Analysis

  • max time kernel
    155s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220722-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220722-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-08-2022 07:10

General

  • Target

    c8e8b8530e40267cf2ca4634b3b2aecc5a4d437a52161439542061a38fa04fb9.exe

  • Size

    685KB

  • MD5

    707437ee8246fe4f032770adef8da36d

  • SHA1

    e55b6f232189be6aede028421ff1f8861d0d1913

  • SHA256

    c8e8b8530e40267cf2ca4634b3b2aecc5a4d437a52161439542061a38fa04fb9

  • SHA512

    80663ca3a751f4bb7125b465cc8919125214408562903cd56c82f39df3377c1f5e27cb89c4b6c536661e42d752126733b6f15a579ee562ac7a278c2871477ea2

Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 9 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 10 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c8e8b8530e40267cf2ca4634b3b2aecc5a4d437a52161439542061a38fa04fb9.exe
    "C:\Users\Admin\AppData\Local\Temp\c8e8b8530e40267cf2ca4634b3b2aecc5a4d437a52161439542061a38fa04fb9.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3468
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C chcp 1251 & powershell -Command Add-MpPreference -ExclusionPath "$ENV:USERPROFILE\Desktop" & powershell -Command Add-MpPreference -ExclusionPath "C:\ProgramData\Dllhost" & powershell -Command Add-MpPreference -ExclusionPath "C:\ProgramData\HostData"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3712
      • C:\Windows\SysWOW64\chcp.com
        chcp 1251
        3⤵
          PID:2148
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -Command Add-MpPreference -ExclusionPath "$ENV:USERPROFILE\Desktop"
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:5008
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -Command Add-MpPreference -ExclusionPath "C:\ProgramData\Dllhost"
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2648
      • C:\ProgramData\Dllhost\dllhost.exe
        "C:\ProgramData\Dllhost\dllhost.exe"
        2⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3488
        • C:\Windows\SysWOW64\cmd.exe
          "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "SecurityHealthSystray" /TR "C:\ProgramData\Dllhost\dllhost.exe"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1376
          • C:\Windows\SysWOW64\schtasks.exe
            SCHTASKS /CREATE /SC HOURLY /TN "SecurityHealthSystray" /TR "C:\ProgramData\Dllhost\dllhost.exe"
            4⤵
            • Creates scheduled task(s)
            PID:4544
        • C:\Windows\SysWOW64\cmd.exe
          "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "WindowsDefender" /TR "C:\ProgramData\Dllhost\dllhost.exe"
          3⤵
            PID:2664
            • C:\Windows\SysWOW64\schtasks.exe
              SCHTASKS /CREATE /SC HOURLY /TN "WindowsDefender" /TR "C:\ProgramData\Dllhost\dllhost.exe"
              4⤵
              • Creates scheduled task(s)
              PID:2776
          • C:\Windows\SysWOW64\cmd.exe
            "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "WmiPrvSE" /TR "C:\ProgramData\Dllhost\dllhost.exe"
            3⤵
              PID:3052
            • C:\Windows\SysWOW64\cmd.exe
              "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "AntiMalwareServiceExecutable" /TR "C:\ProgramData\Dllhost\dllhost.exe"
              3⤵
                PID:2104
              • C:\Windows\SysWOW64\cmd.exe
                "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "MicrosoftEdgeUpd" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                3⤵
                  PID:3660
                  • C:\Windows\SysWOW64\schtasks.exe
                    SCHTASKS /CREATE /SC HOURLY /TN "MicrosoftEdgeUpd" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                    4⤵
                    • Creates scheduled task(s)
                    PID:208
                • C:\Windows\SysWOW64\cmd.exe
                  "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "dllhost" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                  3⤵
                  • Suspicious use of WriteProcessMemory
                  PID:4212
                  • C:\Windows\SysWOW64\schtasks.exe
                    SCHTASKS /CREATE /SC HOURLY /TN "dllhost" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                    4⤵
                    • Creates scheduled task(s)
                    PID:1564
                • C:\Windows\SysWOW64\cmd.exe
                  "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "OneDriveService" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                  3⤵
                    PID:2412
                    • C:\Windows\SysWOW64\schtasks.exe
                      SCHTASKS /CREATE /SC HOURLY /TN "OneDriveService" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                      4⤵
