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Analysis

  • max time kernel
    151s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    19/09/2022, 16:41

General

  • Target

    8a571eacabb176621ed91318ea554edda8e405cd8f2ce1833d43850f032e627a.exe

  • Size

    123KB

  • MD5

    1b15ba50025490779f2eacdef86c42e3

  • SHA1

    29cb3899bc2d6bd8ecce5c7a4e9d20c2ce87ee75

  • SHA256

    8a571eacabb176621ed91318ea554edda8e405cd8f2ce1833d43850f032e627a

  • SHA512

    c415cc3f28b1e81f761ece4013f10dee430f894c2079dc2aa3649d82c6662844feef6de0c05610695525fd512c5a3c205c17758655219f1687cdd8454b94d36f

  • SSDEEP

    1536:gR0vxn3Pc0LCH9MtbvabUDzJYWu3BzTjTTTTTTTTAX6ySeyUbSMA:gR2xn3k0CdM1vabyzJYWqaXDSz

Score
10/10

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 6 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 10 IoCs
  • Suspicious behavior: EnumeratesProcesses 25 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of UnmapMainImage 2 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\svchost.exe
          C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
          2⤵
            PID:740
          • C:\Windows\system32\sppsvc.exe
            C:\Windows\system32\sppsvc.exe
            2⤵
              PID:1980
            • C:\Windows\system32\svchost.exe
              C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
              2⤵
                PID:1972
              • C:\Windows\system32\taskhost.exe
                "taskhost.exe"
                2⤵
                  PID:1104
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
                  2⤵
                    PID:1068
                  • C:\Windows\System32\spoolsv.exe
                    C:\Windows\System32\spoolsv.exe
                    2⤵
                      PID:288
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k NetworkService
                      2⤵
                        PID:292
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k netsvcs
                        2⤵
                          PID:864
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k LocalService
                          2⤵
                            PID:832
                          • 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 RPCSS
                              2⤵
                                PID:656
                              • C:\Windows\system32\svchost.exe
                                C:\Windows\system32\svchost.exe -k DcomLaunch
                                2⤵
                                  PID:576
                              • C:\Windows\Explorer.EXE
                                C:\Windows\Explorer.EXE
                                1⤵
                                  PID:1188
                                  • C:\Users\Admin\AppData\Local\Temp\8a571eacabb176621ed91318ea554edda8e405cd8f2ce1833d43850f032e627a.exe
                                    "C:\Users\Admin\AppData\Local\Temp\8a571eacabb176621ed91318ea554edda8e405cd8f2ce1833d43850f032e627a.exe"
                                    2⤵
                                    • Loads dropped DLL
                                    • Drops file in Program Files directory
                                    • Suspicious use of UnmapMainImage
                                    • Suspicious use of WriteProcessMemory
                                    PID:1268
                                    • C:\Program Files (x86)\Microsoft\WaterMark.exe
                                      "C:\Program Files (x86)\Microsoft\WaterMark.exe"
                                      3⤵
                                      • Executes dropped EXE
                                      • Suspicious behavior: EnumeratesProcesses
                                      • Suspicious use of AdjustPrivilegeToken
                                      • Suspicious use of UnmapMainImage
                                      • Suspicious use of WriteProcessMemory
                                      PID:1272
                                      • C:\Windows\SysWOW64\svchost.exe
                                        C:\Windows\system32\svchost.exe
                                        4⤵
                                        • Modifies WinLogon for persistence
                                        • Drops file in System32 directory
                                        • Drops file in Program Files directory
                                        PID:780
                                      • C:\Windows\SysWOW64\svchost.exe
                                        C:\Windows\system32\svchost.exe
                                        4⤵
                                        • Suspicious behavior: EnumeratesProcesses
                                        • Suspicious use of AdjustPrivilegeToken
                                        • Suspicious use of WriteProcessMemory
                                        PID:892
                                • C:\Windows\system32\Dwm.exe
                                  "C:\Windows\system32\Dwm.exe"
                                  1⤵
                                    PID:1164
                                  • C:\Windows\system32\lsm.exe
                                    C:\Windows\system32\lsm.exe
                                    1⤵
                                      PID:484
                                    • C:\Windows\system32\winlogon.exe
                                      winlogon.exe
                                      1⤵
                                        PID:408
                                      • C:\Windows\system32\wininit.exe
                                        wininit.exe
                                        1⤵
                                          PID:376
                                        • 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:368
                                          • 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:332
                                            • C:\Windows\System32\smss.exe
                                              \SystemRoot\System32\smss.exe
                                              1⤵
                                                PID:260

