to start application
                                              • Drops file in System32 directory
                                              • Suspicious behavior: EnumeratesProcesses
                                              • Suspicious behavior: MapViewOfSection
                                              • Suspicious use of AdjustPrivilegeToken
                                              • Suspicious use of SetWindowsHookEx
                                              • Suspicious use of WriteProcessMemory
                                              PID:864
                                          • C:\Windows\system32\Dwm.exe
                                            "C:\Windows\system32\Dwm.exe"
                                            1⤵
                                              PID:1312

                                            Network

                                            MITRE ATT&CK Enterprise v6

                                            Replay Monitor

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                                            Downloads

                                            • memory/864-54-0x0000000000400000-0x00000000004BB000-memory.dmp

                                              Filesize

                                              748KB

                                            • memory/864-57-0x0000000076831000-0x0000000076833000-memory.dmp

                                              Filesize

                                              8KB

                                            • memory/864-58-0x0000000000400000-0x00000000004BB000-memory.dmp

                                              Filesize

                                              748KB