                      • Creates scheduled task(s)
                      PID:4300
                  • C:\Windows\SysWOW64\cmd.exe
                    "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "NvStray" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                    3⤵
                      PID:2260
                      • C:\Windows\SysWOW64\schtasks.exe
                        SCHTASKS /CREATE /SC HOURLY /TN "NvStray" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                        4⤵
                        • Creates scheduled task(s)
                        PID:116
                    • C:\Windows\SysWOW64\cmd.exe
                      "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "WindowsDefenderServices\WindowsDefenderServicesService_bk8561" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                      3⤵
                      • Suspicious use of WriteProcessMemory
                      PID:3408
                      • C:\Windows\SysWOW64\schtasks.exe
                        SCHTASKS /CREATE /SC HOURLY /TN "WindowsDefenderServices\WindowsDefenderServicesService_bk8561" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                        4⤵
                        • Creates scheduled task(s)
                        PID:3344
                    • C:\Windows\SysWOW64\cmd.exe
                      "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "AntiMalwareSericeExecutable\AntiMalwareSericeExecutableService_bk8700" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                      3⤵
                      • Suspicious use of WriteProcessMemory
                      PID:3708
                      • C:\Windows\SysWOW64\schtasks.exe
                        SCHTASKS /CREATE /SC HOURLY /TN "AntiMalwareSericeExecutable\AntiMalwareSericeExecutableService_bk8700" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                        4⤵
                        • Creates scheduled task(s)
                        PID:1792
                    • C:\Windows\SysWOW64\cmd.exe
                      "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "MicrosoftUpdateServices\MicrosoftUpdateServicesService_bk3237" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                      3⤵
                      • Suspicious use of WriteProcessMemory
                      PID:4392
                      • C:\Windows\SysWOW64\schtasks.exe
                        SCHTASKS /CREATE /SC HOURLY /TN "MicrosoftUpdateServices\MicrosoftUpdateServicesService_bk3237" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                        4⤵
                        • Creates scheduled task(s)
                        PID:2652
                    • C:\Windows\SysWOW64\cmd.exe
                      "cmd.exe" /c SCHTASKS /CREATE /SC HOURLY /TN "SettingSysHost\SettingSysHostService_bk6486" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                      3⤵
                        PID:1140
                        • C:\Windows\SysWOW64\schtasks.exe
                          SCHTASKS /CREATE /SC HOURLY /TN "SettingSysHost\SettingSysHostService_bk6486" /TR "C:\ProgramData\Dllhost\dllhost.exe"
                          4⤵
                          • Creates scheduled task(s)
                          PID:4616
                      • C:\Windows\SysWOW64\cmd.exe
                        "cmd.exe" /c chcp 1251 & C:\ProgramData\Dllhost\winlogson.exe --config msi.bin --log off
                        3⤵
                          PID:1772
                          • C:\Windows\SysWOW64\chcp.com
                            chcp 1251
                            4⤵
                              PID:3384
                          • C:\Windows\SysWOW64\cmd.exe
                            "cmd.exe" /c chcp 1251 & C:\ProgramData\Dllhost\winlogson.exe --config msi.bin --log off
                            3⤵
                              PID:1944
                              • C:\Windows\SysWOW64\chcp.com
                                chcp 1251
                                4⤵
                                  PID:4392
                              • C:\Windows\SysWOW64\cmd.exe
                                "cmd.exe" /c chcp 1251 & C:\ProgramData\Dllhost\winlogson.exe --config msi.bin --log off
                                3⤵
                                  PID:5084
                                  • C:\Windows\SysWOW64\chcp.com
                                    chcp 1251
                                    4⤵
                                      PID:1092

                              Network

                              MITRE ATT&CK Enterprise v6

                              Replay Monitor

                              Loading Replay Monitor...