                                              Network

                                              MITRE ATT&CK Enterprise v6

                                              Replay Monitor

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                                              Downloads

                                              • C:\Program Files (x86)\Microsoft\WaterMark.exe

                                                Filesize

                                                123KB

                                                MD5

                                                1b15ba50025490779f2eacdef86c42e3

                                                SHA1

                                                29cb3899bc2d6bd8ecce5c7a4e9d20c2ce87ee75

                                                SHA256

                                                8a571eacabb176621ed91318ea554edda8e405cd8f2ce1833d43850f032e627a

                                                SHA512

                                                c415cc3f28b1e81f761ece4013f10dee430f894c2079dc2aa3649d82c6662844feef6de0c05610695525fd512c5a3c205c17758655219f1687cdd8454b94d36f

                                              • C:\Program Files (x86)\Microsoft\WaterMark.exe

                                                Filesize

                                                123KB

                                                MD5

                                                1b15ba50025490779f2eacdef86c42e3

                                                SHA1

                                                29cb3899bc2d6bd8ecce5c7a4e9d20c2ce87ee75

                                                SHA256

                                                8a571eacabb176621ed91318ea554edda8e405cd8f2ce1833d43850f032e627a

                                                SHA512

                                                c415cc3f28b1e81f761ece4013f10dee430f894c2079dc2aa3649d82c6662844feef6de0c05610695525fd512c5a3c205c17758655219f1687cdd8454b94d36f

                                              • \Program Files (x86)\Microsoft\WaterMark.exe

                                                Filesize

                                                123KB

                                                MD5

                                                1b15ba50025490779f2eacdef86c42e3

                                                SHA1

                                                29cb3899bc2d6bd8ecce5c7a4e9d20c2ce87ee75

                                                SHA256

                                                8a571eacabb176621ed91318ea554edda8e405cd8f2ce1833d43850f032e627a

                                                SHA512

                                                c415cc3f28b1e81f761ece4013f10dee430f894c2079dc2aa3649d82c6662844feef6de0c05610695525fd512c5a3c205c17758655219f1687cdd8454b94d36f

                                              • \Program Files (x86)\Microsoft\WaterMark.exe

                                                Filesize

                                                123KB

                                                MD5

                                                1b15ba50025490779f2eacdef86c42e3

                                                SHA1

                                                29cb3899bc2d6bd8ecce5c7a4e9d20c2ce87ee75

                                                SHA256

                                                8a571eacabb176621ed91318ea554edda8e405cd8f2ce1833d43850f032e627a

                                                SHA512

                                                c415cc3f28b1e81f761ece4013f10dee430f894c2079dc2aa3649d82c6662844feef6de0c05610695525fd512c5a3c205c17758655219f1687cdd8454b94d36f

                                              • memory/780-80-0x0000000020010000-0x0000000020022000-memory.dmp

                                                Filesize

                                                72KB

                                              • memory/780-185-0x0000000020010000-0x0000000020022000-memory.dmp

                                                Filesize

                                                72KB

                                              • memory/780-71-0x0000000020010000-0x0000000020022000-memory.dmp

                                                Filesize

                                                72KB

                                              • memory/780-75-0x0000000020010000-0x0000000020022000-memory.dmp

                                                Filesize

                                                72KB

                                              • memory/892-86-0x0000000020010000-0x000000002001B000-memory.dmp

                                                Filesize

                                                44KB

                                              • memory/892-83-0x0000000020010000-0x000000002001B000-memory.dmp

                                                Filesize

                                                44KB

                                              • memory/1268-57-0x0000000000400000-0x0000000000421000-memory.dmp

                                                Filesize

                                                132KB

                                              • memory/1268-54-0x0000000074F41000-0x0000000074F43000-memory.dmp

                                                Filesize

                                                8KB

                                              • memory/1268-58-0x0000000000400000-0x0000000000421000-memory.dmp

                                                Filesize

                                                132KB

                                              • memory/1268-63-0x0000000000400000-0x0000000000421000-memory.dmp

                                                Filesize

                                                132KB

                                              • memory/1272-79-0x0000000000400000-0x000000000042B000-memory.dmp

                                                Filesize

                                                172KB

                                              • memory/1272-81-0x0000000000400000-0x000000000042B000-memory.dmp

                                                Filesize

                                                172KB

                                              • memory/1272-184-0x0000000000400000-0x0000000000421000-memory.dmp

                                                Filesize

                                                132KB