                              Downloads

                              • C:\ProgramData\Dllhost\dllhost.exe

                                Filesize

                                772KB

                                MD5

                                df3aaad73329e23cc133840595be5516

                                SHA1

                                f652635416a5e2bb3ceac0ef10119457f9b9a2d7

                                SHA256

                                38b2efab3e14bfb804b413447e404355aa399dc92cb8f3cdf125b8407d7cfc67

                                SHA512

                                269e64f1f9ece8ab0849f51bceadd55ed9e34209ec8d296ab9c7d5038b6dfec3321ca64727c49dccb01877a3a93f1972eef907c32144a85f5e391600a0cf8a1a

                              • C:\ProgramData\Dllhost\dllhost.exe

                                Filesize

                                772KB

                                MD5

                                df3aaad73329e23cc133840595be5516

                                SHA1

                                f652635416a5e2bb3ceac0ef10119457f9b9a2d7

                                SHA256

                                38b2efab3e14bfb804b413447e404355aa399dc92cb8f3cdf125b8407d7cfc67

                                SHA512

                                269e64f1f9ece8ab0849f51bceadd55ed9e34209ec8d296ab9c7d5038b6dfec3321ca64727c49dccb01877a3a93f1972eef907c32144a85f5e391600a0cf8a1a

                              • C:\ProgramData\HostData\logs.uce

                                Filesize

                                497B

                                MD5

                                13fda2ab01b83a5130842a5bab3892d3

                                SHA1

                                6e18e4b467cde054a63a95d4dfc030f156ecd215

                                SHA256

                                76973d42c8fceceab7ec85b3d01b218db92564993e93a9bea31c52aa73aeee9e

                                SHA512

                                c51f9fd6e452fbeeedd4dfaba3c7c887e337f01e68abdd27d4032f8be85def7ef3cf0c77bf60e425b085b76c0539464c6b6e5e805a69397c5519e8ccf9fffccc

                              • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

                                Filesize

                                2KB

                                MD5

                                ba246bd2d86f16b8e701e797989d424b

                                SHA1

                                048769be2e48bd66ddedbfcf9d40addb6168fc16

                                SHA256

                                37c38ce312bc65167a7a6208217dedc66559bd6dd149472fd7001a8e9db310ad

                                SHA512

                                473fedc38e188d36b1f2f3db119a5c6c1e8676a24392a64b60198ab38c6725a909b8564892608760cc2dfc6a1b4f72cf4370740f97dcb0722d3fd4e0faa57bec

                              • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

                                Filesize

                                18KB

                                MD5

                                18856488c47b39323898eb4f38c9fc3e

                                SHA1

                                536bdd701971e0d7c701bf47663e85d26ef7810b

                                SHA256

                                4296300d22ba0530a01cc10ad9516c3238a3d4b1245abd19dc6519200bf78cfb

                                SHA512

                                76e33b2ce1cd7fc8d5793be85550f816bce79570e29d4c8d08d075ba6515094af85d4fc36695a5e790378ffdba2747cdbb2ef216f472c1350e780eb69319270d

                              • memory/116-184-0x0000000000000000-mapping.dmp

                              • memory/208-183-0x0000000000000000-mapping.dmp

                              • memory/1092-191-0x0000000000000000-mapping.dmp

                              • memory/1140-174-0x0000000000000000-mapping.dmp

                              • memory/1376-163-0x0000000000000000-mapping.dmp

                              • memory/1564-179-0x0000000000000000-mapping.dmp

                              • memory/1772-186-0x0000000000000000-mapping.dmp

                              • memory/1792-178-0x0000000000000000-mapping.dmp

                              • memory/1944-188-0x0000000000000000-mapping.dmp

                              • memory/2104-166-0x0000000000000000-mapping.dmp

                              • memory/2148-138-0x0000000000000000-mapping.dmp

                              • memory/2260-170-0x0000000000000000-mapping.dmp

                              • memory/2412-169-0x0000000000000000-mapping.dmp

                              • memory/2648-158-0x0000000071080000-0x00000000710CC000-memory.dmp

                                Filesize

                                304KB

                              • memory/2648-155-0x0000000000000000-mapping.dmp

                              • memory/2652-177-0x0000000000000000-mapping.dmp

                              • memory/2664-164-0x0000000000000000-mapping.dmp

                              • memory/2776-180-0x0000000000000000-mapping.dmp

                              • memory/3052-165-0x0000000000000000-mapping.dmp

                              • memory/3344-176-0x0000000000000000-mapping.dmp

                              • memory/3384-187-0x0000000000000000-mapping.dmp

                              • memory/3408-171-0x0000000000000000-mapping.dmp

                              • memory/3468-132-0x0000000000A20000-0x0000000000AC8000-memory.dmp

                                Filesize

                                672KB

                              • memory/3468-136-0x00000000056C0000-0x0000000005726000-memory.dmp

                                Filesize

                                408KB

                              • memory/3468-135-0x0000000005520000-0x000000000552A000-memory.dmp

                                Filesize

                                40KB

                              • memory/3468-134-0x0000000005480000-0x0000000005512000-memory.dmp

                                Filesize

                                584KB

                              • memory/3468-133-0x0000000005A30000-0x0000000005FD4000-memory.dmp

                                Filesize

                                5.6MB

                              • memory/3488-159-0x0000000000000000-mapping.dmp

                              • memory/3488-162-0x00000000009D0000-0x0000000000A80000-memory.dmp

                                Filesize

                                704KB

                              • memory/3660-168-0x0000000000000000-mapping.dmp

                              • memory/3708-172-0x0000000000000000-mapping.dmp

                              • memory/3712-137-0x0000000000000000-mapping.dmp

                              • memory/4212-167-0x0000000000000000-mapping.dmp

                              • memory/4300-181-0x0000000000000000-mapping.dmp

                              • memory/4392-189-0x0000000000000000-mapping.dmp

                              • memory/4392-173-0x0000000000000000-mapping.dmp

                              • memory/4544-175-0x0000000000000000-mapping.dmp

                              • memory/4616-182-0x0000000000000000-mapping.dmp

                              • memory/5008-146-0x0000000071080000-0x00000000710CC000-memory.dmp

                                Filesize

                                304KB

                              • memory/5008-144-0x0000000005980000-0x000000000599E000-memory.dmp

                                Filesize

                                120KB

                              • memory/5008-150-0x0000000006DC0000-0x0000000006DCA000-memory.dmp

                                Filesize

                                40KB

                              • memory/5008-149-0x0000000006D70000-0x0000000006D8A000-memory.dmp

                                Filesize

                                104KB

                              • memory/5008-148-0x00000000073D0000-0x0000000007A4A000-memory.dmp

                                Filesize

                                6.5MB

                              • memory/5008-147-0x0000000005FE0000-0x0000000005FFE000-memory.dmp

                                Filesize

                                120KB

                              • memory/5008-154-0x0000000007080000-0x0000000007088000-memory.dmp

                                Filesize

                                32KB

                              • memory/5008-145-0x00000000069E0000-0x0000000006A12000-memory.dmp

                                Filesize

                                200KB

                              • memory/5008-152-0x0000000006FA0000-0x0000000006FAE000-memory.dmp

                                Filesize

                                56KB

                              • memory/5008-151-0x0000000006FD0000-0x0000000007066000-memory.dmp

                                Filesize

                                600KB

                              • memory/5008-143-0x0000000005350000-0x00000000053B6000-memory.dmp

                                Filesize

                                408KB

                              • memory/5008-142-0x0000000005130000-0x0000000005152000-memory.dmp

                                Filesize

                                136KB

                              • memory/5008-141-0x0000000004B00000-0x0000000005128000-memory.dmp

                                Filesize

                                6.2MB

                              • memory/5008-140-0x0000000004470000-0x00000000044A6000-memory.dmp

                                Filesize

                                216KB

                              • memory/5008-153-0x0000000007090000-0x00000000070AA000-memory.dmp

                                Filesize

                                104KB

                              • memory/5008-139-0x0000000000000000-mapping.dmp

                              • memory/5084-190-0x0000000000000000-mapping.dmp